Patents by Inventor Kazukata Takei
Kazukata Takei 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: 8073576Abstract: The present invention provides an acceleration sensation evaluating device that evaluates a sensory acceleration of a driver with respect to an expectation value of acceleration, and a vehicle controller that controls a vehicle according to the evaluation results. The evaluation device detects an amount of operation of the vehicle by the driver of when the vehicle is accelerated, detects an amount of vehicle behavior, computes a physical quantity of an expectation value indicating the expectation value of an acceleration performance which the driver expects based on the detected values, computes a sensory physical quantity indicating a sensation of the acceleration which the driver senses, and computes an evaluation value of the acceleration sensation based on difference or ratio between the physical quantity of the expectation value and the sensory physical quantity.Type: GrantFiled: July 4, 2006Date of Patent: December 6, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Akio Matsunaga, Yusuke Nozaki, Masanori Shimada, Eiichi Yasuda, Masahiko Mizuno, Kazukata Takei, Eiichi Ono, Noriyoshi Terazawa, Mitsuteru Kokubun
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Patent number: 7600821Abstract: A seat provides a band-like support for the body sides of a user so as to reduce the supporting pressure on the user's lumbar and to hold the user's upper body stably. In this seat, the center of a load to be received in regions symmetrically divided to a vertical central line of the seat are positioned outside of a back region defined by left and right angulus inferior scapulae and by the upper ends of iliac bones. Moreover, the load ratios in the individual regions are not more than 25% in the region corresponding to a region extended downward from the back region.Type: GrantFiled: July 3, 2002Date of Patent: October 13, 2009Assignee: Delta Tooling Co., Ltd.Inventors: Eiichi Yasuda, Shunichi Doi, Kazukata Takei, Etsunori Fujita, Yumi Ogura, Seiji Kawasaki
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Publication number: 20090043428Abstract: The present invention provides an acceleration sensation evaluating device that evaluates a sensory acceleration of a driver with respect to an expectation value of acceleration, and a vehicle controller that controls a vehicle according to the evaluation results. The evaluation device detects an amount of operation of the vehicle by the driver of when the vehicle is accelerated, detects an amount of vehicle behavior, computes a physical quantity of an expectation value indicating the expectation value of an acceleration performance which the driver expects based on the detected values, computes a sensory physical quantity indicating a sensation of the acceleration which the driver senses, and computes an evaluation value of the acceleration sensation based on difference or ratio between the physical quantity of the expectation value and the sensory physical quantity.Type: ApplicationFiled: July 4, 2006Publication date: February 12, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akio Matsunaga, Yusuke Nozaki, Masanori Shimada, Eiichi Yasuda, Masahiko Mizuno, Kazukata Takei, Eiichi Ono, Noriyoshi Terazawa, Mitsuteru Kokubun
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Patent number: 7104607Abstract: This present invention discloses a seat, comprising: a seat cushion; and a seat back frame connected to the seat cushion, the seat back frames being bent in a range of specified bending angle in a direction of moving the top end backward by a backward load over a predetermined value, by way of a joint provided at an intermediate portion in the vertical direction, such that the seat back frame receives a reaction force corresponding to the bending angle.Type: GrantFiled: September 27, 2004Date of Patent: September 12, 2006Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Delta Tooling Co., Ltd.Inventors: Eiichi Yasuda, Shun'ichi Doi, Kazukata Takei, Kiyokazu Sunami, Etsunori Fujita, Yumi Ogura, Seiji Kawasaki, Kazuyoshi Chizuka, Yasuhide Takata
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Patent number: 7044551Abstract: A seat structure includes a torsion bar 40 disposed along the width direction in the vicinity of the bottom end of a back frame 20, a pelvis supporting plate 50 is connected to the torsion bar 40, and a flat-type supporting member 60 for the seat back is engaged with the vicinity of the bottom end of the pelvis supporting plate 50 and strained. Slack of the flat-type supporting member 60 can be eliminated by the pelvis supporting plate 50 to enhance the appearance. Further, a vibration inputted from the seat back side, and vibrates as if patting on the back of the human body can be absorbed by an elastic force of the torsion bar 40.Type: GrantFiled: January 29, 2004Date of Patent: May 16, 2006Assignee: Delta Tooling Co., Ltd.Inventors: Etsunori Fujita, Kazuyoshi Chizuka, Seiji Kawasaki, Yasuhide Takata, Yumi Ogura, Eiichi Yasuda, Shun'ichi Doi, Kazukata Takei
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Publication number: 20050093352Abstract: This present invention discloses a seat, comprising: a seat cushion; and a seat back frame connected to the seat cushion, the seat back frames being bent in a range of specified bending angle in a direction of moving the top end backward by a backward load over a predetermined value, by way of a joint provided at an intermediate portion in the vertical direction, such that the seat back frame receives a reaction force corresponding to the bending angle.Type: ApplicationFiled: September 27, 2004Publication date: May 5, 2005Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, DELTA TOOLING CO., LTD.Inventors: Eiichi Yasuda, Shun'ichi Doi, Kazukata Takei, Kiyokazu Sunami, Etsunori Fujita, Yumi Ogura, Seiji Kawasaki, Kazuyoshi Chizuka, Yasuhide Takata
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Publication number: 20040212234Abstract: A seat structure includes a torsion bar 40 disposed along the width direction in the vicinity of the bottom end of a back frame 20, a pelvis supporting plate 50 is connected to the torsion bar 40, and a flat-type supporting member 60 for the seat back is engaged with the vicinity of the bottom end of the pelvis supporting plate 50 and strained. Slack of the flat-type supporting member 60 can be eliminated by the pelvis supporting plate 50 to enhance the appearance. Further, a vibration inputted from the seat back side, and vibrates as if patting on the back of the human body can be absorbed by an elastic force of the torsion bar 40.Type: ApplicationFiled: January 29, 2004Publication date: October 28, 2004Applicant: Delta Tooling Co., Ltd.Inventors: Etsunori Fujita, Kazuyoshi Chizuka, Seiji Kawasaki, Yasuhide Takata, Yumi Ogura, Eiichi Yasuda, Shun'ichi Doi, Kazukata Takei
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Publication number: 20030006640Abstract: A seat provides a band-like support for the body sides of a user so as to reduce the supporting pressure on the user's lumbar and to hold the user's upper body stably. In this seat, the center of a load to be received in regions symmetrically divided to a vertical central line of the seat are positioned outside of a back region defined by left and right angulus inferior scapulae and by the upper ends of iliac bones. Moreover, the load ratios in the individual regions are not more than 25% in the region corresponding to a region extended downward from the back region.Type: ApplicationFiled: July 3, 2002Publication date: January 9, 2003Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Eiichi Yasuda, Shunichi Doi, Kazukata Takei, Etsunori Fujita, Yumi Ogura, Seiji Kawasaki
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Patent number: 4669745Abstract: An apparatus for controlling steer angle of rear wheels of a 4-wheel steering vehicle in accordance with the operation of a steering wheel for generating steer angle of front wheels. The apparatus comprises a first member which moves in response to the operation of the steering wheel; a second member which moves in response to the operation of the steering wheel in a direction counter to that of the first member; an output shaft for controlling the steer of the rear wheels; a resilient member disposed between the first member and the output shaft and a controller disposed between the second member and the output shaft for controlling the direction of movement of the output shaft in accordance with the speed of operation of the steering wheel.Type: GrantFiled: September 30, 1985Date of Patent: June 2, 1987Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kazuo Miki, Katsuhiko Fukui, Yasutaka Hayashi, Michio Ishiguro, Kazumasa Sumi, Kazukata Takei