Patents by Inventor Katsunori YAMASHITA
Katsunori YAMASHITA 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: 20250067333Abstract: A power transmission device includes: a case that accommodates a power transmission mechanism; a strainer disposed to face a bottom wall portion in the case; a suction port for oil provided in a portion of the strainer facing the bottom wall portion; and a magnet disposed between the bottom wall portion and the strainer in the case. The magnet and the suction port are provided to be displaced from each other when viewed from a facing direction in which the strainer and the bottom wall portion face each other, and the suction port is provided with an opening facing a magnet side.Type: ApplicationFiled: March 23, 2023Publication date: February 27, 2025Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.Inventors: Akira TSUCHIDA, Katsunori YAMASHITA, Tomoya OTAKI, Tsutomu ITOU
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Patent number: 12185457Abstract: The control unit includes a wiring board on which a connector is disposed. The connector is disposed on a back surface of the wiring board, the back surface being a back surface on a back side of a facing surface facing a body of the control unit. The wiring board includes legs protruding from the back surface on the back side of the facing surface facing the body.Type: GrantFiled: June 2, 2020Date of Patent: December 31, 2024Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Yusuke Sato, Hideyuki Mamiya, Katsunori Yamashita, Hirohisa Yukawa, Akira Suwabayashi
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Patent number: 11859714Abstract: A power transmission device includes a power transmission mechanism, an oil pump, a first electric wire, a controller and a control unit. The power transmission mechanism is arranged in a first chamber. The oil pump is arranged in a second chamber. The control unit is connected with the controller via the first electric wire. The first electric wire is provided inside the second chamber, and is arranged at a position that does not overlap with the oil pump when viewed along a first direction that is a direction facing from the oil pump to the controller.Type: GrantFiled: July 21, 2020Date of Patent: January 2, 2024Assignees: Jatco Ltd, Nissan Motor Co., Ltd.Inventors: Hirohisa Yukawa, Katsunori Yamashita, Hideyuki Mamiya
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Publication number: 20220349469Abstract: A power transmission device includes a power transmission mechanism, an oil pump, a first electric wire, a controller and a control unit. The power transmission mechanism is arranged in a first chamber. The oil pump is arranged in a second chamber. The control unit is connected with the controller via the first electric wire. The first electric wire is provided inside the second chamber, and is arranged at a position that does not overlap with the oil pump when viewed along a first direction that is a direction facing from the oil pump to the controller.Type: ApplicationFiled: July 21, 2020Publication date: November 3, 2022Inventors: Hirohisa YUKAWA, Katsunori YAMASHITA, Hideyuki MAMIYA
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Publication number: 20220248529Abstract: The control unit includes a wiring board on which a connector is disposed. The connector is disposed on a back surface of the wiring board, the back surface being a back surface on a back side of a facing surface facing a body of the control unit. The wiring board includes legs protruding from the back surface on the back side of the facing surface facing the body.Type: ApplicationFiled: June 2, 2020Publication date: August 4, 2022Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.Inventors: Yusuke SATO, Hideyuki MAMIYA, Katsunori YAMASHITA, Hirohisa YUKAWA, Akira SUWABAYASHI
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Patent number: 10981524Abstract: Provided is an electric control unit which is configured to switch the functions of an LCC, an HSD, and an LSD depending on a load to be connected. A power-supply-side switching element 102 is provided in a path L1 between a power supply 401 and a connector terminal 301. A ground-side switching element 106 is provided in a path L2 between a ground 402 and a connector terminal 302. A freewheeling diode 105 is provided in a path L3 connected to a connection point P1 between the power-supply-side switching element 102 and the connector terminal 301 and a connection point P2 between the ground-side switching element 106 and the connector terminal 302. A switching element 104 is provided in the path L3.Type: GrantFiled: June 12, 2017Date of Patent: April 20, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroshi Kanno, Hiroshi Usami, Yasuhiko Nagata, Masataka Ota, Katsunori Yamashita
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Publication number: 20190176726Abstract: Provided is an electric control unit which is configured to switch the functions of an LCC, an HSD, and an LSD depending on a load to be connected. A power-supply-side switching element 102 is provided in a path L1 between a power supply 401 and a connector terminal 301. A ground-side switching element 106 is provided in a path L2 between a ground 402 and a connector terminal 302. A freewheeling diode 105 is provided in a path L3 connected to a connection point P1 between the power-supply-side switching element 102 and the connector terminal 301 and a connection point P2 between the ground-side switching element 106 and the connector terminal 302. A switching element 104 is provided in the path L3.Type: ApplicationFiled: June 12, 2017Publication date: June 13, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroshi KANNO, Hiroshi USAMI, Yasuhiko NAGATA, Masataka OTA, Katsunori YAMASHITA
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Patent number: 8512198Abstract: An automatic transmission includes: a first planetary gearset including a first sun gear, a first ring gear, and a first pinion carrier; a second planetary gearset including a second sun gear, a second ring gear, and a second pinion carrier; an input shaft constantly coupled to the first sun gear; an output shaft constantly coupled to the second pinion carrier; a first rotary member constantly connecting the first ring gear and the second sun gear; a first friction element selectively connecting the first sun gear and the second ring gear; a second friction element selectively connecting the first pinion carrier and the second ring gear; a third friction element selectively interrupting a rotation of the first pinion carrier; and a fourth friction element selectively interrupting a rotation of the first rotary member, the automatic transmission attaining first to fourth forward speeds and one reverse speed.Type: GrantFiled: February 22, 2012Date of Patent: August 20, 2013Assignee: Jatco LtdInventors: Kazuaki Aota, Yukiyoshi Inuta, Akihiro Yamamoto, Takayuki Okuda, Kazuo Oguri, Katsunori Yamashita
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Publication number: 20120244988Abstract: An automatic transmission includes: a first planetary gearset including a first sun gear, a first ring gear, and a first pinion carrier; a second planetary gearset including a second sun gear, a second ring gear, and a second pinion carrier; an input shaft constantly coupled to the first sun gear; an output shaft constantly coupled to the second pinion carrier; a first rotary member constantly connecting the first ring gear and the second sun gear; a first friction element selectively connecting the first sun gear and the second ring gear; a second friction element selectively connecting the first pinion carrier and the second ring gear; a third friction element selectively interrupting a rotation of the first pinion carrier; and a fourth friction element selectively interrupting a rotation of the first rotary member, the automatic transmission attaining first to fourth forward speeds and one reverse speed.Type: ApplicationFiled: February 22, 2012Publication date: September 27, 2012Inventors: Kazuaki AOTA, Yukiyoshi INUTA, Akihiro YAMAMOTO, Takayuki OKUDA, Kazuo OGURI, Katsunori YAMASHITA