Patents by Inventor Kei Takakuwa
Kei Takakuwa 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: 10520078Abstract: A shift lever device includes a shift knob, a rod member including a first portion. The rod member is configured to cancel limitations on changes in a shift position by moving in a first direction. And the shift lever device includes a button portion including a second portion configured to engage the first portion and a button top protruding from the shift knob. The button portion is configured to move the rod member in the first direction by moving in a second direction when the first portion and the second portion are in contact with each other. And the shift lever device includes an urging member. The urging member is configured to urge the button portion such that the second portion approaches the first portion.Type: GrantFiled: December 7, 2016Date of Patent: December 31, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Kei Takakuwa
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Publication number: 20170167605Abstract: A shift lever device includes a shift knob, a rod member including a first portion. The rod member is configured to cancel limitations on changes in a shift position by moving in a first direction. And the shift lever device includes a button portion including a second portion configured to engage the first portion and a button top protruding from the shift knob. The button portion is configured to move the rod member in the first direction by moving in a second direction when the first portion and the second portion are in contact with each other. And the shift lever device includes an urging member. The urging member is configured to urge the button portion such that the second portion approaches the first portion.Type: ApplicationFiled: December 7, 2016Publication date: June 15, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Kei TAKAKUWA
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Patent number: 9090232Abstract: An ECU calculates the thermal margins of the in-wheel motors, on the basis of the thermal capacities of the in-wheel motors, the allowable limit temperatures, and the motor temperatures. Next, the ECU distributes the total requested torque between the requested torques for each wheel using the percentages of the thermal margins. The ECU controls the operation of an inverter such that the in-wheel motors generate the requested torques for the wheels. Thus, the four in-wheel motors generate uniform amounts of heat.Type: GrantFiled: November 8, 2011Date of Patent: July 28, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuichi Onoda, Kei Takakuwa, Hideki Fukudome, Satoshi Takahashi
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Publication number: 20140343816Abstract: An ECU calculates the thermal margins of the in-wheel motors, on the basis of the thermal capacities of the in-wheel motors, the allowable limit temperatures, and the motor temperatures. Next, the ECU distributes the total requested torque between the requested torques for each wheel using the percentages of the thermal margins. The ECU controls the operation of an inverter such that the in-wheel motors generate the requested torques for the wheels. Thus, the four in-wheel motors generate uniform amounts of heat.Type: ApplicationFiled: November 8, 2011Publication date: November 20, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuichi Onoda, Kei Takakuwa, Hideki Fukudome, Satoshi Takahashi
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Patent number: 8541681Abstract: A cable fixing member formed of one belt-like metal plate bent to fix three cables to a structure includes two flanges formed at both ends of the metal plate, two C-shaped holding portions formed to be bent into C-shapes in cross section on both sides respectively of a reference portion of the metal plate to hold two of the three cables in the C-shaped holding portions respectively, and two semicircular arc portions formed to be bent into semicircular arc shapes in cross section between the C-shaped holding portions and the flanges on both the sides respectively of the reference portion of the metal plate so that the two semicircular arc portions face each other to hold one of the three cables therebetween. The three cables are held so that the three cables are arranged to form a triangular shape in transverse cross sectional view.Type: GrantFiled: June 10, 2011Date of Patent: September 24, 2013Assignees: Hitachi Cable, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Hirotaka Eshima, Yoji Kobayashi, Satoshi Murata, Kei Takakuwa
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Publication number: 20120085577Abstract: A cable fixing member formed of one belt-like metal plate bent to fix three cables to a structure includes two flanges formed at both ends of the metal plate, two C-shaped holding portions formed to be bent into C-shapes in cross section on both sides respectively of a reference portion of the metal plate to hold two of the three cables in the C-shaped holding portions respectively, and two semicircular arc portions formed to be bent into semicircular arc shapes in cross section between the C-shaped holding portions and the flanges on both the sides respectively of the reference portion of the metal plate so that the two semicircular arc portions face each other to hold one of the three cables therebetween. The three cables are held so that the three cables are arranged to form a triangular shape in transverse cross sectional view.Type: ApplicationFiled: June 10, 2011Publication date: April 12, 2012Applicants: Toyota Jidosha Kabushiki Kaisha, Hitachi Cable, Ltd.Inventors: Hirotaka Eshima, Yoji Kobayashi, Satoshi Murata, Kei Takakuwa
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Patent number: 7120520Abstract: An energy management device is provided in a first energy related system and manages transfer of energy between the first energy related system and a second energy related system remote from the first energy related system, each of the first and second energy related systems including, as an energy related element, at least one of an accumulation unit which accumulates energy, a consumption unit which consumes energy, and a generation unit which generates energy. In the energy management device, a communication unit exchanges information between the first energy related system and the second energy related system, the information related to at least one of the energy consumption, the energy accumulation and the energy generation in each of the first and second energy related systems. A supply control unit controls supplying of energy from one of the first and second energy related systems to the other based on contents of the exchanged information.Type: GrantFiled: June 1, 2004Date of Patent: October 10, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keisuke Seto, Hiroshi Isono, Kei Takakuwa, Takahiro Kodaira
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Publication number: 20060142915Abstract: A moving body energy management apparatus is installed in a moving body having a supply part that supplies energy and a consumption part that consumes the energy supplied from the supply part. The consumption part includes a first part that consumes the energy for moving the moving body, which is a first function, and a second part that consumes the energy for performing a function other than moving of the moving body, which is a second function relating to the moving body. The moving body energy management apparatus includes an obtaining part obtaining environmental information relating to an environment in which the moving body is placed. A control part controls at least one of the consumption part and the supply part based on the environmental information obtained by the obtaining part such that the first function and the second function are both performed.Type: ApplicationFiled: June 23, 2004Publication date: June 29, 2006Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Isono, Keisuke Seto, Takahiro Kodaira, Kei Takakuwa
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Publication number: 20040249516Abstract: An energy management device is provided in a first energy related system and manages transfer of energy between the first energy related system and a second energy related system remote from the first energy related system, each of the first and second energy related systems including, as an energy related element, at least one of an accumulation unit which accumulates energy, a consumption unit which consumes energy, and a generation unit which generates energy. In the energy management device, a communication unit exchanges information between the first energy related system and the second energy related system, the information related to at least one of the energy consumption, the energy accumulation and the energy generation in each of the first and second energy related systems. A supply control unit controls supplying of energy from one of the first and second energy related systems to the other based on contents of the exchanged information.Type: ApplicationFiled: June 1, 2004Publication date: December 9, 2004Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keisuke Seto, Hiroshi Isono, Kei Takakuwa, Takahiro Kodaira
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Patent number: 6408707Abstract: A plate spring body (support member) elastically supports an inner gear (second bevel gear) relative to an outer gear (first bevel gear). Ring springs (fluctuation suppressing member) are further provided to reinforce the elastic support, so as to suppress fluctuation of the inner gear along a direction nearly perpendicular to an axis connecting the center of rotation of the outer gear and contact part with a hypoid pinion gear (third bevel gear).Type: GrantFiled: November 13, 2000Date of Patent: June 25, 2002Assignees: Toyota Jidosha Kabushiki Kaisha, Nissei CorporationInventors: Yukihide Kimura, Hideo Osanai, Kei Takakuwa, Yoshikazu Kameda, Norihiro Yoshida, Yoshimi Kajitani, Naohito Ino, Katsutoshi Mizuno, Takatomo Kutsuna
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Patent number: 6339967Abstract: The invention concerns a hypoid gear structure which includes a hypoid ring gear disposed coaxially with a rotation axis and a hypoid pinion gear provided with a rotation axis of an electric motor and engaging with the hypoid ring gear. The hypoid gear includes a first toothed portion disposed on the inner side and a second toothed portion disposed on the outer side, and one of the first toothed portion and the second toothed portion is urged by a spring to press the hypoid pinion gear.Type: GrantFiled: November 2, 2000Date of Patent: January 22, 2002Assignees: Toyota Jidosha Kabushiki Kaisha, Nissei CorporationInventors: Hiroaki Tanaka, Osamu Ogawa, Yoshimi Kajitani, Kei Takakuwa, Toshiki Ohshima, Katsutoshi Mizuno, Naohito Ino, Shigeo Ishihara
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Patent number: 6170349Abstract: A hypoid gear structure which includes a hypoid ring gear disposed coaxially with a rotation axis, and a hypoid pinion gear provided with a rotation axis of an electric motor and engaging with the hypoid ring gear. The hypoid ring gear includes a first toothed portion disposed on the inner side and a second toothed portion disposed on the outer side, and one of the first toothed portion and the second toothed portion is urged by a spring to press the hypoid pinion gear.Type: GrantFiled: October 9, 1998Date of Patent: January 9, 2001Assignees: Toyota Jidosha Kabushiki Kaisha, Nissei CorporationInventors: Hiroaki Tanaka, Osamu Ogawa, Yoshimi Kajitani, Kei Takakuwa, Toshiki Ohshima, Katsutoshi Mizuno, Naohito Ino, Shigeo Ishihara