Patents by Inventor Kazuhiko Yokoyama
Kazuhiko Yokoyama 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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Publication number: 20240128830Abstract: A component comprising: a motor accommodating portion that accommodates a motor; an inverter accommodating portion that accommodates an inverter; a coupling portion that couples the motor accommodating portion and the inverter accommodating portion and is integrally formed with the motor accommodating portion and the inverter accommodating portion; and an oil passage that is formed in the coupling portion in a manner of extending along an axial direction of the motor.Type: ApplicationFiled: February 22, 2022Publication date: April 18, 2024Applicant: JATCO LtdInventor: Kazuhiko YOKOYAMA
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Patent number: 10088025Abstract: An automatic transmission for an electric vehicle includes: a belt type continuously variable transmission mechanism; a constantly meshed parallel shaft type gear transmission mechanism which is connected to an output portion of the belt type continuously variable transmission mechanism, and which has a plurality of shift stages; an input gear which is disposed to the input shaft to be rotated relative to the input shaft, and which is drivingly connected to one of a plurality of shift gears fixed to an output side shaft of the constantly meshed parallel shaft type gear transmission mechanism; and an engaging clutch mechanism which is disposed to the input shaft, and which selectively connects one of the input portion of the belt type continuously variable transmission mechanism and the input gear to the main electric motor.Type: GrantFiled: September 4, 2014Date of Patent: October 2, 2018Assignee: JATCO LtdInventors: Atsushi Yamada, Toshiaki Segawa, Toshiyuki Okamoto, Kazuhiko Yokoyama, Kazuo Oguri, Takuya Yamazaki
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Patent number: 10054202Abstract: A torque cam device includes: a drive cam member; a driven cam member; and an intermediate cam member which includes a second drive cam surface that is formed on one end, and that is arranged to be abutted on the first drive cam surface, a second driven cam surface that is formed on the other end, and that is arranged to be abutted on the first driven cam surface, and which is arranged to be rotated relative to the driven cam member and the driven cam member, the first and second drive cam surfaces being abutted on each other when a power is transmitted from the drive cam member to the driven cam member, the first and second driven cam surfaces being abutted on each other when the power is transmitted from the driven cam member to the drive cam member.Type: GrantFiled: September 4, 2014Date of Patent: August 21, 2018Assignee: JATCO LtdInventor: Kazuhiko Yokoyama
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Publication number: 20180080534Abstract: A torque cam device for an automatic transmission including: a drive cam member; and a driven cam member, each of the first drive cam surface and the first driven cam surface including an entire annular circumference equally divided into at least two sections each having a helical curved surface according to a cam angle, and connection portions formed between the equally divided helical curved surfaces, and at least one of the helical curved surfaces of the first drive cam surface and the first driven cam surface having a guide groove which is continuous in an entire circumference, and which is arranged to guide a movement of the ball.Type: ApplicationFiled: February 1, 2016Publication date: March 22, 2018Applicant: JATCO LtdInventors: Kazuhiko YOKOYAMA, Hideyuki FUKUI, Masato TANAKA, Tatsuo YOKOTE, Ichirou TSUCHIYA
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Publication number: 20160208892Abstract: A torque cam device includes: a drive cam member; a driven cam member; and an intermediate cam member which includes a second drive cam surface that is formed on one end, and that is arranged to be abutted on the first drive cam surface, a second driven cam surface that is formed on the other end, and that is arranged to be abutted on the first driven cam surface, and which is arranged to be rotated relative to the driven cam member and the driven cam member, the first and second drive cam surfaces being abutted on each other when a power is transmitted from the drive cam member to the driven cam member, the first and second driven cam surfaces being abutted on each other when the power is transmitted from the driven cam member to the drive cam member.Type: ApplicationFiled: September 4, 2014Publication date: July 21, 2016Applicant: JATCO LtdInventor: Kazuhiko YOKOYAMA
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Publication number: 20160208896Abstract: An automatic transmission for an electric vehicle includes: a belt type continuously variable transmission mechanism; a constantly meshed parallel shaft type gear transmission mechanism which is connected to an output portion of the belt type continuously variable transmission mechanism, and which has a plurality of shift stages; an input gear which is disposed to the input shaft to be rotated relative to the input shaft, and which is drivingly connected to one of a plurality of shift gears fixed to an output side shaft of the constantly meshed parallel shaft type gear transmission mechanism; and an engaging clutch mechanism which is disposed to the input shaft, and which selectively connects one of the input portion of the belt type continuously variable transmission mechanism and the input gear to the main electric motor.Type: ApplicationFiled: September 4, 2014Publication date: July 21, 2016Applicant: JATCO LtdInventors: Atsushi YAMADA, Toshiaki SEGAWA, Toshiyuki OKAMOTO, Kazuhiko YOKOYAMA, Kazuo OGURI, Takuya YAMAZAKI
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Patent number: 8549952Abstract: A robot includes a base, a plurality of link mechanisms, at least one drive device, and a controller. The plurality of link mechanisms are provided on the base. Adjacent link mechanisms among the plurality of link mechanisms are connectable to each other. The at least one drive device is to bend and extend the plurality of link mechanisms. The controller is configured to control the at least one drive device.Type: GrantFiled: April 19, 2011Date of Patent: October 8, 2013Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Kenji Matsukuma, Takayuki Nakamura, Kazuhiko Yokoyama, Kazuhiro Fukudome
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Publication number: 20110192247Abstract: A robot includes a base, a plurality of link mechanisms, at least one drive device, and a controller. The plurality of link mechanisms are provided on the base. Adjacent link mechanisms among the plurality of link mechanisms are connectable to each other. The at least one drive device is to bend and extend the plurality of link mechanisms. The controller is configured to control the at least one drive device.Type: ApplicationFiled: April 19, 2011Publication date: August 11, 2011Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kenji MATSUKUMA, Takayuki Nakamura, Kazuhiko Yokoyama, Kazuhiro Fukudome
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Patent number: 7950710Abstract: A robot includes a base unit, at least two link mechanisms arranged on the base unit, drive units capable of bending and expanding the link mechanisms, and a control unit controlling the drive units. At least one drive unit has a drive force larger than those of the other drive units, and the other drive units are passively displaced by external forces larger than their own drive forces.Type: GrantFiled: September 17, 2009Date of Patent: May 31, 2011Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Kenji Matsukuma, Takayuki Nakamura, Kazuhiko Yokoyama, Kazuhiro Fukudome
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Publication number: 20100010670Abstract: A robot includes a base unit, at least two link mechanisms arranged on the base unit, drive units capable of bending and expanding the link mechanisms, and a control unit controlling the drive units. At least one drive unit has a drive force larger than those of the other drive units, and the other drive units are passively displaced by external forces larger than their own drive forces.Type: ApplicationFiled: September 17, 2009Publication date: January 14, 2010Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kenji Matsukuma, Takayuki Nakamura, Kazuhiko Yokoyama, Kazuhiro Fukudome
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Publication number: 20060215927Abstract: The present invention relates to a signal processing apparatus and a method, a recording medium, and a program, in which portions except an edge can be smoothed while the edge whose change in pixel value is steep is held correctly. A pixel of attention is determined in step S11, and a neighbouring pixel is determined in step S12. In step S13, a difference in pixel values between the pixel of attention and each neighbouring pixel is calculated. In step S14, according to a relationship in size between the difference and a threshold value ?., flags are raised for the neighbouring pixel and a neighbouring pixel which are symmetrical. Furthermore, a flag is also raised for a neighbouring pixel away from, in view of the pixel of attention, the symmetrical neighbouring pixel for which the flag is raised. In step S15, 7-pixel taps centered around the pixel of attention are averaged by weight.Type: ApplicationFiled: April 19, 2004Publication date: September 28, 2006Inventors: Shintaro Okada, Kazuhiko Ueda, Mitsuyasu Asano, Takeshi Kubozono, Kazuhiko Yokoyama
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Patent number: 6688274Abstract: In a motorcycle intake structure, an air cleaner is provided under a sheet and an intake passage is connected to an upper opening of the air cleaner. The intake passage is formed by the sheet, a rear fender and a side cover. An inlet port from the outside of the intake passage opens rearward in a upper rear portion of the side cover. This motorcycle intake structure forms a smooth intake airflow with reduced intake resistance and free from influence by dirt or other debris.Type: GrantFiled: October 5, 2001Date of Patent: February 10, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kazuhiko Yokoyama, Takanori Okuma, Keisuke Inomoto, Shoji Yamamoto
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Publication number: 20020040699Abstract: In a motorcycle intake structure, an air cleaner is provided under a sheet and an intake passage is connected to an upper opening of the air cleaner. The intake passage is formed by the sheet, a rear fender and a side cover. An inlet port from the outside of the intake passage opens rearward in a upper rear portion of the side cover. This motorcycle intake structure forms a smooth intake airflow with reduced intake resistance and free from influence by dirt or other debris.Type: ApplicationFiled: October 5, 2001Publication date: April 11, 2002Inventors: Kazuhiko Yokoyama, Takanori Okuma, Keisuke Inomoto, Shoji Yamamoto
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Patent number: D522924Type: GrantFiled: August 2, 2005Date of Patent: June 13, 2006Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiko Yokoyama, Manabu Ichikawa, Tetsuya Nakazawa, Kazuhiro Kudo
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Patent number: D374416Type: GrantFiled: February 28, 1994Date of Patent: October 8, 1996Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shiro Miyamoto, Kazuhiko Yokoyama
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Patent number: D384601Type: GrantFiled: January 17, 1996Date of Patent: October 7, 1997Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tadao Hiruma, Kazuhiko Yokoyama
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Patent number: D389780Type: GrantFiled: June 26, 1996Date of Patent: January 27, 1998Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Komatsu, Kazuhiko Yokoyama
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Patent number: D412464Type: GrantFiled: June 29, 1998Date of Patent: August 3, 1999Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yoshikazu Ichihara, Kazuhiko Yokoyama
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Patent number: D428363Type: GrantFiled: September 2, 1999Date of Patent: July 18, 2000Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Munehiro Sugimoto, Kazuhiko Yokoyama, Takeshi Tajima
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Patent number: D746179Type: GrantFiled: July 31, 2013Date of Patent: December 29, 2015Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroaki Tsukui, Kazuhiko Yokoyama