Patents by Inventor Yusuke Nara
Yusuke Nara 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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Publication number: 20220216498Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.Type: ApplicationFiled: February 3, 2022Publication date: July 7, 2022Inventors: Masaharu Suzuki, Yusuke Nara, Tadashi Nishiyama
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Patent number: 11276872Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.Type: GrantFiled: March 19, 2019Date of Patent: March 15, 2022Assignee: Honda Motor Co., Ltd.Inventors: Masaharu Suzuki, Yusuke Nara, Tadashi Nishiyama
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Patent number: 10930964Abstract: A fuel cell stack includes a pair of end plates disposed on opposing sides of a fuel cell stacked body in a first direction, a coupling bar that bridges between the end plates, a fastening member that connects the end plates and the coupling bar in the first direction, and a cylindrical knock disposed inside an end plate side mounting hole and a coupling bar side mounting hole of the end plates and the coupling bar in the first direction, and being externally fitted to the fastening member inside the end plate side mounting hole and the coupling bar side mounting hole. A first seal member in close contact with at least an inner circumferential surface of the end plate side mounting hole and the fastening member is disposed in a portion located between the cylindrical knock and the fastening member inside the end plate side mounting hole.Type: GrantFiled: December 19, 2016Date of Patent: February 23, 2021Assignee: Honda Motor Co., Ltd.Inventors: Hideharu Naito, Yusuke Nara
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Patent number: 10923755Abstract: A mount structure for a fuel cell stack includes a first bracket member supporting and fixing the fuel cell stack to a first installation member, and a second bracket member supporting and fixing the fuel cell stack to a second installation member. A part of the second bracket includes a constricted portion having low strength in comparison with other portions of the second bracket member.Type: GrantFiled: June 26, 2018Date of Patent: February 16, 2021Assignee: Honda Motor Co., Ltd.Inventors: Hideharu Naito, Yusuke Nara, Hidetada Kojima, Choichi Ishikawa, Ryoichi Yoshitomi
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Patent number: 10856461Abstract: A work system includes multiple work devices aligned along a board conveyance line, a replenishing device having a sensor for detecting presence or absence of an interfering object and configured to move in parallel with the board conveyance line while detecting the presence or absence of the interfering object by the sensor to replenish necessary members to the multiple work devices, and a draw-out device configured to draw out at least one of the multiple work devices in a direction orthogonal to a direction along the board conveyance line. When a draw-out request for the work device is made, the replenishing device performs an automatic draw-out process of moving to a position in which a draw-out position of the work device to be pulled forward is included within a detection range of the sensor, so as to determine whether the interfering object is detected by the sensor.Type: GrantFiled: April 28, 2017Date of Patent: December 1, 2020Assignee: FUJI CORPORATIONInventors: Hirotaka Hirayama, Yusuke Nara
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Patent number: 10720660Abstract: A fuel cell stack includes a coolant channel provided between a first separator of a first power generation cell among power generation cells and a second separator of a second power generation cell among the power generation cells which is adjacent to the first power generation cell. A coolant manifold is connected to the coolant channel. A coolant manifold end member is connected to the coolant manifold. The coolant manifold end member includes an air vent wall having an opening provided at an uppermost position of the coolant manifold end member in a height direction of the fuel cell stack. The coolant manifold end member includes a wall which surrounds the air vent wall and which is thinner than the air vent wall. The air vent pipe protrudes from the air vent wall. The air vent pipe and the coolant manifold end member are integrally made.Type: GrantFiled: March 9, 2017Date of Patent: July 21, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Yusuke Nara, Motohiro Takahashi, Daisuke Okonogi
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Patent number: 10693172Abstract: A manufacturing method includes providing a cell stack including fuel cells and has a first end and a second end. A first end plate is provided at the first end of the cell stack. The first end plate has a first end plate through hole. A second end plate is provided at the second end of the cell stack. A connecting member is provided to connect the first end plate and the second end plate. A first knock is inserted into the first end plate through hole and into a first connecting member installing hole. A first seal is located between the first knock and the first end plate in the first end plate through hole. The first end plate is moved in the stacking direction to contact the connecting member. A fastening member is inserted into the first knock.Type: GrantFiled: May 31, 2017Date of Patent: June 23, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Yusuke Nara, Kosuke Takagi, Yoshihito Kimura
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Publication number: 20200037480Abstract: A work system includes multiple work devices aligned along a board conveyance line, a replenishing device having a sensor for detecting presence or absence of an interfering object and configured to move in parallel with the board conveyance line while detecting the presence or absence of the interfering object by the sensor to replenish necessary members to the multiple work devices, and a draw-out device configured to draw out at least one of the multiple work devices in a direction orthogonal to a direction along the board conveyance line. When a draw-out request for the work device is made, the replenishing device performs an automatic draw-out process of moving to a position in which a draw-out position of the work device to be pulled forward is included within a detection range of the sensor, so as to determine whether the interfering object is detected by the sensor.Type: ApplicationFiled: April 28, 2017Publication date: January 30, 2020Applicant: FUJI CORPORATIONInventors: Hirotaka HIRAYAMA, Yusuke NARA
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Publication number: 20190214669Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.Type: ApplicationFiled: March 19, 2019Publication date: July 11, 2019Inventors: Masaharu SUZUKI, Yusuke NARA, Tadashi NISHIYAMA
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Patent number: 10283803Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.Type: GrantFiled: March 25, 2015Date of Patent: May 7, 2019Assignee: Honda Motor Co., Ltd.Inventors: Masaharu Suzuki, Yusuke Nara, Tadashi Nishiyama
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Publication number: 20190128171Abstract: A cooling structure includes: a first heat exchanger including a first heat dissipating portion configured to cool coolant for a first device and a second heat dissipating portion configured to cool coolant for a second device, the first and second heat dissipating portions being arranged along a plane facing in a fore and aft direction with respect to the vehicle and constituting a unitary structural body extending along the plane facing in the fore and aft direction; and a second heat exchanger including a third heat dissipating portion configured to cool coolant for a third device, the third heat dissipating portion extending along the plane facing in the fore and aft direction and being disposed in front of the first heat exchanger to overlap with a part of the first heat exchanger as seen in the fore and aft direction.Type: ApplicationFiled: October 9, 2018Publication date: May 2, 2019Inventors: Tatsuya KURIMOTO, Yusuke NARA, Kenji SAITO, Wataru INOUE
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Publication number: 20180301733Abstract: A mount structure for a fuel cell stack includes a first bracket member supporting and fixing the fuel cell stack to a first installation member, and a second bracket member supporting and fixing the fuel cell stack to a second installation member. A part of the second bracket includes a constricted portion having low strength in comparison with other portions of the second bracket member.Type: ApplicationFiled: June 26, 2018Publication date: October 18, 2018Inventors: Hideharu NAITO, Yusuke NARA, Hidetada KOJIMA, Choichi ISHIKAWA, Ryoichi YOSHITOMI
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Patent number: 10074868Abstract: A fuel cell stack includes a bracket and a boss. The bracket includes an attachment surface. The bracket includes an attachment and detachment hole and an opening hole. The boss includes a bearing surface and a locking surface part. The locking surface part is connected to the bearing surface and protrudes in an outside direction such that at least a part of the locking surface part overlaps with the attachment surface part viewed from an attachment direction when a center of the attachment and detachment hole coincides with a center of the bearing surface.Type: GrantFiled: March 7, 2017Date of Patent: September 11, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Yusuke Nara, Tadashi Nishiyama
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Patent number: 10033062Abstract: A second end plate constituting a fuel cell stack is provided with a cooling medium supply manifold member and a cooling medium discharge manifold member. The second end plate is also provided with a mount member that affixes the fuel cell stack to an automobile body frame and covers the cooling medium discharge manifold member.Type: GrantFiled: January 23, 2015Date of Patent: July 24, 2018Assignee: Honda Motor Co., Ltd.Inventors: Hideharu Naito, Yusuke Nara, Hidetada Kojima, Choichi Ishikawa, Ryoichi Yoshitomi
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Patent number: 10026986Abstract: A fuel cell stack includes unit cells, a resin load receiver, and a connecting member. The resin load receiver is provided in each of a first and second separators. The resin load receiver has a projecting portion that projects outwardly from an outer peripheral edge of each of the first and second separators and that has a projecting portion lateral face. The connecting member includes an engagement portion engaged with the resin load receiver and having a depressed portion into which the projecting portion is inserted and which has a depressed portion lateral face facing the projecting portion lateral face. A distance between the projecting portion lateral face and the depressed portion lateral face at a root portion of the projecting portion is smaller than a distance between the projecting portion lateral face and the depressed portion lateral face at an end of the projecting portion.Type: GrantFiled: February 1, 2016Date of Patent: July 17, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Tadashi Nishiyama, Yusuke Nara, Kosuke Takagi
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Patent number: 9905878Abstract: A fuel cell vehicle includes a fuel cell stack and a housing that has first and second end plates and four side plates connecting the sides of the first and second end plates. Projections provided on the first and second end plates have openings communicating with a space formed between an inner wall of the housing and a fuel cell laminate.Type: GrantFiled: September 2, 2015Date of Patent: February 27, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Tadashi Nishiyama, Masaharu Suzuki, Yusuke Nara
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Publication number: 20170346126Abstract: A manufacturing method includes providing a cell stack including fuel cells and has a first end and a second end. A first end plate is provided at the first end of the cell stack. The first end plate has a first end plate through hole. A second end plate is provided at the second end of the cell stack. A connecting member is provided to connect the first end plate and the second end plate. A first knock is inserted into the first end plate through hole and into a first connecting member installing hole. A first seal is located between the first knock and the first end plate in the first end plate through hole. The first end plate is moved in the stacking direction to contact the connecting member. A fastening member is inserted into the first knock.Type: ApplicationFiled: May 31, 2017Publication date: November 30, 2017Applicant: HONDA MOTOR CO., LTD.Inventors: Yusuke NARA, Kosuke TAKAGI, Yoshihito KIMURA
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Publication number: 20170263969Abstract: A fuel cell stack includes a coolant channel provided between a first separator of a first power generation cell among power generation cells and a second separator of a second power generation cell among the power generation cells which is adjacent to the first power generation cell. A coolant manifold is connected to the coolant channel. A coolant manifold end member is connected to the coolant manifold. The coolant manifold end member includes an air vent wall having an opening provided at an uppermost position of the coolant manifold end member in a height direction of the fuel cell stack. The coolant manifold end member includes a wall which surrounds the air vent wall and which is thinner than the air vent wall. The air vent pipe protrudes from the air vent wall. The air vent pipe and the coolant manifold end member are integrally made.Type: ApplicationFiled: March 9, 2017Publication date: September 14, 2017Applicant: HONDA MOTOR CO., LTD.Inventors: Yusuke NARA, Motohiro TAKAHASHI, Daisuke OKONOGI
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Publication number: 20170263967Abstract: A fuel cell stack includes a bracket and a boss. The bracket includes an attachment surface. The bracket includes an attachment and detachment hole and an opening hole. The boss includes a bearing surface and a locking surface part. The locking surface part is connected to the bearing surface and protrudes in an outside direction such that at least a part of the locking surface part overlaps with the attachment surface part viewed from an attachment direction when a center of the attachment and detachment hole coincides with a center of the bearing surface.Type: ApplicationFiled: March 7, 2017Publication date: September 14, 2017Applicant: HONDA MOTOR CO., LTD.Inventors: Yusuke NARA, Tadashi NISHIYAMA
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Publication number: 20170187061Abstract: A fuel cell stack includes a pair of end plates disposed on opposing sides of a fuel cell stacked body in a first direction, a coupling bar that bridges between the end plates, a fastening member that connects the end plates and the coupling bar in the first direction, and a cylindrical knock disposed inside an end plate side mounting hole and a coupling bar side mounting hole of the end plates and the coupling bar in the first direction, and being externally fitted to the fastening member inside the end plate side mounting hole and the coupling bar side mounting hole. A first seal member in close contact with at least an inner circumferential surface of the end plate side mounting hole and the fastening member is disposed in a portion located between the cylindrical knock and the fastening member inside the end plate side mounting hole.Type: ApplicationFiled: December 19, 2016Publication date: June 29, 2017Inventors: Hideharu NAITO, Yusuke NARA