Patents by Inventor Tsutomu Shirakawa
Tsutomu Shirakawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11973321Abstract: A light emitting device includes a wiring substrate, a light emitting element array that includes a first side surface and a second side surface facing each other, and a third side surface and a fourth side surface connecting the first side surface and the second side surface to each other and facing each other, the light emitting element array being provided on the wiring substrate, a driving element that is provided on the wiring substrate on the first side surface side and drives the light emitting element array, a first circuit element and a second circuit element that are provided on the wiring substrate on the second side surface side to be arranged in a direction along the second side surface, and a wiring member that is provided on the third side surface side and the fourth side surface side and extends from a top electrode of the light emitting element array toward an outside of the light emitting element array.Type: GrantFiled: May 31, 2023Date of Patent: April 30, 2024Assignee: FUJIFILM Business Innovation Corp.Inventors: Kazuhiro Sakai, Daisuke Iguchi, Takeshi Minamiru, Yoshinori Shirakawa, Tomoaki Sakita, Tsutomu Otsuka
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Patent number: 11936164Abstract: A light emitting device includes a wiring substrate, a light emitting element array that includes a first side surface and a second side surface facing each other, and a third side surface and a fourth side surface connecting the first side surface and the second side surface to each other and facing each other, the light emitting element array being provided on the wiring substrate, a driving element that is provided on the wiring substrate on the first side surface side and drives the light emitting element array, a first circuit element and a second circuit element that are provided on the wiring substrate on the second side surface side to be arranged in a direction along the second side surface, and a wiring member that is provided on the third side surface side and the fourth side surface side and extends from a top electrode of the light emitting element array toward an outside of the light emitting element array.Type: GrantFiled: May 31, 2023Date of Patent: March 19, 2024Assignee: FUJIFILM Business Innovation Corp.Inventors: Kazuhiro Sakai, Daisuke Iguchi, Takeshi Minamiru, Yoshinori Shirakawa, Tomoaki Sakita, Tsutomu Otsuka
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Patent number: 10505211Abstract: The invention relates to fuel cell unit arranged in an underfloor space of a fuel cell vehicle. The fuel cell unit includes a fuel cell that has a plurality of cells stacked together; and a cell monitor that is arranged in a side region of the fuel cell, and that monitors a state of each of the cells.Type: GrantFiled: February 15, 2013Date of Patent: December 10, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu Shirakawa, Norishige Konno, Kazuya Mori
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Publication number: 20190193580Abstract: Provided is an electric vehicle in which impacts on a high-voltage connector from at least one of a dashboard or a cowl member can be suppressed. The electric vehicle includes a case disposed ahead of the dashboard and the cowl member of the vehicle, the case being adapted to house a high-voltage component, a high-voltage connector disposed on the upper face of the case and connected to the high-voltage component; and an auxiliary unit disposed on the upper face of the case. The auxiliary unit is disposed closer to the dashboard than is the high-voltage connector, and is formed of a material with higher rigidity than those of the dashboard and the cowl member.Type: ApplicationFiled: December 7, 2018Publication date: June 27, 2019Inventor: Tsutomu SHIRAKAWA
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Patent number: 10315716Abstract: A fuel cell vehicle includes a high voltage apparatus for a fuel cell, a compressor for an air conditioner disposed under the high voltage apparatus for the fuel cell and constituting a module integrated with the high voltage apparatus for the fuel cell, and a power control unit separated from the high voltage apparatus for the fuel cell, disposed at a vehicle body over the compressor and configured to control an operation of a motor. The compressor and the high voltage apparatus for the fuel cell are connected by a single power wiring.Type: GrantFiled: March 9, 2017Date of Patent: June 11, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koji Katano, Tsutomu Shirakawa
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Patent number: 10259516Abstract: A fuel cell vehicle includes a high voltage apparatus for a fuel cell, a compressor for an air conditioner disposed under the high voltage apparatus for the fuel cell and constituting a module integrated with the high voltage apparatus for the fuel cell, and a power control unit separated from the high voltage apparatus for the fuel cell, disposed at a vehicle body over the compressor and configured to control an operation of a motor. The compressor and the high voltage apparatus for the fuel cell are connected by a single power wiring.Type: GrantFiled: March 9, 2017Date of Patent: April 16, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koji Katano, Tsutomu Shirakawa
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Patent number: 10024927Abstract: A cell monitor connector is provided that can prevent detachment of the cell monitor connector from a fuel cell device with a simple configuration. A connector 4 for measuring voltage has a housing 41 with a plurality of slits 45 formed therein and an end of a separator 21 of a plurality of fuel cells 2 can be inserted into the slits 45. The housing 41 has a rib 46R at at least one end in the stacking direction of the fuel cells 2 such that the rib 46R projects in a direction perpendicular to the stacking direction.Type: GrantFiled: August 12, 2014Date of Patent: July 17, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koji Katano, Tsutomu Shirakawa, Hiroyuki Imanishi
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Patent number: 9981557Abstract: The disclosure provides a fuel cell system for a vehicle. The fuel cell system includes a fuel cell stack disposed in a front room of a vehicle; and a converter assembly. The converter assembly disposed above or below the fuel cell stack includes: a converter; a first connector section; and a second connector section. The second connector section connects the converter assembly and a second electrical instrument which uses a high voltage. The second connector section is disposed behind the first connector section in a front-rear direction of the vehicle, and when the first connector section and the second connector section are seen from the front-rear direction of the vehicle, the first connector section and at least a portion of the second connector section are overlapped each other.Type: GrantFiled: February 28, 2017Date of Patent: May 29, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koji Katano, Hiroyuki Sekine, Tsutomu Shirakawa
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Patent number: 9847540Abstract: A fuel cell unit has a structure that enables the maximum use of a cell monitor in the height direction (vertical direction). In order to achieve this, the fuel cell unit comprises a fuel cell stack (3) including a cell stack body in which unit cells are stacked; and a cell monitor (6) for monitoring a voltage of the unit cells, wherein the cell monitor (6) is arranged so as to be inclined relative to a vertical direction. The cell monitor is inclined by providing a part of the cell monitor in the vicinity of a heat-generating part in a fuel cell on an opposite side of the heat-generating part relative to a central part in the vertical direction of the cell monitor and providing a part of the cell monitor in an area other than the heat-generating part in the fuel cell on a heat-generating part side relative to the central part in the vertical direction of the cell monitor.Type: GrantFiled: April 14, 2014Date of Patent: December 19, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tsutomu Shirakawa, Hiroyuki Imanishi, Noboru Usami
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Patent number: 9799608Abstract: A semiconductor device includes a monocrystalline substrate of a material which does not have a liquid phase at atmospheric pressure, and an identification mark disposed on or in the substrate comprising an amorphous region of the material or a region of the material deviated from stoichiometry.Type: GrantFiled: August 31, 2015Date of Patent: October 24, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takuma Suzuki, Hirofumi Fujisawa, Tsutomu Shirakawa, Kenya Sano
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Publication number: 20170267301Abstract: A fuel cell vehicle includes a high voltage apparatus for a fuel cell, a compressor for an air conditioner disposed under the high voltage apparatus for the fuel cell and constituting a module integrated with the high voltage apparatus for the fuel cell, and a power control unit separated from the high voltage apparatus for the fuel cell, disposed at a vehicle body over the compressor and configured to control an operation of a motor. The compressor and the high voltage apparatus for the fuel cell are connected by a single power wiring.Type: ApplicationFiled: March 9, 2017Publication date: September 21, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji KATANO, Tsutomu SHIRAKAWA
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Publication number: 20170253126Abstract: The disclosure provides a fuel cell system for a vehicle. The fuel cell system includes a fuel cell stack disposed in a front room of a vehicle; and a converter assembly. The converter assembly disposed above or below the fuel cell stack includes: a converter; a first connector section; and a second connector section. The second connector section connects the converter assembly and a second electrical instrument which uses a high voltage. The second connector section is disposed behind the first connector section in a front-rear direction of the vehicle, and when the first connector section and the second connector section are seen from the front-rear direction of the vehicle, the first connector section and at least a portion of the second connector section are overlapped each other.Type: ApplicationFiled: February 28, 2017Publication date: September 7, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji KATANO, Hiroyuki SEKINE, Tsutomu SHIRAKAWA
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Publication number: 20170246964Abstract: A device unit is provided with a first heating element, a second heating element configured to generate a heat in an amount smaller than that generated by the first heating element, and a cooler located between the first heating element and the second heating element. The cooler has a coolant flow passage through which a coolant flows, and cooling fins disposed on a first heating element side in the coolant flow passage in a manner as to be substantially in parallel with a flow direction of the coolant, and a fluid resistance of the coolant in the coolant flow passage is smaller on a second heating element side than on the first heating element side.Type: ApplicationFiled: February 22, 2017Publication date: August 31, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shuji KAWAMURA, Ikuhiro NAKAMURA, Kozo MATSUURA, Koji KATANO, Tsutomu SHIRAKAWA
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Publication number: 20160268212Abstract: A semiconductor device includes a monocrystalline substrate of a material which does not have a liquid phase at atmospheric pressure, and an identification mark disposed on or in the substrate comprising an amorphous region of the material or a region of the material deviated from stoichiometry.Type: ApplicationFiled: August 31, 2015Publication date: September 15, 2016Inventors: Takuma SUZUKI, Hirofumi FUJISAWA, Tsutomu SHIRAKAWA, Kenya SANO
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Publication number: 20160231391Abstract: A cell monitor connector is provided that can prevent detachment of the cell monitor connector from a fuel cell device with a simple configuration. A connector 4 for measuring voltage has a housing 41 with a plurality of slits 45 formed therein and an end of a separator 21 of a plurality of fuel cells 2 can be inserted into the slits 45. The housing 41 has a rib 46R at at least one end in the stacking direction of the fuel cells 2 such that the rib 46R projects in a direction perpendicular to the stacking direction.Type: ApplicationFiled: August 12, 2014Publication date: August 11, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji KATANO, Tsutomu SHIRAKAWA, Hiroyuki IMANISHI
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Publication number: 20160133968Abstract: A fuel cell unit has a structure that enables the maximum use of a cell monitor in the height direction (vertical direction), In order to achieve this, the fuel cell unit comprises a fuel cell stack (3) including a cell stack body in which unit cells are stacked; and a cell monitor (6) for monitoring a voltage of the unit cells, wherein the cell monitor (6) is arranged so as to be inclined relative to a vertical direction. The cell monitor is inclined by providing a part of the cell monitor in the vicinity of a heat-generating part in a fuel cell on an opposite side of the heat-generating part relative to a central part in the vertical direction of the cell monitor and providing a part of the cell monitor in an area other than the heat-generating part in the fuel cell on a heat-generating part side relative to the central part in the vertical direction of the cell monitor.Type: ApplicationFiled: April 14, 2014Publication date: May 12, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu SHIRAKAWA, Hiroyuki IMANISHI, Noboru USAMI
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Patent number: 9327613Abstract: An arrangement structure of an inverter in a fuel cell vehicle, capable of protecting the inverter from an impact during a vehicle collision with a simple configuration, is provided. The inverter is arranged on a frame in an inclined posture so that an outer side surface faces the power control unit and so that a hydrogen side output connector is directed downward of the power control unit, and the hydrogen side output connector and a hydrogen side wire are connected through below the power control unit.Type: GrantFiled: August 12, 2014Date of Patent: May 3, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji Katano, Tsutomu Shirakawa
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Patent number: 9325109Abstract: An electrical connector is provided and includes a housing and plurality of contacts. The a housing includes a partition wall. The plurality of contacts are alternatively arranged along a plurality of rows in the housing such that adjacent rows of the plurality of rows are separated by the partition wall and offset with respect to each other.Type: GrantFiled: November 19, 2013Date of Patent: April 26, 2016Assignee: Tyco Electronics Japan G.K.Inventors: Fumito Nagashima, Tsutomu Shirakawa, Koji Katano
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Publication number: 20150246621Abstract: An arrangement structure of an inverter in a fuel cell vehicle, capable of protecting the inverter from an impact during a vehicle collision with a simple configuration, is provided. The inverter is arranged on a frame in an inclined posture so that an outer side surface faces the power control unit and so that a hydrogen side output connector is directed downward of the power control unit, and the hydrogen side output connector and a hydrogen side wire are connected through below the power control unit.Type: ApplicationFiled: August 12, 2014Publication date: September 3, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji Katano, Tsutomu Shirakawa
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Publication number: 20150017563Abstract: The invention relates to fuel cell unit arranged in an underfloor space of a fuel cell vehicle. The fuel cell unit includes a fuel cell that has a plurality of cells stacked together; and a cell monitor that is arranged in a side region of the fuel cell, and that monitors a state of each of the cells.Type: ApplicationFiled: February 15, 2013Publication date: January 15, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu Shirakawa, Norishige Konno, Kazuya Mori