Patents by Inventor Tatsuya Osone
Tatsuya Osone 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: 10288138Abstract: A clutch friction material includes a base material containing a rubber material and a thermosetting resin. The clutch friction material also includes an intermediate layer disposed on the base material. The intermediate layer includes either a glassy carbon structure or a graphite structure formed as a result of thermal curing of the thermosetting resin contained in the base material. In addition, the clutch friction material includes an outermost surface layer disposed on the intermediate layer. The outermost surface layer contains a pyrolysate produced as a result of pyrolysis of rubber and resin components contained in the base material.Type: GrantFiled: September 5, 2014Date of Patent: May 14, 2019Assignee: EXEDY CORPORATIONInventors: Takeshi Yamada, Nobuyasu Watanabe, Hiroki Mori, Takashi Takehara, Shinya Unigame, Kazushige Yoshida, Go Yanagisawa, Masashi Hatano, Tatsuya Osone
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Patent number: 10132374Abstract: A friction engagement element has a friction member including resin, and a metal member having a sliding surface slidable on the friction member. The friction member has an aged layer at an outermost layer of the friction member, and a hardened layer in abutment with an inner side of the aged layer in a thickness direction of the friction member. The sliding surface of the metal member has a plurality of recesses, and a transferred film of the aged layer of the friction member transferred and adhered to insides of the plurality of recesses through sliding between the friction member and the metal member.Type: GrantFiled: September 18, 2013Date of Patent: November 20, 2018Assignees: NISSAN MOTOR CO., LTD., EXEDY Corporation, EXEDY Friction Material Co., LTDInventors: Seiji Terauchi, Kazushige Yoshida, Tatsuya Osone, Takahiro Saruwatari, Nobuyasu Watanabe, Takeshi Yamada, Hiroki Mori, Takashi Takehara, Shinya Unigame
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Patent number: 10100881Abstract: The invention provides a clutch seal which can enhance a durability of a membrane portion which is a constituting part of a seal and is constructed by a rubber-like elastic body, and can inhibit a working fluid from standing in a concave surface of the membrane portion. The clutch seal of the invention is an annular seal interposed between a clutch plate in a dry clutch and a piston pressing the clutch plate, has a middle ring fixed to the piston between an outer ring and an inner ring which are fixed to a clutch housing, and has membrane portions constructed by a rubber-like elastic body respectively between the outer ring and the middle ring and between the inner ring and the middle ring, wherein the middle ring is arranged at an intermediate position of a stroke in an initial shape of the membrane portion.Type: GrantFiled: October 8, 2013Date of Patent: October 16, 2018Assignees: NOK Corporation, Nissan Motor Co., Ltd.Inventors: Koji Tsukamoto, Kuniaki Miyake, Toshihiro Mukaida, Hitoshi Okabe, Atsushi Yokota, Tatsuya Osone, Yuuzo Akasaka, Hiroki Uehara, Jun Furuichi
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Publication number: 20160281810Abstract: A friction engagement element has a friction member including resin, and a metal member having a sliding surface slidable on the friction member. The friction member has an aged layer at an outermost layer of the friction member, and a hardened layer in abutment with an inner side of the aged layer in a thickness direction of the friction member. The sliding surface of the metal member has a plurality of recesses, and a transferred film of the aged layer of the friction member transferred and adhered to insides of the plurality of recesses through sliding between the friction member and the metal member.Type: ApplicationFiled: September 18, 2013Publication date: September 29, 2016Applicant: Nissan Motor Co., Ltd.Inventors: Seiji Terauchi, Kazushige Yoshida, Tatsuya Osone, Takahiro Saruwatari
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Publication number: 20160195150Abstract: A clutch friction material includes a base material containing a rubber material and a thermosetting resin. The clutch friction material also includes an intermediate layer disposed on the base material. The intermediate layer includes either a glassy carbon structure or a graphite structure formed as a result of thermal curing of the thermosetting resin contained in the base material. In addition, the clutch friction material includes an outermost surface layer disposed on the intermediate layer. The outermost surface layer contains a pyrolysate produced as a result of pyrolysis of rubber and resin components contained in the base material.Type: ApplicationFiled: September 5, 2014Publication date: July 7, 2016Inventors: Takeshi YAMADA, Nobuyasu WATANABE, Hiroki MORI, Takashi TAKEHARA, Shinya UNIGAME, Kazushige YOSHIDA, Go YANAGISAWA, Masashi HATANO, Tatsuya OSONE
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Publication number: 20150292572Abstract: The invention provides a clutch seal which can enhance a durability of a membrane portion which is a constituting part of a seal and is constructed by a rubber-like elastic body, and can inhibit a working fluid from standing in a concave surface of the membrane portion. The clutch seal of the invention is an annular seal interposed between a clutch plate in a dry clutch and a piston pressing the clutch plate, has a middle ring fixed to the piston between an outer ring and an inner ring which are fixed to a clutch housing, and has membrane portions constructed by a rubber-like elastic body respectively between the outer ring and the middle ring and between the inner ring and the middle ring, wherein the middle ring is arranged at an intermediate position of a stroke in an initial shape of the membrane portion.Type: ApplicationFiled: October 8, 2013Publication date: October 15, 2015Inventors: Koji Tsukamoto, Kuniaki Miyake, Toshihiro Mukaida, Hitoshi Okabe, Atsushi Yokota, Tatsuya Osone, Yuuzo Akasaka, Hiroki Uehara, Jun Furuichi
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Patent number: 9051976Abstract: A hybrid driving force transmission device includes a motor generator (9), a multi-plate dry clutch (7), a housing cover (60), a dust seal member (62), and a dust collection structure (63). The multi-plate dry clutch (7) is disposed at a position inner than the motor generator (9). The housing cover (60) is provided to cover the motor generator (9) and the multi-plate dry clutch (7), and divides the internal space into a clutch chamber (64) and a motor chamber (65). The dust seal member (62) is disposed at a position radially outside of a clutch chamber open surface (66) and seals between a rotor (92) and an inner wall (60a) of the housing cover (60). The dust collection structure (63) forms a dust collection space (69) in a region radially between the seal surface (68) formed by the dust seal member (62) and the clutch chamber open surface (66).Type: GrantFiled: May 17, 2011Date of Patent: June 9, 2015Assignee: NISSAN MOTOR CO., LTD.Inventors: Takashi Kuwahara, Tomoharu Fuji, Shigeru Ishii, Tatsuya Osone, Kunihiko Nishimura
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Publication number: 20130062980Abstract: A hybrid driving force transmission device includes a motor generator (9), a multi-plate dry clutch (7), a housing cover (60), a dust seal member (62), and a dust collection structure (63). The multi-plate dry clutch (7) is disposed at a position inner than the motor generator (9). The housing cover (60) is provided to cover the motor generator (9) and the multi-plate dry clutch (7), and divides the internal space into a clutch chamber (64) and a motor chamber (65). The dust seal member (62) is disposed at a position radially outside of a clutch chamber open surface (66) and seals between a rotor (92) and an inner wall (60a) of the housing cover (60). The dust collection structure (63) forms a dust collection space (69) in a region radially between the seal surface (68) formed by the dust seal member (62) and the clutch chamber open surface (66).Type: ApplicationFiled: May 17, 2011Publication date: March 14, 2013Inventors: Takashi Kuwahara, Tomoharu Fujii, Shigeru Ishii, Tatsuya Osone, Kunihiko Nishimura