Patents by Inventor Takato Ishihata
Takato Ishihata 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: 11220949Abstract: An exhaust silencer device which is interposed in an exhaust passage in a vehicle to reduce exhaust noise comprises a sub-muffler which is interposed in the exhaust passage and has an expansion chamber formed therein; an inlet pipe which is airtightly inserted through an inlet opening of the sub-muffler; and an outlet pipe which is airtightly inserted through an outlet opening of the sub-muffler, wherein the inlet pipe and the outlet pipe are formed with openings (small apertures, non-joined portions) only in their upper half area and their lower half area is sealed without having the openings.Type: GrantFiled: October 26, 2018Date of Patent: January 11, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, FUTABA INDUSTRIAL CO., LTD.Inventors: Taiki Teramoto, Takato Ishihata, Takehiro Miura, Akira Yamamoto
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Publication number: 20190136740Abstract: An exhaust silencer device which is interposed in an exhaust passage in a vehicle to reduce exhaust noise comprises a sub-muffler which is interposed in the exhaust passage and has an expansion chamber formed therein; an inlet pipe which is airtightly inserted through an inlet opening of the sub-muffler; and an outlet pipe which is airtightly inserted through an outlet opening of the sub-muffler, wherein the inlet pipe and the outlet pipe are formed with openings (small apertures, non-joined portions) only in their upper half area and their lower half area is sealed without having the openings.Type: ApplicationFiled: October 26, 2018Publication date: May 9, 2019Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, FUTABA INDUSTRIAL CO., LTD.Inventors: Taiki TERAMOTO, Takato ISHIHATA, Takehiro MIURA, Akira YAMAMOTO
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Patent number: 10006328Abstract: An exhaust heat recovery device structure includes: an exhaust pipe; a catalytic converter that is connected to the exhaust pipe; an exhaust heat recovery device that is disposed further toward a vehicle rear side than the catalytic converter, and is disposed at an inner side of a floor tunnel that is formed at a vehicle floor portion, and a water pipe of cooling water is connected to a vehicle transverse direction one side of the exhaust heat recovery device, and the exhaust heat recovery device carries out heat exchange between the cooling water and the gas; and a connecting pipe that, at the inner side of the floor tunnel, connects the catalytic converter and the exhaust heat recovery device, and that is bent or curved toward the vehicle transverse direction one side with respect to a vehicle front side.Type: GrantFiled: October 14, 2015Date of Patent: June 26, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Oya, Toshio Murata, Takato Ishihata
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Patent number: 9863304Abstract: An exhaust heat recovery device of the present invention has: a first pipe through which exhaust from an engine flows; a second pipe that branches-off from the first pipe, and at which is disposed a heat recovery apparatus that carries out heat exchange with the exhaust and recovers exhaust heat; a valve member that adjusts an amount of flow of the exhaust that flows-in from the first pipe to the second pipe; and plural driving members that drive the valve member.Type: GrantFiled: May 14, 2015Date of Patent: January 9, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshikazu Shinpo, Yukihisa Matsuda, Takato Ishihata, Toshio Murata
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Patent number: 9458751Abstract: An exhaust heat recovery control device includes a recovered heat adjusting unit configured to adjust an amount of heat recovered of exhaust gas by an exhaust heat recoverer recovering heat of exhaust gas and a control unit configured to control the recovered heat adjusting unit so as to prevent or suppress freezing in an exhaust pipe based on a traveling history of a vehicle on which the exhaust heat recovery control device is mounted when the freezing in the exhaust pipe is predicted.Type: GrantFiled: January 27, 2015Date of Patent: October 4, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takato Ishihata, Yuichiro Hirata, Toshio Murata, Nakaya Takagaki, Hideyuki Komitsu, Yojiro Iriyama, Kazutoshi Wakatsuki
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Patent number: 9400052Abstract: A gasket in which a high sealing property can be certainly ensured is provided. A gasket 1 is to be interposed between a first flange 21 of a first exhaust pipe 11 and a second flange 22 of a second exhaust pipe 12 in a state where the gasket is fitted onto an end portion of the first exhaust pipe, in order to seal a gap between end portions of the first and second exhaust pipes 11, 12. The gasket 1 includes a first sealing portion 51 and a second sealing portion 52. The first sealing portion has a first butting surface 51a having a tapered shape corresponding to a tapered shape of a first tapered inner circumferential surface 27a of the first flange, and a first projecting portion 51b. The first sealing portion is formed in a radially outer side of the gasket. The second sealing portion has a second butting surface 52a having a tapered shape corresponding to a tapered shape of a second tapered inner circumferential surface of the second flange, and a second projecting portion 52b.Type: GrantFiled: July 24, 2015Date of Patent: July 26, 2016Assignees: Nippon Pillar Packing Co., Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takato Ishihata, Osamu Sawai, Hiroki Tanabe, Yuji Yanagitake, Yuta Sato
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Publication number: 20160186625Abstract: An exhaust heat recovery device structure includes: an exhaust pipe; a catalytic converter that is connected to the exhaust pipe; an exhaust heat recovery device that is disposed further toward a vehicle rear side than the catalytic converter, and is disposed at an inner side of a floor tunnel that is formed at a vehicle floor portion, and a water pipe of cooling water is connected to a vehicle transverse direction one side of the exhaust heat recovery device, and the exhaust heat recovery device carries out heat exchange between the cooling water and the gas; and a connecting pipe that, at the inner side of the floor tunnel, connects the catalytic converter and the exhaust heat recovery device, and at which, in plan view, a vehicle rear side is bent or curved toward the vehicle transverse direction one side with respect to a vehicle front side.Type: ApplicationFiled: October 14, 2015Publication date: June 30, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi OYA, Toshio MURATA, Takato ISHIHATA
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Publication number: 20160025223Abstract: A gasket in which a high sealing property can be certainly ensured is provided. A gasket 1 is to be interposed between a first flange 21 of a first exhaust pipe 11 and a second flange 22 of a second exhaust pipe 12 in a state where the gasket is fitted onto an end portion of the first exhaust pipe, in order to seal a gap between end portions of the first and second exhaust pipes 11, 12. The gasket 1 includes a first sealing portion 51 and a second sealing portion 52. The first sealing portion has a first butting surface 51a having a tapered shape corresponding to a tapered shape of a first tapered inner circumferential surface 27a of the first flange, and a first projecting portion 51b. The first sealing portion is formed in a radially outer side of the gasket. The second sealing portion has a second butting surface 52a having a tapered shape corresponding to a tapered shape of a second tapered inner circumferential surface of the second flange, and a second projecting portion 52b.Type: ApplicationFiled: July 24, 2015Publication date: January 28, 2016Applicants: Nippon Pillar Packing Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Takato ISHIHATA, Osamu SAWAI, Hiroki TANABE, Yuji YANAGITAKE, Yuta SATO
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Publication number: 20150354438Abstract: An exhaust heat recovery device of the present invention has: a first pipe through which exhaust from an engine flows; a second pipe that branches-off from the first pipe, and at which is disposed a heat recovery apparatus that carries out heat exchange with the exhaust and recovers exhaust heat; a valve member that adjusts an amount of flow of the exhaust that flows-in from the first pipe to the second pipe; and plural driving members that drive the valve member.Type: ApplicationFiled: May 14, 2015Publication date: December 10, 2015Inventors: Yoshikazu SHINPO, Yukihisa MATSUDA, Takato ISHIHATA, Toshio MURATA
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Publication number: 20150275739Abstract: A heat recovery unit is disposed in second piping branching from first piping in which an exhaust gas from an engine flows. An actuator driving a valve member of the first piping is arranged to be out of contact with a flow path for an engine coolant.Type: ApplicationFiled: March 20, 2015Publication date: October 1, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takato ISHIHATA, Toshio MURATA, Yuichirou HIRATA, Yukihisa MATSUDA, Tadashi NAKAGAWA
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Publication number: 20150218998Abstract: An exhaust heat recovery control device includes a recovered heat adjusting unit configured to adjust an amount of heat recovered of exhaust gas by an exhaust heat recoverer recovering heat of exhaust gas and a control unit configured to control the recovered heat adjusting unit so as to prevent or suppress freezing in an exhaust pipe based on a traveling history of a vehicle on which the exhaust heat recovery control device is mounted when the freezing in the exhaust pipe is predicted.Type: ApplicationFiled: January 27, 2015Publication date: August 6, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takato ISHIHATA, Yuichiro HIRATA, Toshio MURATA, Nakaya TAKAGAKI, Hideyuki KOMITSU, Yojiro IRIYAMA, Kazutoshi WAKATSUKI
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Patent number: 8950731Abstract: An exhaust valve structure includes: an inner cylindrical portion that forms an introducing passage of exhaust gas and that has a stay member; a valve element that closes or opens the introducing passage; and a wire mesh that is fixed to the stay member and that contacts the valve element when the introducing passage is closed. The wire mesh is formed in a shape such that a diameter of the wire mesh gradually increases toward a downstream side of the introducing passage and a load exerted on the stay member when the valve element contacts the wire mesh is distributed in a diameter-increasing direction in which the diameter of the wire mesh increases.Type: GrantFiled: March 7, 2011Date of Patent: February 10, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, Futaba Industrial Co., LtdInventors: Takato Ishihata, Shuichi Kizawa, Minato Tomuro, Yoshihiko Suzuki, Arata Kobayashi, Masafumi Wada, Shigeru Fukuoka, Shigeomi Hamakawa
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Patent number: 8746785Abstract: An exhaust heat recovery apparatus (3) is installed below a floor supported by both side members (11, 12) of a vehicle to recover heat from exhaust gas passing through an exhaust pipe (1) of an internal combustion engine. Assistance members (15, 16), which extend in the fore-and-aft direction of the vehicle, are provided between the both side members (11, 12) of the vehicle. The exhaust heat recovery apparatus (3) is installed close to one of the assistance members (15, 16).Type: GrantFiled: January 11, 2013Date of Patent: June 10, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takato Ishihata, Mamoru Yashima, Yoshihiro Kamiya
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Patent number: 8448988Abstract: An exhaust heat recovery apparatus is installed below a floor supported by both side members of a vehicle to recover heat from exhaust gas passing through an exhaust pipe of an internal combustion engine. Assistance members, which extend in the fore-and-aft direction of the vehicle, are provided between the both side members of the vehicle. The exhaust heat recovery apparatus is installed close to one of the assistance members.Type: GrantFiled: April 23, 2007Date of Patent: May 28, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takato Ishihata, Mamoru Yashima, Yoshihiro Kamiya
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Publication number: 20130127209Abstract: An exhaust heat recovery apparatus (3) is installed below a floor supported by both side members (11, 12) of a vehicle to recover heat from exhaust gas passing through an exhaust pipe (1) of an internal combustion engine. Assistance members (15, 16), which extend in the fore-and-aft direction of the vehicle, are provided between the both side members (11, 12) of the vehicle. The exhaust heat recovery apparatus (3) is installed close to one of the assistance members (15, 16).Type: ApplicationFiled: January 11, 2013Publication date: May 23, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takato ISHIHATA, Mamoru YASHIMA, Yoshihiro KAMIYA
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Publication number: 20110215272Abstract: An exhaust valve structure includes: an inner cylindrical portion that forms an introducing passage of exhaust gas and that has a stay member; a valve element that closes or opens the introducing passage; and a wire mesh that is fixed to the stay member and that contacts the valve element when the introducing passage is closed. The wire mesh is formed in a shape such that a diameter of the wire mesh gradually increases toward a downstream side of the introducing passage and a load exerted on the stay member when the valve element contacts the wire mesh is distributed in a diameter-increasing direction in which the diameter of the wire mesh increases.Type: ApplicationFiled: March 7, 2011Publication date: September 8, 2011Applicants: Toyota Jidosha Kabushiki Kaisha, Futaba Industrial Co., LtdInventors: Takato Ishihata, Shuichi Kizawa, Minato Tomuro, Yoshihiko Suzuki, Arata Kobayashi, Masafumi Wada, Shigeru Fukuoka, Shigeomi Hamakawa
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Publication number: 20100115934Abstract: An exhaust heat recovery apparatus is installed below a floor supported by both side members of a vehicle to recover heat from exhaust gas passing through an exhaust pipe of an internal combustion engine. Assistance members, which extend in the fore-and-aft direction of the vehicle, are provided between the both side members of the vehicle. The exhaust heat recovery apparatus is installed close to one of the assistance members.Type: ApplicationFiled: April 23, 2007Publication date: May 13, 2010Applicant: Toyota Jidosha Kabushiki KaishaInventors: Takato Ishihata, Mamoru Yashima, Yoshihiro Kamiya
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Patent number: 4637100Abstract: A hose clamping device has a steel clamp band adapted to be tightened around an elastic hose in a ring-like form such that its opposite ends overlap each other. A tightening mechanism is provided on a portion of the band near the underlying end thereof and adapted to pull or push the overlying end, thereby tightening or loosening the band on the hose. A stopper is provided on a portion of the band ahead of the overlying end and is adapted to be contacted by the overlying end, so as to stop the advance of the same. The stopper is constituted by a tab-like portion cut out from a portion of the band and raised in such a manner that the upper surface thereof faces the advance of the overlying end, so as to be pressed down by the overlying end when the latter is pulled by the tightening means. Any excessive tightening by the tightening mechanism only causes the stopper to bend towards the cut out by the pressure applied by the overlying end of the band.Type: GrantFiled: April 28, 1986Date of Patent: January 20, 1987Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takato Ishihata