Patents by Inventor Fumiaki Shigematsu
Fumiaki Shigematsu 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: 11319971Abstract: A vehicle driving apparatus including: a fluid pump; a rotary member; a bearing supporting the rotary member; a pump cover covering the fluid pump; a relief valve; and a casing storing the fluid pump, the rotary member, the bearing, the pump cover and the relief valve. The casing includes a casing body and a casing cover. The casing cover defines a fluid passage that is in communication with an outlet port of the fluid pump, and includes cylindrical-shaped first and second boss portions. The first boss portion includes a supporting portion supporting the rotary member through the bearing which is fitted in a space radially inside the first boss portion. The second boss portion defines a valve room that is in communication with the fluid passage, with the relief valve being stored in the valve room.Type: GrantFiled: September 28, 2020Date of Patent: May 3, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Chunyang Sun, Wataru Matsumoto, Tomonori Uchida, Fumiaki Shigematsu, Satoshi Miyanaga
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Publication number: 20210095690Abstract: A vehicle driving apparatus including: a fluid pump; a rotary member; a bearing supporting the rotary member; a pump cover covering the fluid pump; a relief valve; and a casing storing the fluid pump, the rotary member, the bearing, the pump cover and the relief valve. The casing includes a casing body and a casing cover. The casing cover defines a fluid passage that is in communication with an outlet port of the fluid pump, and includes cylindrical-shaped first and second boss portions. The first boss portion includes a supporting portion supporting the rotary member through the bearing which is fitted in a space radially inside the first boss portion. The second boss portion defines a valve room that is in communication with the fluid passage, with the relief valve being stored in the valve room.Type: ApplicationFiled: September 28, 2020Publication date: April 1, 2021Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Chunyang SUN, Wataru MATSUMOTO, Tomonori UCHIDA, Fumiaki SHIGEMATSU, Satoshi MIYANAGA
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Patent number: 10876616Abstract: In a power transmission device for a vehicle, comprising: a transaxle casing in which a motor and a voltage power line are housed; and a cover attached so as to close an opening of the transaxle casing, the cover includes a flange portion provided at an outer edge portion of the cover and connected to the opening of the transaxle casing, a bearing support portion for a bearing that supports a rotary shaft rotatably, and a cover wall provided between the flange portion and the bearing support portion, and a valve body is attached to the cover wall so as to be positioned at a portion of the cover wall at which a direct distance between the bearing support portion and the flange portion surrounding the bearing support portion is longest.Type: GrantFiled: February 22, 2019Date of Patent: December 29, 2020Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Masataka Sugiyama, Kenji Tanabe, Takeshi Kuwahara, Tomohisa Taga, Akihiko Ikeda, Fumiaki Shigematsu, Atomi Arakawa, Masamitsu Seno
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Patent number: 10823274Abstract: A case component of a transaxle includes: a bearing unit having a through-hole through with a shaft member is to be inserted; a matching surface unit having a matching surface on which another member is to be overlapped; bolt hole portions formed on the matching surface unit; bent wall portions, each having a V-shaped or U-shaped cross-section cut in a direction orthogonal to a straight line connecting a shaft center of the bearing unit and a shaft center of the bolt hole portions, each having a valley portion positioned on the straight line, and connecting the bearing unit and the respective bolt hole portions; and V-shaped portions, connected with the respective bent wall portions, provided on an outer circumference of the respective bolt hole portions, and protruding toward the bearing unit.Type: GrantFiled: February 25, 2019Date of Patent: November 3, 2020Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Tomohiro Abe, Hiroaki Kimura, Hiroto Hashimoto, Takayuki Teramoto, Eita Hamada, Fumiaki Shigematsu
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Patent number: 10471994Abstract: A vehicle front structure includes a powertrain unit disposed in a front portion of a vehicle; a suspension cross member disposed behind the powertrain unit and extending in a vehicle width direction; and a bracket fastened to a boss portion provided in a housing of the powertrain unit. The bracket contacts a receiving surface of the suspension cross member due to backward movement of the powertrain unit during a vehicle front collision. The bracket includes a buffer portion disposed between a fastened portion that is fastened to the boss portion and a contact portion that contacts the receiving surface of the suspension cross member.Type: GrantFiled: January 16, 2018Date of Patent: November 12, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiko Ikeda, Fumiaki Shigematsu
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Patent number: 10427720Abstract: A front portion structure for a vehicle includes a powertrain unit and a suspension cross member. The suspension cross member includes a load receiving portion as a part of the suspension cross member in a width direction of the vehicle positioned above the other parts. The powertrain unit includes an abutting portion abutting against the suspension cross member when the powertrain unit moves backward during a front collision of the vehicle. The abutting portion is arranged on a lower side of a differential case of a differential device provided in a transaxle of the powertrain unit and at a position facing the load receiving portion of the suspension cross member.Type: GrantFiled: December 29, 2017Date of Patent: October 1, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiko Ikeda, Fumiaki Shigematsu
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Publication number: 20190293168Abstract: A case component of a transaxle includes: a bearing unit having a through-hole through with a shaft member is to be inserted; a matching surface unit having a matching surface on which another member is to be overlapped; bolt hole portions formed on the matching surface unit; bent wall portions, each having a V-shaped or U-shaped cross-section cut in a direction orthogonal to a straight line connecting a shaft center of the bearing unit and a shaft center of the bolt hole portions, each having a valley portion positioned on the straight line, and connecting the bearing unit and the respective bolt hole portions; and V-shaped portions, connected with the respective bent wall portions, provided on an outer circumference of the respective bolt hole portions, and protruding toward the bearing unit.Type: ApplicationFiled: February 25, 2019Publication date: September 26, 2019Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Tomohiro ABE, Hiroaki KIMURA, Hiroto HASHIMOTO, Takayuki TERAMOTO, Eita HAMADA, Fumiaki SHIGEMATSU
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Publication number: 20190264797Abstract: In a power transmission device for a vehicle, comprising: a transaxle casing in which a motor and a voltage power line are housed; and a cover attached so as to close an opening of the transaxle casing, the cover includes a flange portion provided at an outer edge portion of the cover and connected to the opening of the transaxle casing, a bearing support portion for a bearing that supports a rotary shaft rotatably, and a cover wall provided between the flange portion and the bearing support portion, and a valve body is attached to the cover wall so as to be positioned at a portion of the cover wall at which a direct distance between the bearing support portion and the flange portion surrounding the bearing support portion is longest.Type: ApplicationFiled: February 22, 2019Publication date: August 29, 2019Applicants: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Masataka SUGIYAMA, Kenji TANABE, Takeshi KUWAHARA, Tomohisa TAGA, Akihiko IKEDA, Fumiaki SHIGEMATSU, Atomi ARAKAWA, Masamitsu SENO
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Publication number: 20180208247Abstract: A vehicle front structure includes a powertrain unit disposed in a front portion of a vehicle; a suspension cross member disposed behind the powertrain unit and extending in a vehicle width direction; and a bracket fastened to a boss portion provided in a housing of the powertrain unit. The bracket contacts a receiving surface of the suspension cross member due to backward movement of the powertrain unit during a vehicle front collision. The bracket includes a buffer portion disposed between a fastened portion that is fastened to the boss portion and a contact portion that contacts the receiving surface of the suspension cross member.Type: ApplicationFiled: January 16, 2018Publication date: July 26, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiko IKEDA, Fumiaki SHIGEMATSU
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Publication number: 20180201327Abstract: A front portion structure for a vehicle includes a powertrain unit and a suspension cross member. The suspension cross member includes a load receiving portion as a part of the suspension cross member in a width direction of the vehicle positioned above the other parts. The powertrain unit includes an abutting portion abutting against the suspension cross member when the powertrain unit moves backward during a front collision of the vehicle. The abutting portion is arranged on a lower side of a differential case of a differential device provided in a transaxle of the powertrain unit and at a position facing the load receiving portion of the suspension cross member.Type: ApplicationFiled: December 29, 2017Publication date: July 19, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiko IKEDA, Fumiaki SHIGEMATSU
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Publication number: 20180194406Abstract: A vehicle front structure includes a powertrain unit disposed in a front portion of a vehicle; and a vehicle body member disposed behind the powertrain unit and extending in a vehicle width direction. The powertrain unit is provided with a contact portion having a contact surface that contacts a receiving surface of the vehicle body member at a time when the powertrain unit moves backward during a vehicle front collision, the receiving surface being planar. The contact surface of the contact portion is planar and is inclined with respect to the receiving surface in a same direction as a direction in which the receiving surface is inclined due to deformation of the vehicle body member during the vehicle front collision.Type: ApplicationFiled: December 20, 2017Publication date: July 12, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiko IKEDA, Fumiaki SHIGEMATSU
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Publication number: 20170217310Abstract: Provided is a mounting structure including an electronic control unit, a plurality of support brackets, a transaxle case, an intermediate bracket protruding from the transaxle case toward a rear side of the vehicle, and an engaging projection. The engaging projection is a projection that is provided to at least one of an upper surface of the intermediate bracket or a bottom surface of the electronic control unit in a region where the intermediate bracket is in surface contact with a mounting surface of the transaxle case, the engaging projection protruding in a direction toward the upper surface of the intermediate bracket and the bottom surface of the electronic control unit. The engaging projection presses the intermediate bracket against the mounting surface of the transaxle case responding to displacement of the electronic control unit at the time of vehicle collision.Type: ApplicationFiled: January 17, 2017Publication date: August 3, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiko IKEDA, Teppei YAMASHITA, Fumiaki SHIGEMATSU
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Patent number: 9718356Abstract: Provided is a mounting structure including an electronic control unit, a plurality of support brackets, a transaxle case, an intermediate bracket protruding from the transaxle case toward a rear side of the vehicle, and an engaging projection. The engaging projection is a projection that is provided to at least one of an upper surface of the intermediate bracket or a bottom surface of the electronic control unit in a region where the intermediate bracket is in surface contact with a mounting surface of the transaxle case, the engaging projection protruding in a direction toward the upper surface of the intermediate bracket and the bottom surface of the electronic control unit. The engaging projection presses the intermediate bracket against the mounting surface of the transaxle case responding to displacement of the electronic control unit at the time of vehicle collision.Type: GrantFiled: January 17, 2017Date of Patent: August 1, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiko Ikeda, Teppei Yamashita, Fumiaki Shigematsu