Hiroki Masuda
Hiroki Masuda, Tokyo JP
Patent application number | Description | Published |
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20100328617 | FLUORESCENT WHEEL, LIGHT SOURCE DEVICE AND PROJECTOR - A fluorescent wheel comprising a base with a reflective surface and a flat bottom surface, and a fluorescent layer disposed on the reflective surface of the base such that the reflective surface of the base directs, outward from the wheel, fluorescence emitted from the fluorescent layer due to its excitation by exciting light. The reflective surface of the base has an array of minute reflective structures formed thereon so as to reflect, outward from the reflective surface, fluorescence emitted substantially parallel to the flat bottom surface of the base from the fluorescent layer. | 12-30-2010 |
20100328628 | LIGHT SOURCE UNIT AND PROJECTOR - A light source unit comprising an optical wheel having a plurality of segment areas and including luminescent light emitting areas where at least two luminescent material layers having different characteristics are provided in a circumferential direction, a wheel motor for driving to rotate the optical wheel, an excitation light source for shining light on to the optical wheel, a light emitting light source and a collective optical system for collecting a light beam from the optical wheel and a light beam from the light emitting light source to the same optical path, wherein the excitation light source is selectively turned on to illuminate the at least two luminescent material layers having different characteristics which are disposed on the luminescent light emitting areas, and wherein the light emitting light source is turned on for a period of time during which the excitation light source does not shine the excitation light. | 12-30-2010 |
20110051102 | LIGHT SOURCE UNIT AND PROJECTOR - With a view to providing a light source unit which can emit light source light of high luminance and high intensity even in the small quantity of excitation light, there is provided a light source unit including an excitation light source for emitting light in a blue wavelength band, a fluorescent wheel, a light emitting device for emitting light in a red wavelength band and a light guiding optical system for guiding light emitted from the fluorescent wheel and the light emitting device to a light guiding device, wherein the fluorescent wheel is made up of a fluorescent area where a green fluorescent material layer for emitting fluorescent light in a green wavelength band is disposed and a diffuse area for converting light emitted from the excitation light source into diffuse light of which directivity is weak are disposed end to end in a circumferential direction, and wherein the green fluorescent material layer is such that a concentration of weight content of the green fluorescent material in the green fluorescent material layer relative to the fluorescent material layer and a thickness thereof are determined so that a luminescent intensity of fluorescent light emitted from the green fluorescent material layer is enhanced. | 03-03-2011 |
20110096297 | LIGHT SOURCE UNIT AND PROJECTOR - There is provided a light source unit comprising an excitation light shining device for emitting excitation light, a luminescent plate having a luminescent light emitting area on a base material and adapted to emit a luminescent light of a predetermined wavelength band by excitation light from the excitation shining device, two types of light source devices for emitting light of wavelength bands different from that of the light from the luminescent plate, a light guiding optical system for guiding the light from the luminescent plate and the rays from the light sources to a predetermined plane, and a light source control device for controlling the emission from the excitation light shining device and the light sources, wherein a synthetic light or a single-color light are emitted by controlling the emissions from the excitation light shining device and the light sources by the light source control device. | 04-28-2011 |
20120075591 | LIGHT SOURCE UNIT AND PROJECTOR - A light source unit includes an excitation light source and a luminescent wheel on which luminescent light emitting areas including, on a reflecting surface, red and green luminescent materials which respectively emit light of red and green wavelength band, when receiving excitation light, and a diffuse transmission area which diffuses and transmits excitation light, are aligned end to end in a circumferential direction. An excitation light incident surface of a luminescent material layer of the luminescent wheel has a surface with a plurality of projecting bodies. Regular quadrangular pyramids are arranged thereon in a matrix with outer boundaries of bottom portions of adjacent regular quadrangular pyramids contacting each other. The pyramids rise at a rising angle of at least 30°, and a length of one side of an outer boundary of the bottom portion of the pyramid is between 10 and 100 μm. | 03-29-2012 |
20120140185 | LIGHT SOURCE UNIT AND PROJECTOR - A projector is provided which includes a light source unit which can reduce the numbers of lenses and mirrors and which can control quantity of light of each color. | 06-07-2012 |
20120262677 | LIGHT SOURCE UNIT AND PROJECTOR - There is provided a light source unit comprising an excitation light shining device for emitting excitation light, a luminescent plate having a luminescent light emitting area on a base material and adapted to emit a luminescent light of a predetermined wavelength band by excitation light from the excitation shining device, two types of light source devices for emitting light of wavelength bands different from that of the light from the luminescent plate, a light guiding optical system for guiding the light from the luminescent plate and the rays from the light sources to a predetermined plane, and a light source control device for controlling the emission from the excitation light shining device and the light sources, wherein a synthetic light or a single-color light are emitted by controlling the emissions from the excitation light shining device and the light sources by the light source control device. | 10-18-2012 |
20130293850 | PROJECTOR HAVING LIGHT SOURCE UNIT INCLUDING EXCITATION LIGHT SOURCE, OPTICAL WHEEL, LIGHT EMITTING LIGHT SOURCE, AND CONTROLLER - A light source unit includes an optical wheel having a plurality of segment areas, the segment areas including at least two luminescent material layers having different characteristics and a transmission portion provided in a circumferential direction. The light source unit further includes a rotation driving unit for driving to rotate the optical wheel, an excitation light source for shining light onto the optical wheel, a light emitting element, and a light guiding optical system for collecting a light beam from the optical wheel and a light beam from the light emitting element to a same optical path. The excitation light source is selectively turned on to illuminate the transmission portion or the at least two luminescent material layers, and the light emitting light source is turned on for a period of time during which the excitation light source does not shine the excitation light. | 11-07-2013 |
20140078168 | LIGHT SOURCE UNIT CAPABLE OF PREVENTING DETERIORATION OF LUMINESCENT MATERIAL LAYER, ILLUMINATING METHOD OF LIGHT SOURCE UNIT, AND PROJECTOR - There is provided a light source unit including an excitation light source emitting excitation light, and a luminescent member having a transmission portion transmitting excitation light from the excitation light source, a first luminescent material layer placed beside the transmission portion on one side of the luminescent member and a second luminescent material layer placed beside the transmission portion on the other side of the luminescent member, wherein the first luminescent material layer and/or the second luminescent material layer emits luminous light by being excited by the excitation light, and wherein a guiding optical system is provided which shines excitation light which has passed through the transmission portion from the excitation light source on to the first luminescent material layer and causes luminous light emitted from the first luminescent material layer to be incident on the transmission portion. | 03-20-2014 |
20140078472 | LIGHT SOURCE UNIT AND PROJECTOR - The invention includes an excitation light source, a light distribution adjusting member on which excitation light from the excitation light source is incident, and a luminescent material which emits luminous light of a different wavelength from that of the excitation light by the excitation light which passes through the light distribution adjusting member being shone on thereto, wherein the excitation light source is disposed so that the excitation light is incident on a light incident surface of the light distribution adjusting member at a predetermined angle. | 03-20-2014 |
20140078475 | FLUORESCENT WHEEL, LIGHT SOURCE DEVICE AND PROJECTOR - A fluorescent substrate includes a base having a reflective surface and a flat bottom surface, and a fluorescent layer disposed on the reflective surface of the base such that the reflective surface of the base directs, outward from the wheel, fluorescence emitted from the fluorescent layer due to its excitation by exciting light. The reflective surface of the base has an array of minute reflective structures formed thereon so as to reflect, outward from the reflective surface, fluorescence emitted substantially parallel to the flat bottom surface of the base from the fluorescent layer. | 03-20-2014 |
20140078476 | LIGHT SOURCE UNIT CAPABLE OF SHINING LIGHT OF HIGH IN-PLANE UNIFORMITY, ILLUMINATING METHOD OF LIGHT SOURCE UNIT, AND PROJECTOR - There is provided a light source unit including an excitation light source which emits excitation light, a luminescent material which receives excitation light from the excitation light source to emit luminous light, a diffuse plate on which the luminous light is incident, and a driving device which moves the diffuse plate so as to change an entering position of the luminous light on the diffuse plate. | 03-20-2014 |
20140176916 | LIGHT SOURCE UNIT ABLE TO DIFFUSE LASER BEAM SUFFICIENTLY, PROJECTOR, AND IMAGE PROJECTION METHOD - There is provided a light source unit having a light source which emits a laser beam, a plurality of diffusing plates on which the laser beam is incident and which emit the laser beam incident thereon as diffuse light, and a driving mechanism which moves the plurality of diffusing plates, wherein the laser beam from the light source is incident on one diffusing plate of the plurality of diffusing plates, and diffuse light emitted from the one diffusing plate is incident on the other diffusing plate of the plurality of diffusing plates. | 06-26-2014 |
Hiroki Masuda, Osaka JP
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20100107613 | Black Exhaust Purification Apparatus For Diesel Engine - It's an object of the present invention to provide a black smoke exhaust purification apparatus capable of equalizing temperature of a particulate filter and facilitating maintenance thereof. The black smoke exhaust purification apparatus ( | 05-06-2010 |
20100209309 | Black Smoke Purification Device - A black smoke purification device enabling engine performance to be retained by bringing PMs which have become giant into good contact with an oxidation catalyst. A black smoke purification device ( | 08-19-2010 |
Hiroki Masuda, Funabashi-Shi JP
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20100097628 | PRINTING SYSTEM, CONTROL METHOD THEREFOR, STORAGE MEDIUM STORING CONTROL PROGRAM THEREFOR, AND IMAGE FORMING APPARATUS - A printing system that enables to recover documents of a recovery target print job easily without forcing a user to do complicated operations. An information processing apparatus transmits a print job. An image forming apparatus prints out the received print job. A management information storage unit stores management information of a print job to be recovered. A management information transmission unit transmits the management information corresponding to user information. An identifying information input unit receives an input of identifying information for identifying a user. A user information transmission unit transmits the user information determined by authenticating the identifying information. A management information receiving unit receives the management information corresponding to the transmitted user information. A display control unit controls a display unit so as to display a no-outputted print job when an output operation is received, and display a no-recovered print job when a recovery operation is received. | 04-22-2010 |
Hiroki Masuda, Tsukuba-Shi JP
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20090232172 | LASER FREQUENCY STABILIZING DEVICE, METHOD AND PROGRAM - A laser frequency stabilizing device comprises a laser light producer operative to produce and emit a laser light containing a first and a second longitudinal mode light having different wavelengths; a spectrometer operative to spectrally decompose the laser light into the first longitudinal mode light and the second longitudinal mode light; a first detector operative to detect the light output signal from a absorption cell; a second and third detector operative to detect the signal intensity of the first and second longitudinal mode light; an actuator operative to change the resonant cavity length; a first drive controller operative to detect the saturated absorption signal from the light output signal detected at the first detector and control driving the actuator based on the saturated absorption signal; a second drive controller operative to control driving the actuator such that the signal intensity of the first longitudinal mode light detected at the second detector and the signal intensity of the second longitudinal mode light detected at the third detector have a ratio of a certain value; and a switcher operative to switch the control of the detector between the control by the first drive controller and the control by the second drive controller. | 09-17-2009 |
Hiroki Masuda, Aichi-Ken JP
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20090134667 | Bottom Structure of Vehicle Body - A second cross member, which extends in the lateral direction of a vehicle, is provided between one of floor side members and one of tunnel under reinforcements below a front floor panel. The bottom wall of the second cross member is arch-shaped, and a space is provided under the bottom wall. Due to the arch-shaped bottom wall, the second cross member deforms upward upon side collision of the vehicle, whereby the components arranged in the space are not damaged. | 05-28-2009 |
Hiroki Masuda, Kanagawa JP
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20080256450 | INFORMATION PRESENTING APPARATUS, INFORMATION PRESENTING METHOD, AND COMPUTER PROGRAM - In an information presenting apparatus, information associated with each of one or more motion images stored in a storage apparatus is displayed at a location corresponding to a file production time in the form of a calendar view. A plurality of frames of representative images are extracted from each motion image in accordance with a specified frame extraction method. Thumbnail images of the respective extracted representative images are produced, and each thumbnail image is related to a playback position in the motion image. The resultant thumbnail images are managed as a set of motion image thumbnail images in accordance with a production time of the motion image. Information associated with each motion image is displayed at a location corresponding to the production time of the motion image in the form of the calendar view. Thumbnail images associated with each motion image are displayed in an expanded form in the order of time. | 10-16-2008 |
20130132890 | FILE MANAGEMENT APPARATUS AND IMAGE DISPLAY APPARATUS - A file management apparatus includes the following elements: a representative image storage device storing representative image data of each of a plurality of content files in association with a creation time of the content file; a rendering unit rendering the representative image data at a position corresponding to the creation time with a calendar continuous over days, months, and years serving as a background; a display state maintaining unit maintaining, as a display state, a time-axis range of the calendar being displayed and a position thereof; an operation receiving unit receiving a change operation to change the display state, the change operation commonly being a scrolling operation in a time-series direction in any time-axis range; and a controller controlling, in response to the change operation, the rendering means to render the representative image data on the calendar on the basis of the display state. | 05-23-2013 |
Hiroki Masuda, Fussa-Shi JP
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20120026472 | LIGHT SOURCE UNIT AND PROJECTOR - There is provided a light source unit comprising a luminescent plate having a luminescent light emission portion and a diffuse transmission portion, a first light source which emits light of a wavelength band which can excite the luminescent material, a second light source which emits light of a wavelength band which differs from the luminous light and the light emitted from the first light source, a light guiding optical system which guides light of respective wavelength bands in color emitted from the luminescent plate to a predetermined plane, and a light source control part for controlling individually the emission of light from the first light source and the second light source, wherein the luminescent plate is disposed on optical paths of the first light source and the second light source, wherein a light shining position of light from the first light source and a light shining position of light from the second light source are made to differ from each other on the luminescent plate, and wherein the light source control part controls so that the first light source and the second light source emit light simultaneously or separately to thereby emit synthesized light or monochromatic light. | 02-02-2012 |
20120249976 | PROJECTION APPARATUS, PROJECTION METHOD, AND PROGRAM STORING PROGRAM - A projection unit projects the optical image formed by the optical image formation unit toward a projection target. A temperature detection unit detects a temperature of each type of the semiconductor light emitting elements during light emission. A measurement unit measures an intensity of light from each type of the semiconductor light emitting elements during light emission. A light emission control unit (a) corrects a measurement result from the measurement unit using a detection result from the temperature detection unit and (b) controls the light emission intensity for each of the semiconductor light emitting elements based on the corrected measurement result. | 10-04-2012 |
Hiroki Masuda, Kani-Shi JP
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20120204666 | WORM REDUCTION GEAR - A worm reduction gear that reduces a rotation of a worm and transmits the reduced rotation to a worm wheel includes a casing that houses the worm and the worm wheel, wherein the casing includes: a wheel opposing surface that opposes an end surface of the worm wheel via an interval; and a grease holding recessed portion formed in a recessed shape in the wheel opposing surface, and the grease holding recessed portion is provided in a position opposing a worm meshing portion between the worm and the worm wheel. | 08-16-2012 |
20120241245 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus for assisting steering of a steered wheel. The electric power steering apparatus includes an electric motor with a built-in controller for controlling rotation, a transmission mechanism for transmitting the rotation of the electric motor to the steering shaft, a connector used to pull out wiring from the controller to the outside, a first casing in which the connector and the electric motor are to be mounted and which includes an work hole used for a wire connection operation of the controller and the connector, a lid member for closing the work hole, and a second casing to be fixed to the first casing while housing the transmission mechanism. The second casing including a cover part for covering the lid member in a state fixed to the first casing. | 09-27-2012 |
Hiroki Masuda, Akishima-Shi JP
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20140063082 | PROJECTION APPARATUS, PROJECTION METHOD, AND STORAGE MEDIUM STORING PROGRAM, FOR REDUCING ENERGY CONSUMPTION BY SHORTENING COLOR MIXING PERIOD - A projection apparatus includes a light source with light emitting devices of a plurality of colors, a drive unit configured to drive the light emitting devices of the plurality of colors so as to orderly emit single-color light and mixed-color light, an input unit configured to input an image signal, a projection unit configured to form and emit an optical image corresponding to an image signal input by the input unit, using the single-color light and the mixed-color light, and a control unit configured to emit the mixed-color light in a part of a light emission period of the mixed-color light and switch off the light emitting devices during a rest of the part of the light emission period, based on the image signal input by the input unit. | 03-06-2014 |
Hiroki Masuda, Saitama JP
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20140326365 | NITROCARBURIZED CRANKSHAFT AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing a nitrocarburized crankshaft which is obtained by subjecting a bainitic microalloyed steel to a forging and a machining, and further subjecting the bainitic microalloyed steel to at least a strain releasing heat treatment and a subsequent nitrocarburizing treatment, the bainitic microalloyed steel containing, as essentially added elements, in terms of mass %: 0.10% to 0.40% of C; 0.10% to 1.0% of Si; 1.0% to 2.0% of Mn; 0.05% to 0.40% of Mo; and 0.05% to 0.40% of V, and the bainitic microalloyed steel optionally further containing, as arbitrarily added elements, in terms of mass %: 0.01% to 0.1% of S; 0.005% to 0.2% of Ti; 0.001% to 0.03% of Al; 0.50% or less of Cr; 0.5% or less of Cu; and 0.5% or less of Ni, with the balance being Fe and unavoidable impurities. | 11-06-2014 |