Patents by Inventor Michihisa Tsutsumi
Michihisa Tsutsumi 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: 11479087Abstract: A cooling structure of a vehicle battery unit includes: a plurality of battery modules; a plurality of battery cooling units; a supply pipe; a discharge pipe; and a battery case. The supply pipe includes a supply pipe portion which passes between the at least two battery modules arranged in the vehicle width direction and connects the plurality of battery cooling units. The discharge pipe includes a discharge pipe portion which passes between the at least two battery modules arranged in the vehicle width direction and connects the plurality of battery cooling unit. The supply pipe portion and the discharge pipe portion have bellows pipe portions which are made of resin and can be expanded or contracted in the front-rear direction and curved pipe portions which are made of resin and bend in the vehicle width direction.Type: GrantFiled: May 11, 2020Date of Patent: October 25, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Yosuke Yamagishi, Michihisa Tsutsumi
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Patent number: 11309599Abstract: A cooling structure of a vehicle battery unit includes: at least two battery modules; a battery cooling unit; an electric connection box; a battery case; a supply pipe; and a discharge pipe. The supply pipe includes: a first supply pipe portion passing between a battery module of the at least two battery modules, which is the battery module located on one side in a vehicle width direction, and the electric connection box; and a second supply pipe portion passing between the at least two battery modules. The discharge pipe includes: a first discharge pipe portion passing between a battery module of the at least two battery modules, which is the battery module located on the other side in the vehicle width direction, and the electric connection box; and a second discharge pipe portion passing between the at least two battery modules.Type: GrantFiled: May 15, 2020Date of Patent: April 19, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Yosuke Yamagishi, Michihisa Tsutsumi, Hiroyuki Ozawa, Satoko Ito, Ryo Shinoda
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Patent number: 10944137Abstract: In a battery cooling device for an electric vehicle, a cooling medium supply piping and a cooling medium discharge piping are disposed in a fore-and-aft direction in a middle part in a vehicle width direction of a vehicle body. A plurality of cooling members extend toward opposite sides in the vehicle width direction from both the pipings. A cooling medium passage returns in an outer end part in the vehicle width direction of the cooling member. Therefore, when the vehicle is involved in a side collision, it becomes difficult for both the pipings to be damaged, and cooling medium is prevented from leaking. Also, the cooling medium flows by making a U-turn inside the cooling member, thereby enabling positions on outside and inside in the vehicle width direction of a battery to be cooled evenly.Type: GrantFiled: April 15, 2019Date of Patent: March 9, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Yosuke Yamagishi, Michihisa Tsutsumi, Manabu Matsumoto
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Publication number: 20200365959Abstract: A cooling structure of a vehicle battery unit includes: at least two battery modules; a battery cooling unit; an electric connection box; a battery case; a supply pipe; and a discharge pipe. The supply pipe includes: a first supply pipe portion passing between a battery module of the at least two battery modules, which is the battery module located on one side in a vehicle width direction, and the electric connection box; and a second supply pipe portion passing between the at least two battery modules. The discharge pipe includes: a first discharge pipe portion passing between a battery module of the at least two battery modules, which is the battery module located on the other side in the vehicle width direction, and the electric connection box; and a second discharge pipe portion passing between the at least two battery modules.Type: ApplicationFiled: May 15, 2020Publication date: November 19, 2020Applicant: HONDA MOTOR CO., LTD.Inventors: Yosuke YAMAGISHI, Michihisa TSUTSUMI, Hiroyuki OZAWA, Satoko ITO, Ryo SHINODA
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Publication number: 20200361289Abstract: A cooling structure of a vehicle battery unit includes: a plurality of battery modules; a plurality of battery cooling units; a supply pipe; a discharge pipe; and a battery case. The supply pipe includes a supply pipe portion which passes between the at least two battery modules arranged in the vehicle width direction and connects the plurality of battery cooling units. The discharge pipe includes a discharge pipe portion which passes between the at least two battery modules arranged in the vehicle width direction and connects the plurality of battery cooling unit. The supply pipe portion and the discharge pipe portion have bellows pipe portions which are made of resin and can be expanded or contracted in the front-rear direction and curved pipe portions which are made of resin and bend in the vehicle width direction.Type: ApplicationFiled: May 11, 2020Publication date: November 19, 2020Applicant: HONDA MOTOR CO., LTD.Inventors: Yosuke YAMAGISHI, Michihisa TSUTSUMI
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Publication number: 20190319319Abstract: In a battery cooling device for an electric vehicle, a cooling medium supply piping and a cooling medium discharge piping are disposed in a fore-and-aft direction in a middle part in a vehicle width direction of a vehicle body. A plurality of cooling members extend toward opposite sides in the vehicle width direction from both the pipings. A cooling medium passage returns in an outer end part in the vehicle width direction of the cooling member. Therefore, when the vehicle is involved in a side collision, it becomes difficult for both the pipings to be damaged, and cooling medium is prevented from leaking. Also, the cooling medium flows by making a U-turn inside the cooling member, thereby enabling positions on outside and inside in the vehicle width direction of a battery to be cooled evenly.Type: ApplicationFiled: April 15, 2019Publication date: October 17, 2019Applicant: HONDA MOTOR CO., LTD.Inventors: Yosuke Yamagishi, Michihisa Tsutsumi, Manabu Matsumoto
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Patent number: 7610882Abstract: In a default device of an actuator for a variable lift valve operating mechanism, in the event of failure of the actuator, a pressed portion of a lever pivotably supported on a support shaft is urged by a resilient force of a coil spring, an arm is pressed by a cam portion of the lever to rotate a control shaft in one direction to prevent valve lift from being a predetermined value or lower. The support shaft that pivotably supports the lever of a default mechanism is placed in a position offset from a rotation axis of the control shaft. Thus, as compared with the case where the support shaft is placed coaxially with the control shaft, a large urging force is input from the lever to the control shaft to reliably prevent the valve lift from being the predetermined value or lower.Type: GrantFiled: February 2, 2007Date of Patent: November 3, 2009Assignee: Honda Motor Co., Ltd.Inventors: Michihisa Tsutsumi, Shigeru Maruyama
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Publication number: 20070199530Abstract: In a default device of an actuator for a variable lift valve operating mechanism, in the event of failure of the actuator, a pressed portion of a lever pivotably supported on a support shaft is urged by a resilient force of a coil spring, an arm is pressed by a cam portion of the lever to rotate a control shaft in one direction to prevent valve lift from being a predetermined value or lower. The support shaft that pivotably supports the lever of a default mechanism is placed in a position offset from a rotation axis of the control shaft. Thus, as compared with the case where the support shaft is placed coaxially with the control shaft, a large urging force is input from the lever to the control shaft to reliably prevent the valve lift from being the predetermined value or lower.Type: ApplicationFiled: February 2, 2007Publication date: August 30, 2007Inventors: Michihisa Tsutsumi, Shigeru Maruyama