Yanagizawa
Hirofumi Yanagizawa, Kyoto JP
Patent application number | Description | Published |
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20090305037 | ELASTOMERIC SHEATH-CORE CONJUGATE FIBER - The present invention provides a conjugate fiber having excellent elastic extensibility and transparency. The present invention relates to a highly elastic conjugate fiber comprising an elastomeric resin (A) having elastic extensibility; and an elastomeric resin (B) having elastic extensibility, permanent elongation of 25 to 70% and a tensile elongation of 100 to 800%; a core comprising the elastomeric resin (A), and a sheath comprising the elastomeric resin (B). | 12-10-2009 |
Hirofumi Yanagizawa, Shiga JP
Iwao Yanagizawa, Suzuka JP
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20090230814 | Carbon Brush of Motor and Method for Producing the Same - An electric motor that includes a rotor; a coil that is wound around the rotor; and a carbon brush that supplies power to the coil, wherein the brush is formed by using a raw material in which artificial graphite whose crystallites are flaky in shape is mixed with natural graphite whose crystallites are squamous or scaly in shape. | 09-17-2009 |
Naoki Yanagizawa, Nagakute-Shi JP
Patent application number | Description | Published |
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20140145694 | POWER SUPPLY SYSTEM - A power source system ( | 05-29-2014 |
20150229206 | ELECTRICAL POWER CONVERTER - An electrical power converter is configured to perform an electrical power conversion with two electricity storage apparatuses, the electrical power converter has: four switching elements which are electrically connected in series and which are housed in the electrical power converter such that the four switching elements are located at four corners of a planar quadrangular region respectively; a first conductive path which electrically connects a first and second switching elements among the four switching elements; and a second conductive path which electrically connects a third and fourth switching elements among the four switching elements, wherein the second conductive path intersects with the first conductive path in a planar view. | 08-13-2015 |
20160001660 | POWER SUPPLY SYSTEM - An operation mode selection unit selects an efficiency priority mode for minimizing the overall loss in a power supply system based on a load request voltage obtained in accordance with the condition of a load and on the conditions of DC power supplies, and generates a mode selection signal in accordance with the selection result. When SOC and/or output power have/has reached power supply restriction values in any DC power supply, an operation mode modification unit generates a final mode selection instructing signal so as to modify selection of the efficiency priority mode by the mode selection signal to select an operation mode in which power distribution between the DC power supplies can be controlled. | 01-07-2016 |
20160046203 | ELECTRICAL SOURCE CONTROL APPARATUS - An electrical source control apparatus controls a vehicle which travels by using an electrical source system including a first electrical source and a second electrical source. The electrical source control apparatus has: a controlling device for controlling the first and second electrical sources to set a residual power level of the first electrical source equal to first target amount and to set a residual power level of the second electrical source equal to second target amount, and a setting device for setting the first and second target amounts such that each of the first and second target amounts becomes smaller as a speed of the vehicle becomes larger. The setting device sets the first and second target amounts such that a rate of change of the second target amount to the speed is larger than a rate of change of the first target amount to the speed. | 02-18-2016 |
Naoki Yanagizawa, Nagakute-Shi, Aichi-Ken JP
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20160129796 | POWER SUPPLY SYSTEM OF ELECTRIC-POWERED VEHICLE - A hybrid vehicle can travel using outputs from an engine and a second motor-generator. A first motor-generator can generate electric power for charging a plurality of DC power supplies using the output from the engine during vehicle traveling or during a vehicle stop. A power supply system includes a power converter connected across the DC power supplies and an electric power line connected in common to the first and second motor-generators. A control device generates operation commands for the first and second motor-generators and the engine so as to ensure driving request power based on a vehicle traveling condition and charging/discharging request power for the DC power supplies as a whole. The setting of the charging/discharging request power is switched in accordance with an operation mode of the power converter. | 05-12-2016 |
20160137069 | POWER SUPPLY SYSTEM - A power converter has a series direct connection mode of keeping on/off of a plurality of switching elements to maintain the state where first and second DC power supplies different in amount of voltage change with respect to input/output of the same amount of electric power are connected in series with an electric power line connected to a load, and a voltage controlling mode of controlling an output voltage on the electric power line to be a voltage command value by controlling on/off of the plurality of switching elements. In the voltage controlling mode, between time tx and ta, the sum of voltages of the first and second DC power supplies is matched with the voltage command value by controlling the output voltage by means of charging/discharging between the first and second DC power supplies. After time ta, the series direct connection mode is applied. | 05-19-2016 |