Patents by Inventor Kenta TAMABAYASHI
Kenta TAMABAYASHI 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: 11890937Abstract: A first support is open toward a first side in an axial direction. A press member is at such a position as to press a first friction plate and second friction plate of a friction clutch device from the first side in the axial direction. An intermediate member includes a body between the press member and a second support in the axial direction and a protrusion protruding toward the first side of the body in the axial direction. The press member has an insertion hole extending through the press member in the axial direction and configured to receive the protrusion.Type: GrantFiled: October 29, 2020Date of Patent: February 6, 2024Assignee: AISIN FUKUI CORPORATIONInventors: Shingo Yamashita, Kenta Tamabayashi, Yu Takizawa, Hiromasa Hayashi
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Publication number: 20220379710Abstract: A first support is open toward a first side in an axial direction. A press member is at such a position as to press a first friction plate and second friction plate of a friction clutch device from the first side in the axial direction. An intermediate member includes a body between the press member and a second support in the axial direction and a protrusion protruding toward the first side of the body in the axial direction. The press member has an insertion hole extending through the press member in the axial direction and configured to receive the protrusion.Type: ApplicationFiled: October 29, 2020Publication date: December 1, 2022Applicant: AISIN FUKUI CORPORATIONInventors: Shingo YAMASHITA, Kenta TAMABAYASHI, Yu TAKIZAWA, Hiromasa HAYASHI
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Patent number: 11254200Abstract: A vehicle drive device includes: rotary electric machine; rotor support member; friction engagement device disposed at position on inner side in radial direction with respect to a rotor and at which friction engagement device overlaps rotor as viewed in radial direction along radial direction; and a first and second bearing that rotatably support rotor support member. Friction engagement device has a first and second engagement device disposed side by side in axial direction. First piston portion of first engagement device and a second piston portion of second engagement device are disposed separately on both sides in axial direction across a first and a second friction member. First bearing is disposed at a position at which first bearing overlaps first piston portion as viewed in the radial direction. Second bearing is disposed at a position at which second bearing overlaps second piston portion as viewed in the radial direction.Type: GrantFiled: January 29, 2019Date of Patent: February 22, 2022Assignee: AISIN CORPORATIONInventors: Kenji Omote, Keishi Morita, Kenta Tamabayashi, Hiroshi Ishiyama
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Publication number: 20210379982Abstract: A vehicle drive device includes: rotary electric machine; rotor support member; friction engagement device disposed at position on inner side in radial direction with respect to a rotor and at which friction engagement device overlaps rotor as viewed in radial direction along radial direction; and a first and second bearing that rotatably support rotor support member. Friction engagement device has a first and second engagement device disposed side by side in axial direction. First piston portion of first engagement device and a second piston portion of second engagement device are disposed separately on both sides in axial direction across a first and a second friction member. First bearing is disposed at a position at which first bearing overlaps first piston portion as viewed in the radial direction. Second bearing is disposed at a position at which second bearing overlaps second piston portion as viewed in the radial direction.Type: ApplicationFiled: January 29, 2019Publication date: December 9, 2021Applicant: AISIN AW CO., LTD.Inventors: Kenji OMOTE, Keishi MORITA, Kenta TAMABAYASHI, Hiroshi ISHIYAMA
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Patent number: 9080615Abstract: A fastening portion is formed from a rivet hole of a first side wall portion of a clutch drum, a rivet hole of a second side wall portion of a clutch drum, and a rivet that is inserted into the rivet hole and the rivet hole to hold together the first side wall portion and the second side wall portion. The fastening portion is provided between a first engagement side oil chamber enclosed by the clutch drum and a clutch piston, and a second engagement side oil chamber enclosed by the clutch drum and a clutch piston.Type: GrantFiled: March 15, 2012Date of Patent: July 14, 2015Assignee: AISIN AW CO., LTD.Inventors: Hiroshi Kato, Takuya Ishii, Norihiro Tokunaga, Satoru Kasuya, Kenta Tamabayashi
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Patent number: 8875859Abstract: A hydraulic clutch including a clutch drum with an outer cylinder fitted with a plurality of clutch plates and a side wall; a clutch piston that defines together with the clutch drum an engagement oil chamber, and moves in an axial direction to press the clutch plates by hydraulic pressure supplied to the engagement oil chamber; and a cancel plate that defines together with the clutch piston a cancel oil chamber that cancels centrifugal hydraulic pressure. The side wall of the clutch drum is formed with a first oil passage that radially extends and is in communication with the engagement oil chamber, and a second oil passage that radially extends and is in communication with the cancel oil chamber. One of the first and second oil passages is at least partially included in a range of an axial width of the other of the first and second oil passages.Type: GrantFiled: May 30, 2014Date of Patent: November 4, 2014Assignee: Aisin AW Co., Ltd.Inventors: Satoru Kasuya, Hiroshi Katou, Takuya Ishii, Norihiro Tokunaga, Kenta Tamabayashi
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Publication number: 20140262673Abstract: A hydraulic clutch including a clutch drum with an outer cylinder fitted with a plurality of clutch plates and a side wall; a clutch piston that defines together with the clutch drum an engagement oil chamber, and moves in an axial direction to press the clutch plates by hydraulic pressure supplied to the engagement oil chamber; and a cancel plate that defines together with the clutch piston a cancel oil chamber that cancels centrifugal hydraulic pressure. The side wall of the clutch drum is formed with a first oil passage that radially extends and is in communication with the engagement oil chamber, and a second oil passage that radially extends and is in communication with the cancel oil chamber. One of the first and second oil passages is at least partially included in a range of an axial width of the other of the first and second oil passages.Type: ApplicationFiled: May 30, 2014Publication date: September 18, 2014Applicant: AISIN AW CO., LTD.Inventors: Satoru KASUYA, Hiroshi KATOU, Takuya ISHII, Norihiro TOKUNAGA, Kenta TAMABAYASHI
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Patent number: 8794412Abstract: A hydraulic clutch including a clutch drum with an outer cylinder fitted with a plurality of clutch plates and a side wall; a clutch piston that defines together with the clutch drum an engagement oil chamber, and moves in an axial direction to press the clutch plates by hydraulic pressure supplied to the engagement oil chamber; and a cancel plate that defines together with the clutch piston a cancel oil chamber that cancels centrifugal hydraulic pressure. The side wall of the clutch drum is formed with a first oil passage that radially extends and is in communication with the engagement oil chamber, and a second oil passage that radially extends and is in communication with the cancel oil chamber. One of the first and second oil passages is at least partially included in a range of an axial width of the other of the first and second oil passages.Type: GrantFiled: March 26, 2012Date of Patent: August 5, 2014Assignee: Aisin AW Co., Ltd.Inventors: Satoru Kasuya, Hiroshi Katou, Takuya Ishii, Norihiro Tokunaga, Kenta Tamabayashi
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Patent number: 8739951Abstract: A transmission device includes a first clutch and a second clutch that is disposed circumferentially inward of the first clutch so as to overlap with the first clutch as viewed from a radial direction. The first clutch includes a first clutch drum, a first clutch piston that is axially movable by hydraulic pressure supplied to a first engagement side oil chamber on an inner circumferential side of the first clutch drum, and a first cancel plate that defines together with the first clutch piston a first cancel oil chamber that cancels centrifugal hydraulic pressure. The first cancel plate is fastened between the first clutch drum and a second clutch drum of the second clutch.Type: GrantFiled: March 26, 2012Date of Patent: June 3, 2014Assignee: Aisin AW Co., Ltd.Inventors: Satoru Kasuya, Hiroshi Katou, Takuya Ishii, Norihiro Tokunaga, Kenta Tamabayashi
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Publication number: 20130333997Abstract: A fastening portion is formed from a rivet hole of a first side wall portion of a clutch drum, a rivet hole of a second side wall portion of a clutch drum, and a rivet that is inserted into the rivet hole and the rivet hole to hold together the first side wall portion and the second side wall portion. The fastening portion is provided between a first engagement side oil chamber enclosed by the clutch drum and a clutch piston, and a second engagement side oil chamber enclosed by the clutch drum and a clutch piston.Type: ApplicationFiled: March 15, 2012Publication date: December 19, 2013Applicant: AISIN AW CO., LTD.Inventors: Hiroshi Kato, Takuya Ishii, Norihiro Tokunaga, Satoru Kasuya, Kenta Tamabayashi
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Publication number: 20120247907Abstract: A transmission device includes a first clutch and a second clutch that is disposed circumferentially inward of the first clutch so as to overlap with the first clutch as viewed from a radial direction. The first clutch includes a first clutch drum, a first clutch piston that is axially movable by hydraulic pressure supplied to a first engagement side oil chamber on an inner circumferential side of the first clutch drum, and a first cancel plate that defines together with the first clutch piston a first cancel oil chamber that cancels centrifugal hydraulic pressure. The first cancel plate is fastened between the first clutch drum and a second clutch drum of the second clutch.Type: ApplicationFiled: March 26, 2012Publication date: October 4, 2012Applicant: AISIN AW CO., LTD.Inventors: Satoru KASUYA, Hiroshi KATOU, Takuya ISHII, Norihiro TOKUNAGA, Kenta TAMABAYASHI
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Publication number: 20120247905Abstract: A hydraulic clutch including a clutch drum with an outer cylinder fitted with a plurality of clutch plates and a side wall; a clutch piston that defines together with the clutch drum an engagement oil chamber, and moves in an axial direction to press the clutch plates by hydraulic pressure supplied to the engagement oil chamber; and a cancel plate that defines together with the clutch piston a cancel oil chamber that cancels centrifugal hydraulic pressure. The side wall of the clutch drum is formed with a first oil passage that radially extends and is in communication with the engagement oil chamber, and a second oil passage that radially extends and is in communication with the cancel oil chamber. One of the first and second oil passages is at least partially included in a range of an axial width of the other of the first and second oil passages.Type: ApplicationFiled: March 26, 2012Publication date: October 4, 2012Applicant: AISIN AW CO., LTD.Inventors: Satoru KASUYA, Hiroshi KATOU, Takuya ISHII, Norihiro TOKUNAGA, Kenta TAMABAYASHI