Patents by Inventor Ayumu Ishizuka
Ayumu Ishizuka 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: 8974985Abstract: A stack hinge is formed by stacking a plurality of plate hinge parts each having the same shape. Each of the plate hinge parts has a tab having a pin through hole for engagement with a joint pin and a joint portion joined to a panel of a unit box. The plate hinge parts are stacked by aligning the pin through holes and fixed together to assemble the plate hinge parts into a single hinge member.Type: GrantFiled: June 6, 2008Date of Patent: March 10, 2015Assignee: Honda Motor Co., Ltd.Inventors: Ryoichi Yoshitomi, Ayumu Ishizuka, Makoto Tsuji, Yositaka Hattori, Shigeru Maniwa, Daisuke Nakagawara
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Patent number: 8247131Abstract: A fuel cell stack includes a load receiver provided at an outer end of a fuel cell unit, a guide receiver provided in a box, and a pressure receiver provided in at least one corner in the box. The guide receiver abuts against the load receiver for receiving the external load. The pressure receiver protrudes toward the fuel cell unit. The pressure receiver abuts against a corner of the fuel cell unit for receiving the load. The pressure receiver has a resin receiver, and the resin receiver abuts against a curved portion of the fuel cell unit for supporting the fuel cell unit.Type: GrantFiled: June 11, 2008Date of Patent: August 21, 2012Assignee: Honda Motor Co., Ltd.Inventors: Ken Takahashi, Ryoichi Yoshitomi, Daisuke Wachi, Keisuke Andou, Ayumu Ishizuka, Tadashi Nishiyama
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Patent number: 8221935Abstract: A coolant inlet manifold for coolant supply passages is attached to an end plate of a fuel cell stack. Pillars are provided on at least one end of the coolant inlet manifold in a longitudinal direction thereof. The pillars are fitted into through holes formed in the end plate, and are connected to a manifold body and to a connector.Type: GrantFiled: March 17, 2009Date of Patent: July 17, 2012Assignee: Honda Motor Co., Ltd.Inventors: Masaharu Suzuki, Go Morimoto, Katsuhiko Kohyama, Ayumu Ishizuka
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Patent number: 8197984Abstract: A fuel cell stack includes a box-shaped casing and a stack body in the box-shaped casing. The stack body is formed by stacking a plurality of unit cells. The casing includes end plates, a plurality of side plates, angle members, and coupling pins. The angle members couple adjacent ends of the side plates. The coupling pins couple the end plates and the side plates.Type: GrantFiled: July 23, 2004Date of Patent: June 12, 2012Assignee: Honda Motor Co., Ltd.Inventors: Narutoshi Sugita, Takashi Kosaka, Ayumu Ishizuka, Ken Takahashi, Hiroshi Morikawa, Teruyuki Ohtani
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Patent number: 8034503Abstract: A casing includes end plates, side plates, and a hinge mechanism for coupling the end plates and the side plates. A power generation area is defined by the distance L1 and the distance L2. When first hinges and second hinges of the hinge mechanism are provided alternately, the first hinges and the second hinges are positioned within the distance L1. Preferably, the length of the shaft of a coupling pin is not more than the length L1. When the first hinges and the second hinges are provided alternately, the first hinges and the second hinges are positioned within the length L2. Preferably, the length of the shaft of a coupling pin is not more than the length L2.Type: GrantFiled: March 21, 2008Date of Patent: October 11, 2011Assignee: Honda Motor Co., Ltd.Inventors: Ryoichi Yoshitomi, Ayumu Ishizuka
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Patent number: 7736816Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of unit cells in a horizontal direction. The stack body is held in a casing including end plates. Further, the casing includes a plurality of side plates provided on sides of the stack body. The end plates and the side plates are coupled by coupling pins. Each of the side plates has a plurality of separate second coupling portions, and the coupling pins are inserted into the coupling portions.Type: GrantFiled: December 20, 2007Date of Patent: June 15, 2010Assignee: Honda Motor Co., Ltd.Inventors: Ryoichi Yoshitomi, Ayumu Ishizuka, Makoto Tsuji
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Patent number: 7709132Abstract: A side plate of a casing includes bracket members and a surface member. Each of the bracket members includes three second coupling portions and a plate-shaped attachment portion provided integrally with the second coupling portions. A coupling pin is inserted into the second coupling portions. The surface member is joined to the plate-shaped attachment portion. The bracket member includes a step fitted to an end of the surface member. The plate-shaped attachment portion and the surface member are jointed at a spot welding section including spots in a zigzag pattern.Type: GrantFiled: September 16, 2005Date of Patent: May 4, 2010Assignee: Honda Motor Co., Ltd.Inventors: Ayumu Ishizuka, Hideaki Kikuchi, Go Morimoto
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Patent number: 7641999Abstract: A fuel cell stack includes side plates of a casing. Flanges are provided on the side plates on the short sides for coupling the side plates on the short sides to the other side plates on the long sides. In each of the side plates, the center O of the coupling pin is offset from the neutral surface NS of the side plate in a direction away from a stack body by the distance “h”.Type: GrantFiled: August 26, 2005Date of Patent: January 5, 2010Assignee: Honda Motor Co., Ltd.Inventors: Ayumu Ishizuka, Hideaki Kikuchi, Go Morimoto
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Publication number: 20090233139Abstract: A coolant inlet manifold for coolant supply passages is attached to an end plate of a fuel cell stack. Pillars are provided on at least one end of the coolant inlet manifold in a longitudinal direction thereof. The pillars are fitted into through holes formed in the end plate, and are connected to a manifold body and to a connector.Type: ApplicationFiled: March 17, 2009Publication date: September 17, 2009Applicant: HONDA MOTOR CO., LTD.Inventors: Masaharu SUZUKI, Go MORIMOTO, Katsuhiko KOHYAMA, Ayumu ISHIZUKA
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Patent number: 7533748Abstract: A vehicle mounting structure for a fuel cell includes a fuel cell box which accommodates a fuel cell stack inside. The fuel cell box includes a bottom frame on which the fuel cell stack is mounted, a top frame, the bottom frame and the top frame sandwiching the fuel cell stack, a side frame which forms a framework of the fuel cell box and which is connected to the bottom frame and to the top frame, a bottom holddown member which fixes a bottom portion of the fuel cell stack to the bottom frame, and a top holddown member which fixes a top portion of the fuel cell stack to the top frame. Structural members which are required to carry a fuel cell stack are reduced in weight and miniaturized in size while ensuring the desired installation rigidity when the fuel cell stack is carried.Type: GrantFiled: January 20, 2005Date of Patent: May 19, 2009Assignee: Honda Motor Co., Ltd.Inventors: Kazuyoshi Miyajima, Ayumu Ishizuka, Ken Takahashi, Makoto Anazawa, Takashi Kato
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Publication number: 20080305368Abstract: A fuel cell stack includes a load receiver provided at an outer end of a fuel cell unit, a guide receiver provided in a box, and a pressure receiver provided in at least one corner in the box. The guide receiver abuts against the load receiver for receiving the external load. The pressure receiver protrudes toward the fuel cell unit. The pressure receiver abuts against a corner of the fuel cell unit for receiving the load. The pressure receiver has a resin receiver, and the resin receiver abuts against a curved portion of the fuel cell unit for supporting the fuel cell unit.Type: ApplicationFiled: June 11, 2008Publication date: December 11, 2008Applicant: Honda Motor Co., Ltd.Inventors: Ken Takahashi, Ryoichi Yoshitomi, Daisuke Wachi, Keisuke Andou, Ayumu Ishizuka, Tadashi Nishiyama
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Publication number: 20080305383Abstract: A stack hinge is formed by stacking a plurality of plate hinge parts each having the same shape. Each of the plate hinge parts has a tab having a pin through hole for engagement with a joint pin and a joint portion joined to a panel of a unit box. The plate hinge parts are stacked by aligning the pin through holes and fixed together to assemble the plate hinge parts into a single hinge member.Type: ApplicationFiled: June 6, 2008Publication date: December 11, 2008Applicant: Honda Motor Co., Ltd.Inventors: Ryoichi Yoshitomi, Ayumu Ishizuka, Makoto Tsuji, Yositaka Hattori, Shigeru Maniwa, Daisuke Nakagawara
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Publication number: 20080233459Abstract: A casing includes end plates, side plates, and a hinge mechanism for coupling the end plates and the side plates. A power generation area is defined by the distance L1 and the distance L2. When first hinges and second hinges of the hinge mechanism are provided alternately, the first hinges and the second hinges are positioned within the distance L1. Preferably, the length of the shaft of a coupling pin is not more than the length L1. When the first hinges and the second hinges are provided alternately, the first hinges and the second hinges are positioned within the length L2. Preferably, the length of the shaft of a coupling pin is not more than the length L2.Type: ApplicationFiled: March 21, 2008Publication date: September 25, 2008Applicant: Honda Motor Co., Ltd.Inventors: Ryoichi Yoshitomi, Ayumu Ishizuka
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Publication number: 20060068264Abstract: A side plate of a casing includes bracket members and a surface member. Each of the bracket members includes three second coupling portions and a plate-shaped attachment portion provided integrally with the second coupling portions. A coupling pin is inserted into the second coupling portions. The surface member is joined to the plate-shaped attachment portion. The bracket member includes a step fitted to an end of the surface member. The plate-shaped attachment portion and the surface member are jointed at a spot welding section including spots in a zigzag pattern.Type: ApplicationFiled: September 16, 2005Publication date: March 30, 2006Applicant: Honda Motor Co., Ltd.Inventors: Ayumu Ishizuka, Hideaki Kikuchi, Go Morimoto
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Publication number: 20060046127Abstract: A fuel cell stack includes side plates of a casing. Flanges are provided on the side plates on the short sides for coupling the side plates on the short sides to the other side plates on the long sides. In each of the side plates, the center O of the coupling pin is offset from the neutral surface NS of the side plate in a direction away from a stack body by the distance “h”.Type: ApplicationFiled: August 26, 2005Publication date: March 2, 2006Applicant: Honda Motor Co., Ltd.Inventors: Ayumu Ishizuka, Hideaki Kikuchi, Go Morimoto
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Publication number: 20050173170Abstract: A vehicle mounting structure for a fuel cell includes a fuel cell box which accommodates a fuel cell stack inside. The fuel cell box includes a bottom frame on which the fuel cell stack is mounted, a top frame, the bottom frame and the top frame sandwiching the fuel cell stack, a side frame which forms a framework of the fuel cell box and which is connected to the bottom frame and to the top frame, a bottom holddown member which fixes a bottom portion of the fuel cell stack to the bottom frame, and a top holddown member which fixes a top portion of the fuel cell stack to the top frame. Structural members which are required to carry a fuel cell stack are reduced in weight and miniaturized in size while ensuring the desired installation rigidity when the fuel cell stack is carried.Type: ApplicationFiled: January 20, 2005Publication date: August 11, 2005Applicant: Honda Motor Co., Ltd.Inventors: Kazuyoshi Miyajima, Ayumu Ishizuka, Ken Takahashi, Makoto Anazawa, Takashi Kato
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Publication number: 20050019643Abstract: A fuel cell stack includes a box-shaped casing and a stack body in the box-shaped casing. The stack body is formed by stacking a plurality of unit cells. The casing includes end plates, a plurality of side plates, angle members, and coupling pins. The angle members couple adjacent ends of the side plates. The coupling pins couple the end plates and the side plates.Type: ApplicationFiled: July 23, 2004Publication date: January 27, 2005Applicant: Honda Motor Co., Ltd.Inventors: Narutoshi Sugita, Takashi Kosaka, Ayumu Ishizuka, Ken Takahashi, Hiroshi Morikawa, Teruyuki Ohtani