NGK SPARK PLUG CO., LTD. Patent applications |
Patent application number | Title | Published |
20160141840 | SPARK PLUG - A spark plug ( | 05-19-2016 |
20160139098 | MEASUREMENT APPARATUS - A measurement apparatus includes a plurality of modules and a main unit for collecting measurement data output from the modules. The housing of the main unit can be carried by a user of the measurement apparatus, and the plurality of modules are removably accommodated in the housing. A CAN I/F circuit of the main unit collects the measurement data output from the module accommodated in the housing. A main CPU of the main unit outputs the collected measurement data to, for example, a personal computer connected to the main unit. An internal memory and a USB memory connected to a USB memory module store the collected measurement data. | 05-19-2016 |
20160109419 | RESIN MEMBER WITH GAS PERMEABLE MEMBER AND METHOD OF MANUFACTURING THE SAME, CASING, AND SENSOR - A resin member with a gas permeable member ( | 04-21-2016 |
20160107221 | METHOD OF PRODUCING THREADED MEMBER, METHOD OF PRODUCING SPARK PLUG, AND APPARATUS FOR PRODUCING THREADED MEMBER - A workpiece having a first portion and a second portion is held. The first portion extends in the direction of a center axis of the workpiece, and a male thread is to be rolled on the first portion. The length of the second portion in a direction perpendicular to the center axis is longer than that of the first portion. The male thread is formed on the outer circumference of the first portion using two rolling dies through rolling. At least a first portion center axis that is a part of the center axis and corresponds to the first portion is separated in a prescribed direction from a first virtual plane containing the center axes of the two rolling dies. In the workpiece held, the first portion center axis is inclined such that its distance from the first virtual plane increases with distance from the second portion. | 04-21-2016 |
20160105000 | SPARK PLUG - A spark plug with a center electrode, the center electrode having a small-diameter portion with a noble metal tip joined by laser welding to a front end of the small-diameter portion, a large-diameter portion made larger in diameter than the small-diameter portion and a connection portion connecting the small-diameter portion and the large-diameter portion to each other. In this spark plug, the following conditions (1), (2) and (3) are satisfied: | 04-14-2016 |
20160103054 | PARTICULATE MEASUREMENT SYSTEM - A particulate measurement system includes an ion generation section for generating ions by means of corona discharge; an electrification chamber for electrifying particulates contained in a gas under measurement; a measurement signal generation circuit for generating a measurement signal which correlates with the amount of the particulates; and a particulate amount determination section for determining the amount of the particulates. The particulate measurement system further includes a particle diameter estimation section for estimating the particle diameter of the particulates contained in the gas under measurement. The particulate amount determination section performs correction by multiplying the measurement signal or the amount of the particulates determined from the measurement signal by a coefficient relating to the ratio between the estimated particle diameter and a reference particle diameter. | 04-14-2016 |
20160102649 | GLOW PLUG - A glow plug having a heater portion configured to generate heat by being energized; a center wire having electrical conductivity, connected to the heater portion; a feed terminal having electrical conductivity; a spring member having electrical conductivity and configured to elastically deform such that the heater portion and the center wire are movable along the axial direction relative to the feed terminal, the spring member connecting the center wire and the feed terminal; a wall surface defining a region for accommodating the spring member; and an elastic portion having electrical insulation property and lower elasticity than that of the spring member, the elastic portion covering at least a part of the spring member while being in contact with the wall surface. | 04-14-2016 |
20160097738 | GAS SENSOR SYSTEM - A gas sensor system ( | 04-07-2016 |
20160097737 | GAS SENSOR SYSTEM - A gas sensor system ( | 04-07-2016 |
20160091457 | GAS SENSOR ELEMENT, GAS SENSOR, AND METHOD OF MANUFACTURING GAS SENSOR ELEMENT - A gas sensor element ( | 03-31-2016 |
20160091456 | GAS SENSOR ELEMENT, GAS SENSOR, AND METHOD OF MANUFACTURING GAS SENSOR ELEMENT - A gas sensor element ( | 03-31-2016 |
20160087411 | SPARK PLUG - A spark plug including a center electrode, an insulator, a metal shell, a first ground electrode, and a second ground electrode. The center electrode extends in an axial direction. The insulator has an axial hole extending in the axial direction. The center electrode is to be inserted into the axial hole. The metal shell is arranged at an outer periphery of the insulator. The first ground electrode has electrical continuity with the metal shell, and forms a first gap with a front end surface of the center electrode. The second ground electrode has electrical continuity with the metal shell, is sealed to metal shell, extends from the metal shell to a position facing a side surface of the center electrode, and forms an annular second gap between the side surface of the center electrode and an inner peripheral surface of the second ground electrode. | 03-24-2016 |
20160087410 | SPARK PLUG - A spark plug having an insulator that includes a first portion which accommodates a front end of the metallic terminal. A portion of the metallic terminal has a roughened surface portion with a Vickers hardness of 200 Hv or greater and 320 Hv or smaller. A first ratio of an outside diameter of the roughened surface corresponding to at least a part of the first portion of the insulator to the first bore diameter of the insulator is 0.90 or greater. A second ratio of the first bore diameter to the second bore diameter of the insulator is 0.80 or greater and 0.98 or smaller. | 03-24-2016 |
20160079739 | SPARK PLUG AND METHOD FOR MANUFACTURING SPARK PLUG - A spark plug includes: a metallic shell having a through hole extending in a direction of an axis; a cap covering an opening in the metallic shell; a melt portion formed between the cap and the metallic shell to join the cap and the metallic shell to each other; and a gap extending from a specific space which is surrounded by the metallic shell and the cap to the melt portion and interposed between the metallic shell and the cap. | 03-17-2016 |
20160077072 | GAS SENSOR APPARATUS AND CONCENTRATION MEASUREMENT METHOD PERFORMED THROUGH USE OF GAS SENSOR - A gas sensor apparatus including a gas sensor ( | 03-17-2016 |
20160076971 | PRESSURE SENSOR - A pressure sensor including a rod-shaped member, a tubular housing, a variable member and a pressure measuring element. The variable member is entirely disposed within the housing, is connected to the housing and the rod-shaped member, and deforms when the rod-shaped member is displaced relative to the housing along an axial direction. The variable member includes a first portion connected to the rod-shaped member, a second portion connected to the housing, and a bent portion which connects the first portion and the second portion to each other and has a bent shape. A portion of the second portion is a pressure receiving portion which displaces the rod-shaped member in the axial direction when receiving a pressure. The pressure receiving portion of the second portion has a substantially uniform thickness, and the thickness of the pressure receiving portion of the second portion is larger than that of the first portion. | 03-17-2016 |
20160071339 | BATTERY CONDITION DISPLAY SYSTEM - A battery state display system includes: a plurality of electric vehicles, each of the plurality of electric vehicles being configured to be driven by a battery containing battery fluid; and a display terminal. The display terminal includes: a communication unit configured to communicate with the plurality of electric vehicles; a display configured to display an image including a state of the battery of each of a plurality of electric vehicles on the display of the display terminal; and a processer configured to: control the display terminal to display on the display a battery state indication for each of the electric vehicles, the battery state indication including: a charge state indication representing a charge state of the battery; and a fluid amount indication relating to an amount of the battery fluid of the battery. | 03-10-2016 |
20160061756 | GAS DETECTOR AND PROGRAM - A first bridge fixed resistor ( | 03-03-2016 |
20160061683 | PRESSURE SENSOR - A variable member is connected to a rod-shaped member and connected to a tube portion to ensure airtightness within a housing, and deforms when the rod-shaped member is displaced relative to the housing along an axial direction. A position of the connection between the tube portion and the variable member in the axial direction is a position shifted from a rear end of a gap toward a front side by a predetermined length or a position at the front side with respect to the position shifted by the predetermined length. The predetermined length is a length which is 50% of a length of the gap in the axial direction. | 03-03-2016 |
20160056492 | FUEL BATTERY - A fuel gas supply path in a fuel cell stack includes in series a first path, a second path, and a third path. In the second path, two inlets of the fuel gas in each of power generating cells included in the second path are located at a first position PA and a second position PB, and the position of one outlet of the fuel gas in each power generating cell is located at a third position PC. In the third path, an inlet of the fuel gas in each of power generating cells included in the third path is located at a position coinciding with the third position PC when the power generating cells are viewed in the stacking direction, and an outlet of the fuel gas in each power generating cell is located at a position between the first position PA and the second position PB. | 02-25-2016 |
20160052826 | UNLEADED PIEZOELECTRIC CERAMIC COMPOSITION, PIEZOELECTRIC ELEMENT USING SAME, DEVICE, AND METHOD FOR MANUFACTURING UNLEADED PIEZOELECTRIC CERAMIC COMPOSITION - A lead-free piezoelectric ceramic composition includes a first crystal phase made of an alkali niobate/tantalate type perovskite oxide having piezoelectric properties, and a second crystal phase made of an M-Ti—O spinel compound (where the element M is a monovalent to quadrivalent element). | 02-25-2016 |
20160041041 | TEMPERATURE SENSOR - A temperature sensor includes a sheath member having an insulative holding member which contains an oxygen supplying substance and is formed in such a manner that the oxygen supplying substance is exposed when viewed from an opening on the distal end side of a sheath tube. Since the insulative holding member releases oxygen from the distal end side of the sheath member, a decrease in oxygen concentration around a thermistor element can be suppressed. Thus, it is possible to suppress a change in the characteristics of the thermistor element due to reduction action, and to suppress decrease in temperature detection accuracy. Since the oxygen supplying substance is contained in the insulative holding member, compared with a configuration where a pellet is disposed on the distal end side of the thermistor element, delay in heat conduction is less likely to occur, and a decrease in temperature detection response can be suppressed. | 02-11-2016 |
20160033436 | GAS DETECTION APPARATUS - A gas detection apparatus ( | 02-04-2016 |
20160028214 | PLASMA JET SPARK PLUG - A plasma jet plug has a cavity defined by a surface of a center electrode, an inner surface of an insulator, and a surface of a ground electrode. When a volume of a portion of the cavity on a front side of a front portion of the center electrode is a first volume V | 01-28-2016 |
20160023952 | CERAMIC COMPOSITION AND CUTTING TOOL - In a ceramic composition mainly composed of alumina (Al | 01-28-2016 |
20160017836 | CONTROL APPARATUS FOR DIESEL ENGINE AND CONTROL METHOD FOR DIESEL ENGINE - A control apparatus ( | 01-21-2016 |
20160003649 | SENSOR AND SENSOR MOUNTING STRUCTURE | 01-07-2016 |
20150380907 | SPARK PLUG - A spark plug comprises a ground electrode including a chip whose one end has a cylinder shape having a diameter A from 0.8 to 1.2 mm and whose main component is a noble metal, and an electrode base material. In the ground electrode, a portion of the other end of the chip is joined to the electrode base material through a fused portion. The spark plug also comprises a chip-and-base-material interface in which the chip and the electrode base material contact each other and which is surrounded by the fused portion. In a cross section passing through a center axis, a distance between an end point Pa | 12-31-2015 |
20150380906 | SPARK PLUG - A spark plug capable of suppressing the occurrence and growth of a crack and oxide scale between an electrode tip and a melt portion, satisfies the relationships of C | 12-31-2015 |
20150380744 | FUEL CELL - A fuel cell according to one mode includes a plate-like interconnector having a front surface and a back surface; a single cell having a power generation function; a gas chamber provided between the interconnector and the single cell; and one or more gas inlet ports for causing a fuel gas to flow into the gas chamber, the fuel cell further including a buffer chamber provided between the gas inlet ports and the gas chamber; a flow direction changing portion provided between the buffer chamber and the gas chamber so as to be located corresponding to the gas inlet ports, the flow direction changing portion having at least one of a front surface and a back surface, and a side surface; and a fuel gas path provided on at least one of the front surface side and the back surface side of the flow direction changing portion. | 12-31-2015 |
20150372458 | SPARK PLUG - A spark plug having a of center electrode, a ground electrode, and a noble metal tip that is laser-welded to at least one of the center electrode and the ground electrode The noble metal tip is joined to the electrode through a fused portion formed by laser welding, and the fused portion includes a first fused portion and a second fused portion. | 12-24-2015 |
20150372457 | SPARK PLUG - A spark plug includes a metal shell formed with a mounting male thread portion and a radially outwardly protruding seat portion and a solid annular gasket disposed between the male thread portion and the seat portion. The gasket has a recessed portion formed with a depth in the direction of an axis such that the recessed portion has an opening at a front end surface of the gasket located opposite to the seat portion. The front end surface of the gasket includes an inner peripheral front end surface region decreasing in thickness toward an inner periphery of the gasket and an outer peripheral front end surface region formed radially outside the inner peripheral front end surface region. The opening of the recessed portion is located radially inside an innermost periphery of the outer peripheral front end surface region. | 12-24-2015 |
20150372334 | FUEL CELL AND FUEL CELL STACK - A fuel cell including a pair of connectors ( | 12-24-2015 |
20150372319 | FUEL CELL AND FUEL CELL STACK - A fuel cell including a pair of connectors ( | 12-24-2015 |
20150372318 | FUEL CELL AND METHOD FOR MANUFACTURING SAME - A fuel cell according to one mode includes a plurality of stacked cell units, each cell unit including at least an electrically conductive interconnector having a front surface and a back surface; a connection member which is electrically connected to the interconnector; a single cell which includes an anode, an electrolyte, and a cathode, and which is electrically connected to the connection member; and a separator having an opening which is connected to an outer peripheral portion of the single cell, the cell units being clamped together in a stacking direction, wherein the connection member of at least one cell unit of the cell units has a thickness different from that of the connection member of another cell unit. | 12-24-2015 |
20150357797 | SPARK PLUG - A spark plug is provided with: a central electrode; a ground electrode forming a spark discharge gap with the center electrode; and a chip welded to at least one of the electrodes. The chip has a thermal expansion coefficient smaller than a thermal expansion coefficient of the electrode to which the chip is welded, and the difference between the content A (mass %) of a noble metal component in the chip and the content B (mass %) of a noble metal component in the electrode (A−B) is 50 mass % or more. In an intermediate layer between the chip and the electrode, holes are present. When the length of a boundary between the chip and the intermediate layer is L (mm), and the length of the holes in a direction along the boundary of the chip and the intermediate layer is N (mm), 0.1≦N/L≦0.4. | 12-10-2015 |
20150357796 | SPARK PLUG AND METHOD OF MANUFACTURING THE SAME - A spark plug including a ground electrode body and an electrode tip that is resistance welded to the ground electrode body and that has a discharge surface. In a specific sectional plane, a welding surface is located in the first direction from an outer surface of the ground electrode body. The welding surface includes a flat portion whose distance to the point P | 12-10-2015 |
20150349498 | SPARK PLUG - A spark plug including an insulator having an axial hole, a center electrode held at one end side and a terminal electrode held at the other end side of the axial hole, an electrical connection portion electrically connecting the center electrode and the terminal electrode inside the axial hole, wherein the electrical connection portion includes a conductor including a ceramic phase and a metal wire having a spiral structure portion, wherein the metal wire has a wire diameter of 0.1 mm or greater and 0.5 mm or smaller, and wherein the spiral structure portion of the metal wire is configured such that an outer diameter thereof is 1.0 mm or greater and 3 mm or smaller, a pitch thereof is 0.3 mm or greater and 1 mm or smaller, and a height thereof is 8 mm or greater and 30 mm or smaller. | 12-03-2015 |
20150340847 | MANUFACTURING METHOD OF SPARK PLUG - A manufacturing method for manufacturing a spark plug including a rod-shaped center electrode extending in an axial direction, an insulator having a tubular shape having an axial hole and holding the center electrode in the axial hole, a metal shell having a tubular shape having an end surface and an inner peripheral surface, a gap being formed between a leading end side of the insulator and the inner peripheral surface, and a ground electrode welded to the end surface, the manufacturing method including welding the ground electrode to the end surface, and removing welding sag, which is formed inside the metal shell by the welding, by causing a tip end portion of a linear member to come into contact with the welding sag while rotating a tool in which a base end portion of the linear member is fixed. | 11-26-2015 |
20150340845 | SPARK PLUG - A spark plug having an insulator, a metallic shell disposed around the insulator, a first ground electrode having a first surface facing a side surface of a center electrode in a radial direction so as to form a first gap, and a second ground electrode having a second surface facing the side surface of the center electrode in the radial direction so as to form a second gap. A relation 60°≦θ≦150° is satisfied, where θ is a smaller one of angles formed between a first line connecting an axial line of the center electrode and the center of the first surface and a second line connecting the axis and a center of the second surface when viewed from a forward end side toward a rear end side in the direction of the axis. | 11-26-2015 |
20150340844 | ELECTRODE MATERIAL AND SPARK PLUG - An electrode material for at least one of a center electrode ( | 11-26-2015 |
20150340843 | SPARK PLUG - A spark plug includes a portion from a position at a distance of 0.1 mm from a base end to a distal end that is categorizable into a high hardness portion and a low hardness portion using a hardness distribution of a ground electrode, the high hardness portion being a portion from the position at a distance of 0.1 mm from a base end to a position at a distance of 0.1×n (mm) from a base end, the low hardness portion being a portion from a position at a distance of 0.1×(n+1) (mm) from the base end to the distal end, where “n” is a natural number. The low hardness portion includes a portion that has a largest curvature in the ground electrode. A highest hardness of the low hardness portion is lower than a lowest hardness of the high hardness portion. | 11-26-2015 |
20150340842 | SPARK PLUG, AND PRODUCTION METHOD THEREFOR - A spark plug includes a ceramic insulator having an engagement portion, and a metallic shell provided around the ceramic insulator and having a protrusion. The protrusion has a diameter-decreasing portion, which seats on the engagement portion via an annular seat packing. On a cross section including an axial line, θs>θp is satisfied, where θp represents an acute angle (°) between a straight line orthogonal to the axial line and the contour of the engagement portion, and θs represents an acute angle (°) between a straight line orthogonal to the axial line and the contour of the diameter-decreasing portion. In the aforementioned cross section, Hvo>Hvi is satisfied, where Hvo represents the Vickers hardness (Hv) of the seat packing at the midpoint of a first line segment, and Hvi represents the Vickers hardness (Hv) of the seat packing at the midpoint of a second line segment. | 11-26-2015 |
20150334777 | GLOW PLUG WITH COMBUSTION PRESSURE SENSOR - A glow plug including a heater ( | 11-19-2015 |
20150333487 | IGNITION PLUG - A spark plug has a metal shell and a cylindrical ceramic insulator disposed in an inner circumference of the metal shell. An axial hole extends in an axial line CL direction through the insulator, and has a tip located more to a tip side of the spark plug than a tip of the metal shell, and a distance along the axial line CL | 11-19-2015 |
20150325982 | SPARK PLUG - A spark plug having an insulator with a through hole formed therein in a direction of an axis, a center electrode disposed in a front side of the through hole, a metal terminal disposed in a rear side of the through hole, an electrical connection part arranged in the through hole to establish electrical connection between the center electrode and the metal terminal and a metal shell holding therein the insulator. The electrical connection part has a conductor including a conductive material and at least one kind of Fe-containing oxide material. The Fe-containing oxide material contains at least FeO. The conductor satisfies a relationship of 0.06≦S1/(S1+S2)≦0.46 where, in a cross section taken along the axis, S1 is an area occupied by the conductive material and S2 is an area occupied by the Fe-containing oxide material. | 11-12-2015 |
20150323492 | GAS SENSOR - A gas sensor element of an air/fuel ratio sensor includes a plurality of through holes formed in an insulating substrate at forward end regions of corresponding electrode pads to which the through holes are connected. In the gas sensor element, the through holes are not formed within the longitudinal rear end regions and center regions of the electrode pads. Since in each of the electrode pads, the region of the electrode pad other than its forward end region occupies a greater area than that of the forward end region, it is easy to bring connection terminals into contact with the regions of the electrode pads other than their forward end regions. Therefore, it is possible to prevent the connection terminals from coming into contact with the through holes, so as to thereby prevent occurrence of an electrical connection failure between the connection terminals and the electrode pads. | 11-12-2015 |
20150318672 | SPARK PLUG - A spark plug includes an insulator with an axial through hole, a center electrode disposed in a front side of the through hole and a metal terminal disposed in a rear side of the through hole. The spark plug further includes a front conductive glass seal layer, a first resistor, a rear conductive glass seal layer, a seal contact member, a second resistor and a conductive elastic material arranged, in this order from the front to the rear, between the center electrode and the metal terminal within the through hole. The first resistor is formed containing at least a conductive material and a glass material. The second resistor is formed as a wire wound resistor having 30 or more turns of wire. | 11-05-2015 |
20150318563 | FUEL CELL WITH SEPARATOR, METHOD FOR MANUFACTURING SAME, AND FUEL CELL STACK - A fuel cell with separator includes a fuel cell body having a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode; a plate-like metal separator having first and second main surfaces and an opening which opens at the first and second main surfaces; a joint formed of an Ag-containing brazing filler metal and adapted to join the fuel cell body and the first main surface of the metal separator; and a seal formed of a glass-containing sealing material and disposed closer to the opening than is the joint, the seal being located between the first main surface and the fuel cell body and extending along the entire perimeter of the opening. | 11-05-2015 |
20150316444 | SENSOR CONTROL DEVICE, SENSOR CONTROL SYSTEM, AND SENSOR CONTROL METHOD - A sensor control apparatus includes a detection section and a computation section. The detection section detects an output signal output from a sensor element and changing in accordance with oxygen concentration. The computation section obtains, as correction information used for calculation of a correction coefficient, the output signal obtained in a period during which recirculation of exhaust gas into an intake atmosphere by an exhaust gas recirculation apparatus is stopped and an idle stop operation of an internal combustion engine is being performed. | 11-05-2015 |
20150302668 | INFORMATION SHARING SYSTEM, ON-VEHICLE DIAGNOSIS TERMINAL, AND DISPLAY TERMINAL - An information sharing system including a plurality of on-vehicle diagnosis terminals and one or more of display terminals sharing diagnostic information over wireless communication. The respective terminals store, in a storing unit, data sets, also stored in another terminal with which communication was established, and a stored clock time. The terminals include a communication-establishing unit that includes a searching unit and an establishing unit. The searching unit is configured to search an planned-connection terminal capable of establishing communication with the terminal, and that does not yet have a stored clock time, or the stored clock time that is stored in the on-vehicle diagnosis terminal and from which a predetermined time has passed, and the establishing unit is configured to establish communication with the planned-connection terminal. | 10-22-2015 |
20150300642 | GLOW PLUG AND METHOD FOR MANUFACTURING SAME - A glow plug includes a cylindrical housing having an axial hole which extends in the direction of an axis and provided with, on an outer circumferential surface thereof, a screw portion for being screwed into a mounting hole of an internal combustion engine, and a heater member inserted into the axial hole in a state where at least front end portion thereof projects from a front end of the housing. The housing includes a tool engagement portion which is provided at a rear end side than the screw portion and to which a tool is engaged when the being mounted to the internal combustion engine. An inner circumference of the tool engagement portion has a shape which follows an outer circumferential shape of the tool engagement portion. | 10-22-2015 |
20150295388 | SPARK PLUG - An ignition plug includes a tubular ceramic insulator and a metallic shell having a protrusion protruding radially inward. The ceramic insulator has an engagement portion which is engaged with a receiving surface of the protrusion and an intermediate trunk portion extending rearward from the rear end of the engagement portion. A≦1.70 and B ≧1.20 are satisfied, where A is the thickness (mm) of the metallic shell along a direction which passes through the center of the receiving surface and is orthogonal to the axial line on a cross section including the axial line and B is the minimum thickness (mm) of the metallic shell | 10-15-2015 |
20150295162 | LEAD-FREE PIEZO-ELECTRIC PORCELAIN COMPOSITION, PIEZO-ELECTRIC ELEMENT USING THE SAME, AND METHOD FOR PRODUCING LEAD-FREE PIEZO-ELECTRIC PORCELAIN COMPOSITION - A lead-free piezo-electric porcelain composition which contains a main phase having voids and which is formed of a first crystal phase composed of an alkali niobate/tantalate-based perovskite oxide having piezo-electric characteristics; and a sub-phase containing a second crystal phase composed of an A | 10-15-2015 |
20150293053 | GAS SENSOR CONTROL DEVICE - A gas sensor control apparatus ( | 10-15-2015 |
20150292739 | GLOW PLUG - A glow plug having a rod-shaped heater including a resistance heating element; a tubular metallic shell; a rod-shaped inner shaft accommodated in the metallic shell and to which electric current is applied externally; and a conductive tubular member disposed inside the metallic shell. The tubular member has openings at its opposite ends. The rear end of the heater is press-fitted into one of the openings, and the front end portion of the inner shaft is inserted into the other opening, whereby the resistance heating element and the inner shaft are electrically connected. The heater includes an electrode terminal portion formed on the outer circumferential surface thereof. The tubular member includes an intermediate portion located between the one end and the other end and in contact with the electrode terminal portion, and the wall thickness at the one end is smaller than the wall thickness at the intermediate portion. | 10-15-2015 |
20150288150 | SPARK PLUG - A spark plug having an insulator formed of an alumina-based sintered material which contains an Si component and a rare earth element component that satisfy the following conditions (1) and (2): (1) an oxide-reduced amount of the Si component (mass %) is greater than or equal to 0.05 and less than or equal to 0.45; and (2) a ratio of an oxide-reduced amount of the rare earth element component to an oxide-reduced amount of the Si component is greater than or equal to 2.5 and less than or equal to 4.5, and which has alumina grains and an alumina grain boundary phase including a complex oxide crystal phase satisfying the following condition (3): (3) the complex oxide crystal phase contains at least two components selected from among an Al component, an Si component, a Group 2 element component, and a rare earth element component. | 10-08-2015 |
20150285711 | MICROPARTICLE DETECTION SYSTEM - A particulate detection system ( | 10-08-2015 |
20150275811 | DIESEL ENGINE CONTROL APPARATUS, DIESEL ENGINE CONTROL METHOD, AND METHOD FOR DESIGNING DIESEL ENGINE CONTROL APPARATUS - A diesel engine control apparatus for controlling combustion in a diesel engine, including a cylinder heater and a control unit which controls the heating of the interior of the cylinder by the cylinder heater, and which performs at least fuel injection timing control for the diesel engine at least at one of a time when the EGR ratio is changed and at a time when the diesel engine is switched to premixed combustion. Also disclosed is a method for controlling combustion in a diesel engine and a method for designing a control apparatus for controlling combustion in a diesel engine. | 10-01-2015 |
20150275810 | APPARATUS AND METHOD FOR CONTROLLING DIESEL ENGINE - A diesel engine control apparatus and method for controlling fuel injection timing of a diesel engine, the apparatus including a cylinder pressure sensor, a parameter computation unit and a control unit. The cylinder pressure of a diesel engine is detected, and a parameter relating to a change in cylinder pressure of the diesel engine is computed based on the detected cylinder pressure. The fuel injection timing at the time when combustion in the diesel engine is switched to premixed combustion is controlled such that the parameter falls within a target range. | 10-01-2015 |
20150270687 | SPARK PLUG AND IGNITION SYSTEM - A spark plug has a center electrode containing a shaft portion, a tip portion joined to a forward end portion of the shaft portion, and a joint portion joining the shaft portion and the tip portion together. In the spark plug, the distance between the surface of the center electrode and an inner edge of the insulator is 0.3 mm or greater. The inner edge is a forward-end-side edge of an inner circumferential surface of a small diameter portion of the insulator, the small diameter portion being a part of a portion of the insulator for accommodating the tip portion and having the smallest inner diameter. | 09-24-2015 |
20150263490 | SPARK PLUG - A spark plug includes an insulator with a through hole, a center electrode disposed at a tip end side of the through hole, a metal terminal nut disposed at a rear end side of the through hole, a resistor disposed in a position between the center electrode and the metal terminal nut inside of the through hole and apart from the center electrode, and a conductive seal that is disposed between the resistor and the center electrode inside of the through hole and contacts both the center electrode and the resistor. A contact surface between the resistor and the conductive seal includes at least one point where a distance in the central axis direction from a virtual plane that includes a rear end of the resistor and is vertical to the central axis is local maximum, and include at least one point where the distance is local minimum. | 09-17-2015 |
20150233338 | IGNITION TIMING CONTROL DEVICE AND IGNITION SYSTEM - The present invention provides an ignition timing control device and an ignition system which are capable of performing ignition timing control that easily suppresses occurrence of knocking for internal combustion engine. An ignition timing control device has a knocking detection device | 08-20-2015 |
20150232334 | OXYGEN-PERMEABLE FILM - An oxygen-permeable film through which oxygen permeates from a high oxygen partial pressure side of the film to a low oxygen partial pressure side of the film by means of an oxygen partial pressure difference serving as a driving force, the oxygen-permeable film being characterized by including a mixture of stabilized zirconia serving as an oxygen ion conductor, and an electron conductor represented by a compositional formula of La | 08-20-2015 |
20150226688 | GAS DETECTOR - A gas detector includes a detecting element, a circuit board, a housing case having a gas introduction hole, and a metal member which covers the gas introduction hole. The detecting element is disposed under the metal member. The gas detector further includes a detecting element wiring fusing prevention member which is electrically conductive and is electrically connected to a grounding line of the circuit board. The detecting element wiring fusing prevention member is disposed at a position such that the shortest distance between the metal member and the detecting element wiring fusing prevention member is smaller than that between the metal member and the detecting element. | 08-13-2015 |
20150222096 | SPARK PLUG - A spark plug having a metal shell, center electrode and a ground electrode. The ground electrode includes an electrode base portion extending from a front end portion of the metal shell toward the front, a bent portion connected at one end thereof to a front end of the electrode base portion and an electrode distal end portion extending from the other end of the bent portion and forming a spark discharge gap with a center electrode. The ground electrode has a base material and a coating layer applied to the base material. The coating layer is formed on at least a front end face and an outer circumferential surface other than a center-electrode-side surface of the electrode distal end portion of the ground electrode. The base material of the ground electrode is exposed at least at a part of the electrode base portion. | 08-06-2015 |
20150222095 | SPARK PLUG - A spark plug includes an insulator and a metal shell arranged around the insulator and having a thread portion formed with a thread diameter of M12. The insulator has an engagement portion held on a step portion of the metal shell via a plate packing and a leg portion located to leave a clearance between the leg portion and an inner circumferential surface of the metal shell. Assuming that: L (mm) is a distance from a front end of the plate packing toward the front; and A (mm) is a size of the clearance, a site of the clearance where the size A becomes 0.5 mm or smaller is located at or rear of a position of 2.0 mm from the front end toward the front; and a relationship of A≧L×0.2+0.2 (mm) is satisfied within a range of 3.0≦L≦4.0. | 08-06-2015 |
20150214697 | SPARK PLUG - A spark plug having a resistor containing SiO | 07-30-2015 |
20150214557 | FUEL CELL, AND FUEL CELL STACK - A fuel cell ( | 07-30-2015 |
20150212035 | GAS SENSOR ELEMENT AND GAS SENSOR - A gas sensor element ( | 07-30-2015 |
20150207300 | SPARK PLUG - A spark plug including an insulator containing an Al component, in terms of oxides, 89 mass % or more and a Ti component, in terms of oxides, more than 0 mass % and 0.2 mass % or less, characterized in that the insulator is formed of an alumina-based sintered material which contains, in a grain boundary phase present between alumina crystal grains, a first crystal phase containing at least one species selected from among an La component, an Nd component, a Pr component, a Y component, an Er component, a Yb component, and an Lu component, and a second crystal phase containing at least one species of Group 2 element components, an Al component and an Si component. | 07-23-2015 |
20150207299 | SPARK PLUG - A spark plug wherein an outer diameter of a first face that is a gap foliating face of the center electrode tip is denoted as R | 07-23-2015 |
20150204759 | PARTICULATE SENSOR - A particulate sensor ( | 07-23-2015 |
20150204750 | NON-RESONANT KNOCK SENSOR - A non-resonant knock sensor includes: a sensor body having a metal shell provided with a shell-side cylindrical portion and a shell-side flange portion, a piezoelectric element, a weight arranged to hold the piezoelectric element between the shell-side flange portion and the weight and a fixing member having a third through hole through which the shell-side cylindrical portion is inserted and being arranged to press the weight toward the shell-side flange portion and thereby fix the weight in position; and a resin molded part. The fixing member has formed therein flow paths for introducing a resin into an inner space between the shell-side cylindrical portion and the piezoelectric element. The flow paths are provided in the form of at least one of being connected to the third through hole and being separated from the third through hole and are formed intermittently in a circumferential direction of the fixing member. | 07-23-2015 |
20150200404 | FUEL CELL, AND FUEL CELL STACK - A fuel cell ( | 07-16-2015 |
20150194792 | SPARK PLUG - A spark plug includes an insulating insulator and a metal shell. The metal shell includes a caulking portion, a seat portion with a tapering surface, a thread portion with a thread size equal to or less than M12, and a protrusion. The insulating insulator includes a lock portion locked to the protrusion, and is secured to the metal shell in a state held between the caulking portion and the protrusion. | 07-09-2015 |
20150192545 | PARTICULATE SENSOR - A particulate sensor ( | 07-09-2015 |
20150188294 | SPARK PLUG - A spark plug includes an insulator including an axial hole and having an outer periphery with a tapered outer face; a metal shell having a thread portion and a tapered inner face; and a circular packing sandwiched between the tapered outer face of the insulator and the tapered inner face of the metal shell. On at least one cross section including the axis, (A/B)≧3.1, B≧0.25, and (A+B)≦2.0 are satisfied, where A represents a length of (a difference between an effective diameter of the thread portion and an inner diameter at a rear end of the tapered inner face)/2, and B represents a length of (a difference between the inner diameter at the rear end of the tapered inner face and an inner diameter at a front end of the tapered inner face)/2. | 07-02-2015 |
20150188293 | SPARK PLUG - A spark plug includes a center electrode, an insulator, a metallic shell, and a seal member for providing a seal between the insulator and the metallic shell. The insulator includes a first portion, a second portion located axially forward of the first portion and being smaller than the first portion, and an insulator first-diameter-reducing-portion whose outside diameter reduces forward and which connects the first portion and the second portion. The metallic shell includes a protrusion that includes a metallic shell diameter-reducing-portion whose inside diameter reduces forward. The seal member is disposed between the insulator first-diameter-reducing-portion and the metallic shell diameter-reducing-portion. A relationship θ | 07-02-2015 |
20150180215 | SPARK PLUG - A sparkplug includes: an insulator with an axial hole extending along an axial line; a metal shell covering the insulator; and a shelf part inside the metal shell. The insulator includes a second column part formed in the front end side of a tapering part. When a volume surrounded by a first plane that passes through the front end of the shelf part of the metal shell and is orthogonal to the axial line, a curved surface extending from an outer circumference of the second column part, and an outer circumferential surface of the insulator is defined as A, and a volume surrounded by the first plane, the curved surface, a second plane that passes through the front end of the metal shell and is orthogonal to the axial line, and the axial hole of the insulator is defined as B, a relational expression 0.9≦A/B≦2.4 is satisfied. | 06-25-2015 |
20150162725 | SPARK PLUG - A spark plug includes: an insulator having an axial hole; a conductive member disposed around the insulator; a center electrode disposed inside the axial hole, having a bar shape extending in the axial direction, and located on a rear end side with respect to a front end of the conductive member; a ground electrode forming a spark gap between the ground electrode and the center electrode; and a connection part including a plurality of spokes extending in a radial direction whose inner ends are connected to the ground electrode, and connecting the conductive member to the ground electrode. The connection part includes a joint part that is jointed to an inner surface of the conductive member, and the ground electrode has at least one of a notch and a groove at a position that is different from a position connected to the spokes in a circumferential direction. | 06-11-2015 |
20150153294 | GAS DETECTOR - A gas detector includes a gas detection element having a protection layer formed of an oxide film mainly containing tantalum oxide (Ta | 06-04-2015 |
20150149682 | IN-VEHICLE SENSOR, IN-VEHICLE SENSOR SYSTEM, AND METHOD OF SETTING IDENTIFIERS OF IN-VEHICLE SENSORS IN IN-VEHICLE SENSOR SYSTEM - An in-vehicle sensor ( | 05-28-2015 |
20150145403 | SPARK PLUG - An ignition plug having a center electrode, a grounding electrode, an insulator, and a metal shell. The center electrode is held by the insulator, and the insulator is held by metal shell. A cavity is formed between the grounding electrode and the center electrode. The grounding electrode is joined to the inner wall surface of the metal shell via a melting portion. In the melting portion, in a predetermined cutting surface MS including a melting deepest point DP and a central axis CX, a percentage ratio MDD of a melting depth MD of the melting portion with respect to a thickness of the grounding electrode is 5% or more, and an area Sm of a portion included in an outer circumferential side of the metal shell is 10% or more of the entire area S. | 05-28-2015 |
20150145402 | SPARK PLUG AND MANUFACTURING METHOD THEREOF - A spark plug includes a center electrode, a ground electrode, and a cylindrical metal shell. The ground electrode is welded to the metal shell via a weld portion. The weld portion is formed along the outer circumference end part of an annular part in the ground electrode. The weld portion has a plurality of melt extending parts extending toward the inner circumference side from the outer circumference end part of the annular part and aligned such that adjacent ones are connected to each other at the end part. The plurality of melt extending parts partially include smaller melt extending parts whose melting depth is smaller than others. | 05-28-2015 |
20150143901 | SENSOR - A sensor includes a sensor element; a circuit board having an element attachment surface on which the sensor element is mounted; a casing member for housing the circuit board, the casing member having a measurement chamber which faces the sensor element and communicates with the target atmosphere through a gas inlet; an annular elastic seal member which is interposed between the element attachment surface and the casing member in such a manner that the elastic seal member is in contact with the element attachment surface. The elastic seal member is made of foamed rubber and has an end surface flat portion which faces the casing member and another end surface flat portion which faces the element attachment. The elastic seal member is interposed between the element attachment surface and the casing member such that the elastic seal member is compressed between the flat portions of the end surfaces. | 05-28-2015 |
20150134186 | INFORMATION SHARING SYSTEM, ON-VEHICLE DIAGNOSIS TERMINAL, AND DISPLAY TERMINAL - An information sharing system ( | 05-14-2015 |
20150130345 | SPARK PLUG AND METHOD OF MANUFACTURING SPARK PLUG - A ground electrode comprised of a noble metal tip having an outer circumferential surface, a holder having an inner circumferential surface defining a through hole for the noble metal tip thereon, and a body to which the holder is joined. At least one of a) the inner circumferential surface of the holder which forms the through hole, and b) the outer circumferential surface of the noble metal tip which is disposed in the through hole, continuously reduces in diameter toward the forward side. A forward end surface of the noble metal tip is located on a forward side with respect to a forward end surface of the holder. | 05-14-2015 |
20150120229 | PARTICULATE MEASUREMENT SYSTEM - A particulate amount determination section of a particulate measurement system corrects a measurement signal or the amount of particulates determined from the measurement signal based on one or a plurality of three operating condition parameters selected from speed of the vehicle, rotational speed of the internal combustion engine and torque of the internal combustion engine. | 04-30-2015 |
20150114095 | COMBUSTION PRESSURE SENSOR AND METHOD OF MANUFACTURING THE SAME - A combustion pressure sensor having a tubular housing extending in an axial direction DX, a displacement member disposed within the housing, and a tubular connection member which elastically connects the displacement member to the housing. The combustion pressure sensor has a housing weld W | 04-30-2015 |
20150114087 | PARTICULATE MEASUREMENT SYSTEM - A particulate measurement system measures the amount of particulates when at least one or a plurality of three operating condition parameters selected from speed of the vehicle, rotational speed of the internal combustion engine and torque of the internal combustion engine fall within previously set respective ranges, and the particulate measurement system does not measure the amount of particulates or invalidates the result of measurement of the amount of particulates when the one or plurality of operating condition parameters do not fall within the previously set respective ranges. | 04-30-2015 |
20150108116 | GLOW PLUG - A glow plug ( | 04-23-2015 |
20150107879 | WIRING SUBSTRATE, MULTI-PIECE WIRING SUBSTRATE, AND METHOD FOR MANUFACTURING SAME - A wiring substrate includes a substrate main body which is formed of a ceramic laminate and has a rectangular shape in plan view, and which has a front surface and a back surface and has four side surfaces, each being located between the front surface and the back surface, and having a groove surface located on a side toward the front surface and a fracture surface located on a side toward the back surface; and a metalized layer which is formed on the front surface of the substrate main body so as to extend along the four side surfaces, and which has a rectangular frame shape in plan view, wherein a horizontal surface of the ceramic laminate of the substrate main body is exposed between the metalized layer and the groove surface of each side surface of the substrate main body. | 04-23-2015 |
20150102720 | SPARK PLUG - A spark plug includes an electrode wherein a plurality of fusion regions are formed by melting to each other a circular noble metal tip having a diameter of not less than 2 mm and a base material disposed around an outer periphery of the noble metal tip. In a particular tip cross section, a total length of the portions passing the fusion region on the circumference of a circle A concentric to an outline of the tip and having a diameter of 90% of the length of the tip is not less than 30% of the length of the circumference of the concentric circle A, and a total length of the portions on which a circumference of a concentric circle B, having the same diameter as that of the outline passes, is not less than 30% of the length of the circumference of the concentric circle B. | 04-16-2015 |
20150101394 | GAS SENSOR - In a gas sensor ( | 04-16-2015 |
20150083703 | HEATER CONTROL APPARATUS FOR GAS SENSOR - In a heather control apparatus for a gas sensor, a CPU obtains upper and lower limit values by adding a predetermined value to and subtracting the predetermined value from an Rpvs average obtained in a last heater energization period (or to an Rpvs value obtained for the first time), and sets a window W | 03-26-2015 |
20150076136 | GLOW PLUG AND METHOD FOR MANUFACTURING SAME - A glow plug includes a housing having an axial hold and provided with a screw portion, and a heater member inserted into the axial hole. The housing includes a front-end-side body portion extending to the front end side from a front end of the screw portion, and a gasket portion lying adjacent to a front end side of the front-end-side body portion and bent at a bent portion provided at a rear end thereof so that at least a rear end portion thereof extends in a direction intersecting a direction of an axis. The gasket portion includes a pressure contact portion in which a surface thereof located at an outer circumferential side is brought into pressure contact with a seat surface of an internal combustion engine when the screw portion is screwed into a mounting hole in the internal combustion engine. | 03-19-2015 |
20150075700 | METHOD AND APPARATUS FOR MANUFACTURING WELDED RESIN ARTICLE - A method and apparatus for manufacturing a welded resin article which includes (a) bringing first and second resin members to come into contact with each other; (b) applying laser light to the first and second resin members while moving the laser light relative to the first and second resin members; (c1) obtaining a value corresponding to the intensity of infrared light from a plurality of locations on a surface; (d) successively calculating, as a section average, the average of a predetermined number of successive values, among those obtained from the plurality of locations corresponding to the intensity of the infrared light; (e) a step of successively calculating a deviation judgment value; and (f) a step of successively judging whether or not the deviation judgment value falls within a predetermined judgment threshold range. | 03-19-2015 |
20150075473 | GLOW PLUG AND METHOD FOR MANUFACTURING SAME - A glow plug includes a cylindrical housing having an axial hole and provided with a screw portion, and a heater member which is inserted into the axial hole in a state where at least a front end portion thereof projects from a front end of the housing. The housing includes a pressure contact portion brought into pressure contact with a seat surface of an internal combustion engine when the screw portion is screwed into a mounting hole of the internal combustion engine, and a cylindrical front-end-side body portion provided between the pressure contact portion and the screw portion. The front-end-side body portion includes a holding portion which holds the heater member directly or indirectly at an inner circumference thereof, and the holding portion has a smallest outer diameter in the front-end-side body portion. | 03-19-2015 |
20150069902 | SPARK PLUG - A spark plug includes an insulator, a terminal electrode, a center electrode, a resistor, and a glass seal layer. The terminal electrode has: a recess part opened to the front end side and having a depth in a center axis direction of the terminal electrode; and a flat part neighboring the recess part at its outer circumference side. The relationship 0.52≦B/A≦0.91 is satisfied, wherein A (mm | 03-12-2015 |
20150068896 | SENSOR CONTROL DEVICE - A gas sensor control device ( | 03-12-2015 |
20150068278 | LOAD DRIVE APPARATUS AND SENSOR CONTROL APPARATUS - A load drive apparatus ( | 03-12-2015 |
20150061485 | SPARK PLUG - A spark plug includes an insulator having an axial hole, a metal terminal member having an insert portion and a depression formation zone existing on the insert portion and having depressions, and a metallic shell. The spark plug satisfies the following conditions: (1) the insert portion has a length H of 35 mm or more; (2) the depression formation zone has a length F of 13 mm or more; (3) the insert portion has a smooth surface zone on its outer circumferential surface; (4) the ratio (A/B) between diameter A of a forward end of the insert portion and inside diameter B of the insulator measured at the forward end satisfies the relational expression 0.9≦A/B≦0.98; and (5) Vickers hardness of the insert portion measured at the center of a cross section of the insert portion is 150 Hv or more to 350 Hv or less. | 03-05-2015 |
20150060274 | GAS SENSOR ELEMENT AND GAS SENSOR - A gas sensor element ( | 03-05-2015 |
20150056537 | FUEL CELL - A fuel cell includes a main body which is formed by stacking a cathode layer, an electrolyte layer, and an anode layer, in which the surface of one of the cathode and anode layers serves as a first main surface, and the surface of the other layer serves as a second main surface; a first current collector in contact with the first main surface; and a second current collector in contact with the second main surface. As viewed in a thickness direction, at least a portion of the boundary of a second region of the second current collector corresponding to the second main surface is located within a first region of the first current collector corresponding to the first main surface, and the remaining portion is located within the first region or on the boundary of the first region. | 02-26-2015 |
20150052973 | GAS SENSOR - A protector ( | 02-26-2015 |
20150048066 | GLOW PLUG WITH PRESSURE SENSOR - A glow plug ( | 02-19-2015 |
20150047880 | SPARK PLUG - A spark plug exhibiting excellent withstand voltage characteristics and mechanical strength at high temperature, which are comparable to those at ambient temperature. The spark plug having an insulator formed of an alumina-based sintered material containing: an Al component, an Si component, a Group 2 element component, and a rare earth element component. The amounts of such components satisfy a condition (1): 0.25≦ oxide-reduced amount (mass %) of the Si component ≦1.25, and a condition (2): 1.35≦[(oxide-reduced amount of the Si component)/((oxide-reduced amount of the Group 2 element component)/(oxide-reduced amount of the rare earth element component))]≦7.5. The alumina-based sintered material includes alumina grains, and a glass phase including a crystal phase that satisfies a condition (3) that the crystal phase includes at least one of an aluminate crystal phase and a silicate crystal phase, each having a grain size of 20 to 350 nm. | 02-19-2015 |
20150030949 | FUEL CELL - The fuel cell includes a fuel cell stack in which a plurality of planar power generation cells are stacked in a thickness direction thereof. The fuel cell also includes a heat exchanger provided between the two adjacent power generation cells in the stacking direction and in contact with the power generation cells, and including an internal first flow path that passes the oxidant gas or fuel gas supplied from outside. The fuel cell also includes a second flow path connected to an outlet side of the first flow path of the heat exchanger and to the cathode side or the anode side of each of the power generation cells, and supplying the oxidant gas or fuel gas that has passed through the first flow path to the cathode side or anode side of each of the power generation cells on both sides in the stacking direction of the heat exchanger. | 01-29-2015 |
20150027409 | IGNITION TIMING CONTROL DEVICE AND IGNITION TIMING CONTROL SYSTEM - An ignition timing control device ( | 01-29-2015 |
20150022074 | SPARK PLUG HAVING AN EMBEDDED TIP THAT IS PREVENTED FROM DETACHMENT DUE TO THERMAL STRESS - A spark plug includes a center electrode, a ground electrode, and a ground-electrode-side tip joined to the ground electrode such that at least a portion of the tip along its thickness direction is embedded in the ground electrode. The ground-electrode-side tip is joined to the ground electrode through a fusion zone formed between the ground electrode and a proximal side of the tip. On a section containing a center axis of the ground electrode and in parallel with the thickness direction of the ground-electrode-side tip, E/F≧1.1 is satisfied, where E (mm) is the longest distance along the thickness direction from an inner side of the ground electrode to a boundary between the fusion zone and the ground electrode, and F (mm) is the largest amount of embedment of the tip in the inner side surface along the thickness direction. | 01-22-2015 |
20150021944 | CARRIER DEVICE AND CERAMIC MEMBER - A ceramic member, in a carrier device, includes: a plurality of ceramic layers that have insulating properties and are integrally sintered; a clamping electrode formed on a first ceramic layer among the plurality of ceramic layers and inside of the plurality of ceramic layers, and configured to attract a dielectric material by electrostatic force; a power feed port configured to receive a supply of electric power to the clamping electrode from outside of the ceramic member; a land formed on a second ceramic layer, which is different from the first ceramic layer among the plurality of ceramic layers, and configured to receive electric power through the power feed port; and a via arranged to pass through at least one of the plurality of ceramic layers and provided as a conductive material to electrically connect the clamping electrode with the land. | 01-22-2015 |
20150020574 | MICROPARTICLE SENSOR - A particulate sensor including a sensor unit ( | 01-22-2015 |
20150016010 | CARRIER DEVICE AND CERAMIC MEMBER - A ceramic member, in a carrier device, including: a plurality of ceramic layers; a clamping electrode formed on a first ceramic layer among the plurality of ceramic layers and inside of the plurality of ceramic layers, and configured to attract a dielectric material by electrostatic force; an electric heating element formed on a second ceramic layer, which is more distant from a side holding a carried object than the first ceramic layer among the plurality of ceramic layers, and configured to generate heat using electric power; a power feed port; a land formed on a third ceramic layer among the plurality of ceramic layers, and configured to receive electric power through the power feed port; and a via arranged to pass through at least one of the plurality of ceramic layers and provided as a conductive material to electrically connect the electric heating element with the land. | 01-15-2015 |
20150014302 | CERAMIC HEATER, GLOW PLUG, METHOD OF MANUFACTURING CERAMIC HEATER AND METHOD OF MANUFACTURING GLOW PLUG - A ceramic heater wherein in at least one cross section of the ceramic heater orthogonal to the axial direction, a first resistor cross section has no protrusion on a first inner portion of the contour of a first resistor cross section, and has two or more protrusions on a first outer portion of the contour of the first resistor cross section and a method of manufacturing the ceramic heater. | 01-15-2015 |
20150013431 | MULTIGAS SENSOR AND MULTIGAS SENSOR DEVICE - A multigas sensor ( | 01-15-2015 |
20140373800 | CERAMIC GLOW PLUG - A ceramic glow plug includes a ceramic heater; a tubular sleeve which holds the outer circumference of the ceramic heater with a front end portion thereof protruding from the front end of the sleeve; and a tubular housing which surrounds a rear end portion of the ceramic heater and has a mounting portion for mounting the housing. The sleeve has a small-diameter portion which is accommodated in a front end portion of the housing and has an outer diameter smaller than the inner diameter of the front end portion of the housing, and a large-diameter portion which is connected to the small-diameter portion, disposed frontward of the front end portion of the housing, and has a diameter larger than the inner diameter of the front end portion of the housing. The front end portion of the housing is welded to the large-diameter portion. | 12-25-2014 |
20140373799 | GLOW PLUG WITH PRESSURE SENSOR - A coupling member ( | 12-25-2014 |
20140368964 | IGNITION SYSTEM - An ignition system including: a first control unit configured to generate a high voltage that is to be supplied to a spark plug at a secondary winding of an ignition coil by applying and then cutting off a primary current to a primary winding of the ignition coil; a second control unit configured to cut off electric power supplied from the secondary winding to the spark plug by energizing the primary winding after the first control unit cuts off the primary current; a re-energizing current measuring unit configured to measure a re-energizing current energizing the primary winding by the second control unit; and an energizing period determining unit configured to determine an energizing period during which the primary current is applied to the primary winding by the first control unit, corresponding to the re-energizing current measured by the re-energizing current measuring unit. | 12-18-2014 |
20140368105 | SPARK PLUG - A spark plug has a metal shell and a ground electrode joined at a base end portion thereof to the metal shell and includes a surface layer and a core higher in thermal conductivity than the surface layer. The surface layer has a thickness of 0.2 to 0.4 mm at a specific position that is located 1 mm from the base end portion. The spark plug satisfies the following condition: W1≧W2×1.55−(W3+0.25) where W1 (mm) is a width of the metal shell at a weld region of the metal shell joined with the base end portion in a specific direction that extends perpendicular to the axis direction through a center line of the ground electrode; W2 (mm) is a thickness of the ground electrode at the specific position in the specific direction; and W3 (mm) is a thickness of the surface layer at the specific position in the specific direction. | 12-18-2014 |
20140361676 | SPARK PLUG - A ground electrode includes a main body portion and a projecting portion having a width smaller than a width of the main body portion. A spark discharge gap is formed between a discharging surface of the projecting portion and a front end surface of a center electrode. When the front end surface and the ground electrode are projected on a first plane, at least a part of the projection region of the projecting portion overlaps the projection region of the front end surface. A width Le (mm), a width Lc (mm), a cross-sectional area Sg (mm | 12-11-2014 |
20140361005 | GLOW PLUG - A glow plug including a coil housed in a tube. The coil includes a heating coil made of an Ni—Cr alloy disposed on a front end side, and a control coil connected to a rear end side of the heating coil. The coil has a normal temperature resistance value of 300 mΩ to 500 mΩ. The accumulated amount of heat generated by the heating coil for two seconds from the start of energization is 400 W or less. The ratio of an inrush current value at the start of energization to a current value two seconds after the start of energization is 1.2 or higher. The control coil has a temperature resistance coefficient of five or higher and a resistance value of 25 mΩ or higher at a portion between a front end of the control coil and L/2, where L is the length of the control coil. | 12-11-2014 |
20140361000 | GLOW PLUG - A contact member ( | 12-11-2014 |
20140353155 | GAS SENSOR ELEMENT AND GAS SENSOR - A cross-sectional shape of a gap of a gas sensor element has an end point A which is one of contact points at which the cross-sectional shape is in single-point contact with a virtual straight line parallel to a lamination direction, the one contact point being closest to one side of the laminated structure, an end point B which is one of the contact points closest to another side of the laminated structure, an end point C having the greatest separation from a straight line AB toward a solid electrolyte ceramic layer, and an end point D having the greatest separation from the straight line AB toward another ceramic layer. The distance H1 between the straight line AB and the end point C and the distance H2 between the straight line AB and the end point D satisfy 0.25≦H1/H2<1.00 or 1.0012-04-2014 |
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20140353024 | WIRING BOARD UNIT, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHOD OF WIRING BOARD WITH LEAD - A wiring board unit includes: a polygonal wiring board having three or more sides in top view, a product insulating part comprising a plurality of external terminals, and a dummy insulating part at an outer edge of one of the at least three sides; and a lead frame including a frame having an inner edge defining an opening within which the wiring board is disposed in top view, and a plurality of leads, one end of each of the plurality of leads connected to the inner edge of the frame and the other end of each of the plurality of leads respectively connected to one of the plurality of external terminals of the wiring board, wherein a connection unit for connecting the frame of the lead frame and the dummy insulating part of the wiring board is arranged therebetween. | 12-04-2014 |
20140352405 | MICROPARTICLE DETECTION SYSTEM - A particulate detection system ( | 12-04-2014 |
20140349209 | FUEL CELL STACK - A fuel cell stack has a first block having a first number of cells, a first fuel supply channel for supplying fuel gas to the first block, a collecting channel for collecting fuel gas which has passed through the first block, a second block having a second number of cells, the second number being smaller than the first number, a second fuel supply channel for supplying the second block with fuel gas which has been collected into the collecting channel, and a discharge channel for discharging fuel gas which has passed through the second block. A throttling section smaller in channel diameter than first and second fuel gas trunk channels, first and second branch channels, the collecting channel, and the discharge channel is provided downstream of the collecting channel and upstream of the second fuel supply channel. | 11-27-2014 |
20140346945 | SPARK PLUG - An ignition plug having a ceramic insulator with an axial bore, a metallic shell provided around the ceramic insulator, and a terminal electrode having a leg portion inserted into a rear end portion of the axial bore and a head portion projecting from the rear end of the ceramic insulator, wherein the length L of a portion of the ceramic insulator projecting from the rear end of the metallic shell is not less than 28 mm but not greater than 34 mm. The thickness t of the thinnest portion of the ceramic insulator is 1.0 mm or greater within a region which extends 5.5 mm from the rear end of the ceramic insulator toward the forward end side with respect to the direction of the axis. | 11-27-2014 |
20140344499 | IN-VEHICLE SENSOR AND IN-VEHICLE SENSOR SYSTEM - An in-vehicle sensor ( | 11-20-2014 |
20140339081 | GAS SENSOR - Disclosed is a gas sensor including a metal shell, a ceramic holder placed in an axial inner hole of the metal shell and a sensor element inserted through an insertion hole of the ceramic holder. The ceramic holder has a recessed hole recessed toward the rear from a front-facing surface of the ceramic holder. The sensor element has, at a front end part thereof, a detection portion covered with a porous protection layer such that a rear end part of the protection layer is accommodated in the recessed hole with a space left therebetween. Further, the ceramic holder has a front circumferential edge defined between an inner circumferential surface of the recessed hole and the front-facing surface of the ceramic holder such that the whole of the front circumferential edge is located radially inside of a radially innermost position of the axial hole. | 11-20-2014 |
20140338424 | GAS SENSOR - Disclosed is a gas sensor having a metal shell, a holder placed in the metal shell and a sensor element inserted through an axial insertion hole of the holder. The holder has a recessed portion recessed toward the rear from a front end face of the holder. The sensor element has, at a front end part thereof, a detection portion covered with a porous protection layer such that a rear end of the porous protection layer is situated within the recessed portion of the holder and is located at the rear side with respect to the front end face of the holder while maintaining a space between an inner circumferential surface of the recessed portion and an outer circumferential surface of the porous protection layer. | 11-20-2014 |
20140336035 | INSULATOR FOR SPARK PLUG AND SPARK PLUG - An insulator for spark plug with a main constituent of alumina and containing silicon includes a grain boundary phase positioned between alumina particles. The grain boundary phase contains: a group 2A element; a rare earth element; and at least one kind of zirconium, titanium, chrome, niobium, manganese, and iron (a first element). Assuming that a total amount of the rare earth element is X (mass %), a total amount of the group 2A element is Y (mass %), and a total amount of the first element is Z (mass %), the following are met: | 11-13-2014 |
20140333195 | SPARK PLUG - A spark plug includes a center electrode, an insulator, a metallic shell, and a ground electrode which has a noble metal tip at the other end portion. A gap is formed between a forward end portion of the center electrode and a discharge surface of the noble metal tip. When an acute angle formed by the forward end surface and the discharge surface is θ1, a point on the forward end surface closest to the noble metal tip is A, opposite ends of the discharge surface are B1 and B2, and an angle formed by a first line segment connecting A and B1 and a second line segment connecting A and B2 is θ2, 35°≦θ1≦55°, 85°≦θ2≦90°, and the difference in length between the first and second line segments is equal to or less than 10% of the longer line segment. | 11-13-2014 |
20140328001 | IGNITION PLUG AND IGNITION SYSTEM - An ignition plug that promotes expansion of flame and enhances spark corrosion resistance, said plug includes a center electrode; a tubular insulator holding the center electrode; a tubular metallic shell holding the insulator; and a ground electrode having a bent portion and a facing end surface. A plurality of peak voltages can be applied to the center electrode after application of a voltage for trigger discharge thereto. When a forward end surface of the center electrode and the facing end surface are projected onto a plane orthogonal to axial direction of the center electrode, the projection of the center of the forward end surface and the projection of the facing end surface overlap with each other, and the projection of a remote-side edge portion of the facing end surface which is located on the side remote from the bent portion is located within the projection of the forward end surface. | 11-06-2014 |
20140326873 | FINE PARTICLE MEASUREMENT SYSTEM - A fine particle measurement system including a primary-side power supply circuit connected to a primary side of an isolation transformer, a control circuit configured to control the primary-side power supply circuit, a first current measurement circuit configured to transmit to the control circuit a first signal indicating a first current that flows from a trapping unit toward a secondary-side reference potential line, and a second current measurement circuit configured to transmit to the control circuit a second signal indicating a second current corresponding to the amount of ions that are not trapped by the trapping unit. The control circuit adjusts the electrical power supplied to the ion generating unit based on the first current and measures the amount of the fine particles in the gas based on the second current. Further, the first current measurement circuit includes an isolation amplifier and amplifies the first signal via the isolation amplifier and transmits the first signal to the control circuit. | 11-06-2014 |
20140326207 | GLOW PLUG AND FABRICATION METHOD FOR SAME - A glow plug ( | 11-06-2014 |
20140318846 | WIRING SUBSTRATE AND METHOD FOR PRODUCING WIRING SUBSTRATE - A wiring substrate includes a layered structure including one or more insulating layers and one or more conductor layers; a plurality of connection terminals formed on the layered structure; a first resin layer formed on the layered structure and having (defining) a plurality of first openings through which the connection terminals are respectively exposed; and a second resin layer formed on the first resin layer and having (defining) a plurality of second openings through which the connection terminals are respectively exposed and which are smaller in opening diameter than the first openings, wherein the second resin layer has, around each of the second openings, an inclined surface which is formed such that the distance between the inclined surface and the layered structure decreases toward the second opening. | 10-30-2014 |
20140318228 | TEMPERATURE SENSOR - A temperature sensor ( | 10-30-2014 |
20140305188 | GAS SENSOR - A protector ( | 10-16-2014 |
20140299983 | JOINT STRUCTURE AND SEMICONDUCTOR DEVICE STORAGE PACKAGE - A joint structure includes: a ceramic member; a metallized layer formed on a surface of the ceramic member; and a metal member joined to the metallized layer via a brazing material. The metal member includes a base part erected on the metallized layer, and an extended part extended from the base part to define a predetermined gap with respect to the metallized layer. The base part includes an end joined to the metallized layer by a brazing material layer including the brazing material, and a side joined to the metallized layer around the base part by a fillet including the brazing material formed on the metallized layer around the base part. The extended part defines a recess at a position facing the metallized layer on which the fillet is formed. | 10-09-2014 |
20140299469 | SENSOR - A sensor including: a detection element; terminal members; and a separator, wherein at least one specific first electrode terminal portion and an other first electrode terminal portion are formed on a first main surface of the detection element, wherein a second electrode terminal portion formed on a second main surface of the detection element is disposed so as to be offset from the specific first electrode terminal portion and to overlap with the other first electrode terminal portion in the axial direction, and in a thickness direction, a distance between the detection element and a specific first frame body portion brought into electrical connection with the specific first electrode terminal portion is larger than a distance between the detection element and the other first frame body portion brought into electrical connection with the other first electrode portion. | 10-09-2014 |
20140298931 | SENSOR AND TERMINAL MEMBER - A sensor includes a detection element; a plurality of terminal members, each of the terminal members including an elongated frame body portion extending along the axial direction, an element contact portion in elastic contact with an electrode terminal, and a folded portion connecting the frame body portion and the element contact portion; and a separator. The element contact portion of each of the terminal members has a turning portion which turns inward with respect to the width direction between the folded portion and a contact portion in contact with an electrode terminal. In those two of the terminal members which are adjacent to each other along the width direction, the distance along the width direction between the contact portions is smaller than the distance along the width direction between the frame body portions. | 10-09-2014 |
20140295308 | FUEL CELL STACK - A fuel cell stack ( | 10-02-2014 |
20140293559 | WIRING BOARD - A wiring board has a surface formed with a chip mounting area to which a chip component is mounted and includes embedded therein first and second multilayer capacitors, each of which has inner electrode layers laminated in a lamination direction. The first multilayer capacitors are embedded in a peripheral region of the wiring board immediately below a peripheral edge of the chip mounting area and a vicinity of the peripheral edge of the chip mounting area such that the lamination direction of the inner electrode layers of the first multilayer capacitors is perpendicular to the surface of the wiring board. The second multilayer capacitors are embedded in any other regions of the wiring board inside and outside the peripheral region such that the lamination direction of the inner electrode layers of at least one of the second multilayer capacitors is parallel to the surface of the wiring board. | 10-02-2014 |
20140291410 | SENSOR TEMPERATURE CONTROL APPARATUS - A sensor temperature control apparatus ( | 10-02-2014 |
20140291150 | GAS SENSOR ELEMENT, AND GAS SENSOR - A gas sensor element ( | 10-02-2014 |
20140290347 | SENSOR CONTROL APPARATUS, SENSOR CONTROL SYSTEM, AND SENSOR CONTROL METHOD - A sensor control apparatus which receives from a gas sensor ( | 10-02-2014 |
20140290337 | SENSOR CONTROL APPARATUS AND GAS DETECTION SYSTEM - A sensor control apparatus ( | 10-02-2014 |
20140266567 | THERMISTOR ELEMENT, TEMPERATURE SENSOR, AND METHOD FOR MANUFACTURING THE THERMISTOR ELEMENT - A thermistor element includes a thermistor main body having a rectangular parallelepiped shape, and a first covering layer having reduction resistance and covering the periphery of the thermistor main body. At least a portion (exposed outer surface) of the outer surface of the first covering layer is exposed to the outside. When the shortest distance in a straight line in the first covering layer extending from a starting point on the thermistor main body to the exposed outer surface is defined as an exposed layer thickness at the starting point, the first covering layer is formed such that an exposed layer thickness measured by using any vertex of the rectangular parallelepiped thermistor main body as a starting point is equal to or greater than the smallest one of exposed layer thicknesses measured by using points on three sides and three flat surfaces which form the vertex. | 09-18-2014 |
20140265817 | SPARK PLUG - A spark plug including a ceramic insulator having an axial hole, a center electrode inserted into the axial hole, a metallic shell provided around the insulator, a ground electrode fixed to the metallic shell, and a tip joined to a distal end portion of the ground electrode and forming a spark discharge gap between the tip and a forward end portion of the center electrode. The ground electrode includes an outer layer and an inner layer provided inside the outer layer and formed of a metal containing copper as a main component. The tip is joined to the ground electrode by a fusion portion containing a metal forming the tip and a metal forming the outer layer. The fusion portion is in contact with the inner layer and contains copper. The spark plug efficiently conducts heat from the tip to the inner layer to improve corrosion resistance of the tip. | 09-18-2014 |
20140260531 | GAS SENSOR - A gas sensor includes a sensor element having electrode take-out portions; a tubular separator having a flange portion, surrounding the electrode take-out portions, and spaced from a metallic shell; a tubular outer sleeve covering the separator, connected to the metallic shell, and having an inward convex portion that contacts the rearward-facing surface of the separator and restricts rearward movement of the separator; a seal member disposed on the rear of the separator and accommodated in a rear portion of the outer sleeve such that it is spaced from the separator; and an annular retainer fixed to the outer sleeve and in contact with a contact surface which forms at least a portion of the forward-facing surface of the flange portion. The separator has a rotation restriction surface for restricting its rotation in the circumferential direction, and the retainer has an engagement surface which contacts the rotation restriction surface. | 09-18-2014 |
20140255668 | RESIN JOINED BODY AND METHOD FOR MANUFACTURING SAME - A method for producing a resin joined body in which a specific region L1 of a welding portion of a second resin member ( | 09-11-2014 |
20140243184 | INSULATOR AND SPARK PLUG - An insulator used in a spark plug having improved strength and dielectric strength performance. The insulator comprises a sintered compact whose main constituent is alumina. In the sintered compact, a content ratio of a rare earth element (R. E.) and a group 2 element (2A) satisfies 0.1≦R. E./2A≦1.4, and the content ratio of the R. E. and barium oxide (BaO) satisfies 0.2≦BaO/R. E.≦0.8. At least one virtual rectangular frame of 7.5 μm×50 μm surrounding crystals containing the rare earth element lies within a region of 630 μm×480 μm in any cross section of the sintered compact. | 08-28-2014 |
20140242383 | CERAMIC SINTERED BODY - A ceramic sintered body includes tungsten carbide, zirconia, and alumina. The content of the tungsten carbide is 20 to 50 vol %, and the content of the zirconia is 5 to 25 vol %. The crystal phase of the zirconia is a tetragonal crystal or a mixture of tetragonal and monoclinic crystals. The ceramic sintered body does not substantially include Ti compounds. The average particle diameter of the tungsten carbide, the average particle diameter of the zirconia, and the average particle diameter of the alumina are all 1 μm or less. | 08-28-2014 |
20140239798 | IGNITION PLUG - An ignition plug having enhanced seal performance, while suppressing deformation of a metallic shell thereof. The ignition plug includes a metallic shell having a crimp portion, a male screw portion, a seat portion, and a bent portion. The bent portion has a largest outer diameter (OD) portion, and first and second smallest OD portions, wherein 0.01≦(L | 08-28-2014 |
20140239797 | SPARK PLUG - A spark plug having a center electrode, a ground electrode, and a ground electrode side tip. The tip partially projects from a front end face and an inner circumference-side side surface of the ground electrode. The ground electrode has a center of the front end face. The center is located at a front end side in a direction of the axis with respect to a front end of the center electrode. L/X≦1.28 is satisfied, where L (mm) represents a length of the ground electrode along a central axis of the ground electrode and X (mm) represents a projection length of the ground electrode relative to a metallic shell. 8.4≦(S1/S2)/A is satisfied, where S1 (mm | 08-28-2014 |
20140238973 | HEATER CONTROL METHOD AND HEATER CONTROL APPARATUS FOR GAS SENSOR - A heater control method and apparatus for a gas sensor which can quickly activate a detection element while reducing load due to heating even when a higher power supply voltage is applied. A heater element is connected to a power supply whose voltage is higher than 16 V, and power is supplied under PWM control such that a temperature rise of the heater element follows a temperature rise curve obtained when a voltage of 12 V is applied to the heater element. Even though a higher voltage is applied, the temperature rise per unit time during the ON time of the PWM control is decreased. This is because the ON time per cycle is shortened by increasing the PWM frequency to 30 Hz or higher. Thus, the temperature rise per cycle is kept low, whereby the temperature rise per 0.1 second is rendered less than 25° C. | 08-28-2014 |
20140238853 | GAS SENSOR CONTROL APPARATUS AND GAS SENSOR SYSTEM - A gas sensor control apparatus for controlling a gas sensor element, the gas sensor element including first and second measuring chambers and the gas sensor control apparatus including first chamber control unit for controlling an oxygen concentration in the first chamber; second chamber control unit for applying a second chamber pump voltage to disassociate an oxygen-containing specific gas contained in the second chamber and thereby generate a concentration-dependent current; current detecting unit; voltage changing unit for changing the second chamber pump voltage; and deterioration determination unit for determining the deterioration state of the gas sensor element based on a transient response of the concentration-dependent current. | 08-28-2014 |
20140235514 | LUBRICATING COATING COMPOSITION AND ATTACHMENT COMPONENT FOR INTERNAL COMBUSTION ENGINE - A solid coating film ( | 08-21-2014 |
20140217608 | SEMICONDUCTOR MODULE, CIRCUIT BOARD - An improvement in the manufacturing efficiency of a circuit substrate and a semiconductor module where a semiconductor device including electrodes on a front and a back surface is mounted. | 08-07-2014 |
20140216796 | MULTILAYER WIRING SUBSTRATE - To provide a multilayer wiring board that ensures sufficient close contact strength between a conformal type conductor and a resin insulating layer. A multilayer wiring board includes a multilayered construction where a plurality of resin insulating layers and a plurality of conductor layers are alternately layered. In each of a plurality of via holes formed in the resin insulating layers, a conformal via conductor is formed to electrically connect between the conductor layers. Filling up parts of the resin insulating layers layered at upper layer side inside of the conformal via conductor forms an anchor portion. The lower end side of the anchor portion bulges larger than the upper end side in the radially outward direction of the via hole. | 08-07-2014 |
20140215782 | MULTILAYER WIRING SUBSTRATE, AND METHOD OF MANUFACTURING THE SAME - A plurality of openings are formed in a resin insulation layer on a top surface side of a wiring laminate portion, and a plurality of openings are formed in a resin insulation layer on a bottom surface side thereof. A plurality of connection terminals are disposed to correspond to the openings. Peripheral portions of terminal outer surfaces of the connection terminals are covered by the resin insulation layer on the top surface side, and peripheral portions of terminal outer surfaces of the connection terminals are covered by the resin insulation layer on the bottom surface side. Each of the second-main-surface-side connection terminals has a concave portion at the center of the terminal outer surface, and the deepest portion of the concave portion is located on the interior side in relation to the peripheral portion of the terminal outer surface. | 08-07-2014 |
20140212784 | SOLID OXIDE FUEL CELL AND INTER-CONNECTOR - A solid oxide fuel cell includes a fuel cell body and an inter-connector. The inter-connector has a base portion and a plurality of projecting portions projecting from the base portion toward the fuel cell body and electrically connected to the fuel cell body, and is integrally formed from a metallic material. Each of the projecting portions has a contour composed of a pair of linear portions which are disposed parallel to each other and each of which includes a straight line, and a pair of curved portions which connect opposite ends of the linear portions. | 07-31-2014 |
20140210336 | IGNITION PLUG AND METHOD OF MANUFACTURING THE SAME - An ignition plug that reliably restrains generation of corona discharge for enhancing accuracy in detection of ionic current and method of manufacturing same. The ignition plug is configured such that a metallic shell and an insulator are fixed together by means of a crimped portion provided at a rear end portion of the metallic shell and bent radially inward. An electrically insulative filling member fills a space formed between the crimped portion and the insulator. The filling member covers at least a portion of an outer circumferential surface of a rear trunk portion of the insulator along the entire circumference and the entirety of a rear end surface of the metallic shell, which is a portion of the outer surface of the crimped portion and is visible from the rear side with respect to the direction of an axial line CL | 07-31-2014 |
20140210335 | SPARK PLUG - A spark plug includes: a center electrode including a rod portion and a head portion and having a diameter larger than the diameter of the rod portion; an insulator having an axial bore, the center electrode being disposed in the axial bore at its front end; and a seal portion for fixing the center electrode in the axial bore. The insulator comprises: a leg portion inner circumferential surface; a cylindrical trunk portion inner circumferential surface which surrounds the head portion; and a support surface which supports the head portion. The seal portion has: a seal portion outer circumferential surface; a seal portion abutment surface; and a connecting surface. In a cross section of the seal portion, a curve, which is part of the contour of the seal portion and is included in the connecting surface, has a radius of curvature R of 0.1 mm or more. | 07-31-2014 |
20140204198 | INSPECTION DEVICE FOR ARTICLE BEING INSPECTED, SPARK PLUG INSPECTION METHOD, AND METHOD FOR MANUFACTURING SPARK PLUG - A spark plug is held by a work holder, and an illumination device is disposed between a rear end surface of a metal terminal of the spark plug and a lens of a CCD camera. The positional relationship among the rear end surface, the lens and a light source is determined such that regular reflected light resulting from regular reflection of irradiation light emitted from the light source and impinging on the rear end surface is not incident on the lens. In capturing an image of the rear end surface not only is the regular reflected light not incident on the lens, but also the incidence, on the lens of irregular reflected light resulting from irregularities on the rear end surface is reduced, whereby interference of reflected light with a captured image can be reduced. | 07-24-2014 |
20140202740 | Method of Manufacturing Multilayer Wiring Substrate, and Multilayer Wiring Substrate - In a build-up step, a plurality of resin insulation layers and a plurality of conductive layers are alternately laminated in multilayer arrangement on a metal foil separably laminated on a side of a base material, thereby forming a wiring laminate portion. In a drilling step, a plurality of openings are formed in an outermost resin insulation layer through laser drilling so as to expose connection terminals. Subsequently, in a desmear step, smears from inside the openings are removed. In a base-material removing step performed after the build-up step, the base material is removed and the metal foil is exposed. | 07-24-2014 |
20140194026 | MANUFACTURING METHOD OF MAIN METAL FITTING FOR SPARK PLUG AND MANUFACTURING METHOD OF SPARK PLUG - A metallic shell extends in the direction of an axial line and has a threaded portion on its outer circumferential surface for threading engagement with a mounting hole of a combustion apparatus. A process of manufacturing the metallic shell includes a step of forming a metallic shell tubular intermediate having the first tubular portion and the second tubular portion and a rolling step of forming the threaded portion on the metallic shell tubular intermediate. In the rolling step, a bearing member is inserted into the metallic shell tubular intermediate for nipping the metallic shell tubular intermediate in cooperation with working surfaces of the rolling dies, and rolling is performed simultaneously on at least the first tubular portion and the second tubular portion. | 07-10-2014 |
20140190828 | GAS SENSOR ELEMENT AND GAS SENSOR - A first electrode ( | 07-10-2014 |
20140190827 | GAS SENSOR ELEMENT AND GAS SENSOR - A gas sensor element which has water-permeable electrodes, and water-impermeable leads connected to the electrodes A first electrode ( | 07-10-2014 |
20140190149 | AIR-FUEL RATIO CONTROL APPARATUS - When an internal combustion engine ( | 07-10-2014 |
20140175967 | SPARK PLUG - A spark plug has a center electrode having an electrode base member and a core material which is disposed in the electrode base member and which predominantly contains copper, and a noble metal tip disposed at a forward end of the center electrode, and a fusion portion formed between the noble metal tip, and the electrode base member and the core material. The fusion portion is in contact with the core material in a cross section which is parallel to the center axis of the center electrode and which passes through the center axis and the fusion portion. The fusion portion contains a component of the noble metal tip, a component of the electrode base member, and a copper component forming the core material. | 06-26-2014 |
20140175705 | MANUFACTURING METHOD FOR SUBSTRATE - A method for manufacturing a substrate includes manufacturing a substrate with an identifying mark having a plurality of elements, the substrate having a laminated construction including a plurality of resin insulating layers. The method includes the steps of: forming a first element of the identifying mark by irradiating the substrate with a laser to create a first plurality of projections in parallel at equal intervals; and forming another element of the identifying mark by irradiating the substrate with a laser to create a second plurality of projections in parallel at equal intervals that do not overlap the first plurality of projections. | 06-26-2014 |
20140170522 | FUEL CELL AND FUEL CELL STACK - A fuel cell includes a pair of interconnectors (ICs); a cell main body provided between the ICs and including an electrolyte, a cathode and an anode formed on respective surfaces of the electrolyte; and a current collection member provided between at least one of the cathode and the anode and the IC for electrically connecting the cathode and/or the anode and the IC. The current collection member has a connector abutment portion which abuts the IC, a cell main body abutment portion abutting the cell main body, and a connection portion connecting the connector abutment portion and the cell main body abutment portion, the portions being continuously formed. Between the cell main body and the IC, a spacer is provided so as to separate the connector abutment portion and the cell main body abutment portion. | 06-19-2014 |
20140167595 | IGNITION PLUG - An ignition plug includes a ceramic insulator having an axial bore, a metallic shell, and a terminal electrode. The terminal electrode has a leg portion inserted into a rear side of the axial bore, and a head portion formed on a rear side of the leg portion and having an outside diameter greater than that of the leg portion. The insulator includes a rear trunk portion exposed from the rear end of the metallic shell, which has a maximum outside diameter of 9.5 mm or less. The insulator has an end-surface seat portion located forward of its rear end and being in contact with the forward end surface of the head portion, and an outer circumferential portion into which at least a forward end portion of the head portion is inserted and which is located externally of the outer circumference of the head portion. | 06-19-2014 |
20140166349 | CERAMIC SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A ceramic substrate is provided that includes a ceramic substrate main body having a principal surface, and a connecting terminal portion disposed on the principal surface of the ceramic substrate main body that is capable of being connected to another component via solder. The connecting terminal portion includes a copper layer and a coating metal layer covering a surface of the copper layer. The ceramic substrate includes a contact layer disposed between the ceramic substrate main body and the copper layer. The contact layer includes one of a nickel-chromium alloy, chromium, molybdenum, and palladium, and is set back from a side surface of the copper layer in a substrate plane direction. | 06-19-2014 |
20140166346 | CERAMIC SUBSTRATE, AND METHOD OF MANUFACTURING THE SAME - A ceramic substrate is provided that includes a ceramic substrate main body including a principal surface, a connecting terminal portion disposed on the principal surface of the ceramic substrate main body that is capable of being connected to another component via solder, the connecting terminal portion including a copper layer and a coating metal layer covering a surface of the copper layer; a contact layer of titanium or chromium disposed between the ceramic substrate main body and the connecting terminal portion; and an intermediate layer disposed between the copper layer of the connecting terminal portion and the contact layer, the intermediate layer including one of a titanium-tungsten alloy, a nickel-chromium alloy, tungsten, palladium, and molybdenum. The contact layer and the intermediate layer are set back from a side surface of the copper layer in a substrate plane direction. | 06-19-2014 |
20140159564 | SPARK PLUG - A spark plug having a center electrode; a ground electrode provided so as to form a gap between the ground electrode and the center electrode; and a tip provided on at least one of a distal end portion of the ground electrode and a front end portion of the center electrode, the end portions facing each other, characterized in that the tip contains an element group M (M consists of at least one species of Pt and Rh) in an amount of 3 mass % to 35 mass %, and an element group L (L consists of at least one species of Ir, Ru, and Pd) in an amount of 0 mass % to 15 mass %; the total amount of the element group M and the element group L is at most 35 mass %; and the total amount of Ni, the element group M, and the element group L is at least 94 mass %. | 06-12-2014 |
20140152170 | SPARK PLUG - An object is to provide a technique for improving welding strength between an intermediate member and an electrode member. In a section of a spark plug cut by a plane which passes through the center of gravity of the intermediate member and is in parallel with the facing direction between a center electrode and an extending portion of a ground electrode, the spark plug satisfies the relational expression S1/(D1×H1)≧0.005, where S1 is the total area of nuggets, H1 is the height of the end surface of a noble metal tip from the disposition surface of an electrode base metal, and D1 is the maximum width of the noble metal tip. | 06-05-2014 |
20140152169 | SPARK PLUG - A spark plug includes a center electrode a ceramic insulator provided with an axial hole, a metal shell, and a ground electrode having a facing surface that faces a leading end surface of the center electrode. An annular space is formed between an outer peripheral surface of the center electrode and an inner peripheral surface of the axial hole and is opened toward a leading end side, and when C (mm) is a distance between the outer peripheral surface of the center electrode and the inner peripheral surface of the axial hole in the opening of the annular space, C≧0.2 mm is satisfied. In a cross-section which includes the axial line and is orthogonal to the center axis of the ground electrode, a contour line of lateral surfaces of the ground electrode has a curved shape convexed outward. | 06-05-2014 |
20140145624 | IGNITION SYSTEM - An ignition system includes an ignition plug, a discharge power supply for applying a high voltage to the gap of the ignition plug, a high-frequency power supply for supplying a high-frequency current to the gap, a matching unit provided between the ignition plug and the high-frequency power supply, and a mixer through which currents output from the two power supplies flow. An oscillation frequency fs (Hz) which maximizes the current flowing between the matching unit and the mixer when spark discharge is generated and an oscillation frequency fo (Hz) which maximizes the current flowing between the matching unit and the mixer when spark discharge is not generated satisfy a relation fs/fo≧0.85. Thus, a current whose oscillation frequency is equal to the oscillation frequency fs flows between the matching unit and the mixer when spark discharge is not generated. | 05-29-2014 |
20140145583 | SPARK PLUG - A spark plug includes a metal shell and a gasket. The metal shell includes a thread portion, a seat portion, and a thread root portion. The gasket has an inner diameter smaller than a thread size of the thread portion. The relationships 0.8L≦C≦L−2A and B≦0.75L are satisfied in a case where: in the seat portion, an outer diameter of a seating portion is L (mm); the maximum value of a relatively shiftable distance is A (mm), the gasket is shiftable along a direction orthogonal to the axis relative to the metal shell by the maximum value; in the gasket, an outer diameter is C (mm); and in the gasket, an inner diameter is B (mm). | 05-29-2014 |
20140145405 | SPARK PLUG - Provided is a technique which realizes securement of gas-tightness and suppression of loosening of a gasket. A spark plug includes a tubular metallic shell extending in an axial direction, and an annular gasket provided around the metallic shell. The gasket is solid and contains copper as a main component and nickel in an amount of 0.1 wt. % or more. The gasket has a maximum thickness of 0.4 mm or more in the axial direction, and the gasket has a Vickers hardness of 30 HV to 150 HV. | 05-29-2014 |
20140144777 | GAS SENSOR - A gas sensor according to the present invention includes a sensor element made of a solid electrolyte and having at least a cylindrical portion arranged coaxially with an axis of the sensor element and a front end portion closing a front end of the cylindrical portion and a heater formed into either a cylindrical shape or a cylindrical column shape and located inside the sensor element to heat the sensor element by heat generation thereof, wherein a front end portion of the heater is in contact with an inner surface of the front end portion of the sensor element; and wherein a lateral portion of the heater is in contact with an inner circumferential surface of the cylindrical portion of the sensor element. | 05-29-2014 |
20140141680 | METHOD FOR INSPECTING SPARK PLUG AND METHOD FOR MANUFACTURING SPARK PLUG - A method for inspecting a spark plug that includes a tubular insulator having an axial hole, a center electrode inserted into the axial hole at a front end side thereof, a tubular metallic shell disposed around the insulator, an annular space defined by an outer circumferential surface of the insulator, and an inner circumferential surface of the metallic shell and opened frontward. The method includes steps of: inspecting insulation performance of the insulator based on whether dielectric breakdown is caused in the insulator when a voltage is applied to the center electrode; photographing an area including at least the center electrode, the insulator, and the annular space from a front end side in the direction of the axis when the voltage is applied to the center electrode; and determining whether the dielectric breakdown has occurred based on the photographed image. | 05-22-2014 |
20140141679 | METHOD OF MANUFACTURING SPARK PLUG - A method for manufacturing a spark plug includes: a preparation step of preparing a specimen provided with a center electrode, an insulator, a metal shell, and a ground electrode; and an inspection step of applying a predetermined voltage between the ground electrode and the center electrode of the prepared specimen, and determining whether dielectric breakdown is caused in the insulator. The inspection step includes a calculation step and a judgment step. The calculation step involves receiving an oscillating wave generated from the specimen upon application of the predetermined voltage to the specimen, obtaining a power spectrum by subjecting an oscillating wave signal representing the oscillating wave to fast Fourier transform, and then calculating an integral of a predetermined frequency range in the power spectrum. In the judgment step, whether discharge is caused by dielectric breakdown of the insulator is judged by utilizing the integral. | 05-22-2014 |
20140139098 | SPARK PLUG - A spark plug includes a center electrode, a ground electrode, and a tip joined to the center electrode and forming a spark discharge gap with the ground electrode. The tip is joined to the center electrode via a fusion zone, which has an exposed surface exposed to the external environment. In a section containing an axis and the center of the exposed surface, C−B≧0.02 is satisfied, where C (mm) is the distance on the side surface of the tip between the fusion zone and the distal end of the tip, and B (mm) is the distance between a distal end surface of the tip and a portion of the fusion zone located closer to the axis than the side surface of the tip and located closest in the fusion zone to the distal end surface of the tip. | 05-22-2014 |
20140139070 | LEAD-FREE PIEZOELECTRIC CERAMIC COMPOSITION, METHOD FOR PRODUCING SAME, PIEZOELECTRIC ELEMENT USING LEAD-FREE PIEZOELECTRIC CERAMIC COMPOSITION, ULTRASONIC PROCESSING MACHINE, ULTRASONIC DRIVE DEVICE, AND SENSING DEVICE - A lead-free piezoelectric ceramic composition mainly includes a first crystal phase (KNN phase) and a second crystal phase (NTK phase). In the first crystal phase (KNN phase), a plurality of crystal grains formed of an alkali niobate/tantalate perovskite oxide having piezoelectric characteristics is bound to each other in a deposited state. The second crystal phase (NTK phase) is formed of a compound containing titanium (Ti) and fills spaces between the crystal grains in the first crystal phase. | 05-22-2014 |
20140138850 | SEMICONDUCTOR POWER MODULE, PRODUCTION METHOD OF SEMICONDUCTOR POWER MODULE AND CIRCUIT BOARD - A semiconductor power module ( | 05-22-2014 |
20140138245 | GAS SENSOR - A protector includes an inside protector having an inside peripheral wall and a front end wall in a front end side thereof and a tubular outside protector which surrounds the inside protector. In an outside peripheral wall of the outside protector, a plurality of outside introducing ports through which an external part of the outside protector communicates with a gas separating chamber are formed at equal intervals along a circumferential direction. The outside introducing ports are formed at positions nearer to the front end side than positions where inside introducing ports of the inside protector are formed. The outside introducing ports extend in the circumferential direction of the outside peripheral wall and formed in shapes of lateral holes in which opening lengths in the circumferential direction are larger than opening lengths in the direction perpendicular to the circumferential direction. | 05-22-2014 |
20140136136 | NOX DETECTION APPARATUS AND NOX SENSOR SYSTEM | 05-15-2014 |
20140131200 | NOX DETECTION APPARATUS AND NOX SENSOR SYSTEM | 05-15-2014 |
20140124242 | WIRING SUBSTRATE - A wiring substrate according to the present invention includes a laminate of one or more insulation layers and one or more conductive layers and further includes a plurality of connection terminals formed on the laminate and spaced apart from one another, each having a step formed at the outer periphery of a first main surface opposite a contact surface in contact with the laminate, and a filling member provided in a filling manner between the connection terminals. | 05-08-2014 |
20140121851 | HEATER CONTROL APPARATUS AND SENSOR CONTROL SYSTEM - A heater control apparatus (1) includes a heater driver ( | 05-01-2014 |
20140117991 | GLOW PLUG INSPECTING METHOD, GLOW PLUG MANUFACTURING METHOD, SHEATHED HEATER INSPECTING METHOD, AND SHEATHED HEATER MANUFACTURING METHOD - A method of inspecting a glow plug including an inner conductor and an outer disposed member, where the inner conductor includes an electrically conductive heating unit and an energization member to provide an energization path to the heating unit, and the outer disposed member includes a housing for the heating unit and a metal tubular member disposed on an outer periphery of the energization member. The method includes inspecting for the presence of short circuit abnormality based on a value that varies in response to a current that flows through the inner conductor upon application of a high voltage higher than a voltage applied during normal use of the glow plug to the inner conductor for a time short enough to suppress a temperature rise of the inner conductor due to application of the high voltage. | 05-01-2014 |
20140117833 | SPARK PLUG - A spark plug includes a metal shell, a ground electrode joined to a front end portion of the metal shell and a nickel layer formed on the ground electrode, wherein the ground electrode has a base material exposed region in which a base material of the ground electrode is exposed; and wherein the nickel layer includes an outer-lateral-side nickel layer located on an outer lateral surface of the ground electrode at a position adjacent to the base material exposed region and satisfies a condition of LA≧25 μm, where LA is a length from a first part of the outer-lateral-side nickel layer having a thickness equal to 80% of a maximum thickness of the outer-lateral-side nickel layer to a second part of the outer-lateral-side nickel layer having a thickness equal to 20% of the maximum thickness of the outer-lateral-side nickel layer in a longitudinal direction of the ground electrode. | 05-01-2014 |
20140111079 | SPARK PLUG - In a spark plug, at least one of a center electrode and a ground electrode has a cover portion and a core portion having a different thermal expansion coefficient. The core portion has a concave portion and a convex portion formed at a front end thereof. The convex portion is such that, in a cross section passing through a barycenter of a front surface of the electrode and also passing through the convex portion, an area of the convex portion delimited by a line perpendicular to a bisector of the convex portion and passing through a point 0.2 mm shifted from a front end of the convex portion in the direction of the bisector is smaller than an area of a triangle formed by connecting the front end of the convex portion and intersections of the line perpendicular to the bisector and a contour of the convex portion. | 04-24-2014 |
20140097739 | SPARK PLUG - In a spark plug, at least either of a center electrode and a ground electrode has a tip which defines a gap, a tip provided on at least either of a center electrode and a ground electrode contains Ir, Rh and Ru in a total amount of 95 mass % or more with respect to the whole mass amount thereof, and the contents (Rh, Ru) of Rh and Ru (mass %) lie within an area which is surrounded by a line which connects point A (6, 1), point B (6, 15), point C (33, 18), point D (33, 4) and the point A (6, 1) in this order or lie on the line. The tip satisfies 1.5≦Has/Han≦2.2. | 04-10-2014 |
20140097007 | WIRING SUBSTRATE AND METHOD FOR PRODUCING THE SAME - Embodiments of the present wiring substrate include a stacked body including one or more insulation layers and one or more conductive layers, wherein the wiring substrate has a plurality of connection terminals formed on the stacked body, each connection terminal has a top surface whose area is smaller than that of each of opposite side surfaces thereof, and a filling member provided in a filling manner between the connection terminals. The top surface of each connection terminal has an area larger than that of a portion of each side surfaces portion exposed from the filling member, and a bonding layer containing a solder is formed on the top surface. | 04-10-2014 |
20140092940 | TEMPERATURE SENSOR - A temperature sensor includes a pair of element electrode wires extending rearward from a temperature-sensing portion. A pair of second electrode wires are welded to the element s electrode wires, and made of a kind of metal having a different thermal expansion coefficient than the element electrode wires. Each second electrode wire includes an overlap section overlapping with an overlap section of the corresponding element electrode wire over an overlap region in a longitudinal direction in which the overlap sections of the each second electrode wire and element electrode wire extend longitudinally. The overlap section of each second electrode wire is welded to the overlap section of the corresponding element electrode wire at weld zones arranged in the longitudinal direction, which include: one at a front-side end of the overlap region; and another at a rear-side end of the overlap region. | 04-03-2014 |