Patents by Inventor Yasutaka Kuse
Yasutaka Kuse 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: 9732653Abstract: A reducing agent tank is provided which can improve a heat transfer efficiency to a reducing agent and transfer heat to the reducing agent in a height direction of the reducing agent tank without unevenness. The reducing agent tank includes a container main body which has an upper face and a bottom face and constitutes a space for storing the reducing agent between the upper face and the bottom face, and a heat exchanger which performs heat exchange with the reducing agent. The heat exchanger has penetrating portions and inclined portions. The penetrating portions penetrate to the upper face of the container main body and extend into the space. The inclined portions are inclined relative to the penetrating portions at a position different from each other in an extending direction of the penetrating portions and extend toward a side of the bottom face.Type: GrantFiled: January 8, 2014Date of Patent: August 15, 2017Assignee: KOMATSU LTD.Inventors: Satoshi Ogawa, Taisuke Kusaba, Yasutaka Kuse
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Patent number: 9388725Abstract: A reducing agent tank is provided which enables detachment of a top cover and a heat exchanger while maintaining a long path length of a heat exchanger in a reducing agent tank. A first pipeline and a second pipeline respectively have extension portions which extend from lower ends of a suspended portion along a bottom face toward a side face of a container main body, and rising portions which extend from leading ends of the extension portions along the side face toward an upper face of the container main body. A length of the extension portions along the bottom face is larger than a maximum inside length of an opening. The rising portions and a turning portion form a leading end bent portion, and a rising length of the leading end bent portion is smaller than a minimum inside length passing through a center of the opening.Type: GrantFiled: January 8, 2014Date of Patent: July 12, 2016Assignee: KOMATSU LTD.Inventors: Satoshi Ogawa, Taisuke Kusaba, Yasutaka Kuse
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Publication number: 20150377112Abstract: A reducing agent tank is provided which enables detachment of a top cover and a heat exchanger while maintaining a long path length of a heat exchanger in a reducing agent tank. A first pipeline and a second pipeline respectively have extension portions which extend from lower ends of a suspended portion along a bottom face toward a side face of a container main body, and rising portions which extend from leading ends of the extension portions along the side face toward an upper face of the container main body. A length of the extension portions along the bottom face is larger than a maximum inside length of an opening. The rising portions and a turning portion form a leading end bent portion, and a rising length of the leading end bent portion is smaller than a minimum inside length passing through a center of the opening.Type: ApplicationFiled: January 8, 2014Publication date: December 31, 2015Applicant: KOMATSU LTD.Inventors: Satoshi OGAWA, Taisuke KUSABA, Yasutaka KUSE
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Publication number: 20150192052Abstract: A reducing agent tank is provided which can improve a heat transfer efficiency to a reducing agent and transfer heat to the reducing agent in a height direction of the reducing agent tank without unevenness. The reducing agent tank includes a container main body which has an upper face and a bottom face and constitutes a space for storing the reducing agent between the upper face and the bottom face, and a heat exchanger which performs heat exchange with the reducing agent. The heat exchanger has penetrating portions and inclined portions. The penetrating portions penetrate to the upper face of the container main body and extend into the space. The inclined portions are inclined relative to the penetrating portions at a position different from each other in an extending direction of the penetrating portions and extend toward a side of the bottom face.Type: ApplicationFiled: January 8, 2014Publication date: July 9, 2015Inventors: Satoshi Ogawa, Taisuke Kusaba, Yasutaka Kuse
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Patent number: 8504257Abstract: In a work vehicle, a control unit is configured to control a lock-up hydraulic pressure for controlling switching of a lock-up clutch. The control unit is configured to execute a lock-up slippage control for switching the lock-up clutch into a slippage state when the work vehicle starts moving. The control unit is configured to control the lock-up hydraulic pressure based on work instrument load information, pertaining to a load of a work instrument during execution of the lock-up slippage control.Type: GrantFiled: February 10, 2011Date of Patent: August 6, 2013Assignee: Komatsu Ltd.Inventors: Eiji Yamaguchi, Yasutaka Kuse, Miki Kuse, Reiko Kuse
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Patent number: 8447476Abstract: A lubricating oil supply control device controls a lubricating oil supply amount to a transmission in a construction machine including a torque converter with a lock-up clutch. The lubricating oil supply control device includes a clutch state determining section, a lubricating oil amount detecting section and a lock-up clutch controlling section. The clutch state determining section determines whether or not the lock-up clutch is being coupled. The lubricating oil amount detecting section detects whether or not the lubricating oil supply amount to the transmission is short of a preliminarily set supply amount. The lock-up clutch controlling section decouples the lock-up clutch when the lock-up clutch is being coupled and the lubricating oil supply amount is short of the preliminarily set supply amount.Type: GrantFiled: February 10, 2010Date of Patent: May 21, 2013Assignee: Komatsu Ltd.Inventors: Eiji Yamaguchi, Masaaki Kuma, Yasutaka Kuse, Miki Kuse, Reiko Kuse
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Publication number: 20120245805Abstract: In a work vehicle, a control unit is configured to control a lock-up hydraulic pressure for controlling switching of a lock-up clutch. The control unit is configured to execute a lock-up slippage control for switching the lock-up clutch into a slippage state when the work vehicle starts moving. The control unit is configured to control the lock-up hydraulic pressure based on work instrument load information, pertaining to a load of a work instrument during execution of the lock-up slippage control.Type: ApplicationFiled: February 10, 2011Publication date: September 27, 2012Applicant: KOMATSU LTD.Inventors: Eiji Yamaguchi, Yasutaka Kuse, Takashi Kuse, Miki Kuse, Reiko Kuse
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Publication number: 20110276237Abstract: A lubricating oil supply control device controls a lubricating oil supply amount to a transmission in a construction machine including a torque converter with a lock-up clutch. The lubricating oil supply control device includes a clutch state determining section, a lubricating oil amount detecting section and a lock-up clutch controlling section. The clutch state determining section determines whether or not the lock-up clutch is being coupled. The lubricating oil amount detecting section detects whether or not the lubricating oil supply amount to the transmission is short of a preliminarily set supply amount. The lock-up clutch controlling section decouples the lock-up clutch when the lock-up clutch is being coupled and the lubricating oil supply amount is short of the preliminarily set supply amount.Type: ApplicationFiled: February 10, 2010Publication date: November 10, 2011Applicant: Komatsu Ltd.Inventors: Eiji Yamaguchi, Masaaki Kuma, Takashi Kuse, Yasutaka Kuse, Miki Kuse, Reiko Kuse