Patents Assigned to JATCO Ltd
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Publication number: 20260338259Abstract: Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by a third rotational element, the second rotational part is implemented by coupling the second rotational element and the sixth rotational element, the third rotational part is implemented by coupling the first rotational element and the fifth rotational element, and the fourth rotational part is implemented by the fourth rotational element.Type: ApplicationFiled: July 5, 2023Publication date: October 29, 2026Applicant: JATCO LtdInventors: Akira KAMIYAMA, Kenichi WATANABE, Ikuo HIROSE
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Publication number: 20260342148Abstract: A unit includes: a bolt; and a rotary electrical machine. The rotary electrical machine includes a rotor and a stator surrounding an outer periphery of the rotor. The stator includes a stator protrusion portion protruding radially outward from an outer periphery of the stator. The bolt is inserted into the stator protrusion portion in a direction from one axial end side of the stator toward the other axial end side of the stator. A neutral point of the stator and a head portion of the bolt are disposed on the one axial end side of the stator. The neutral point of the stator is offset from the head portion of the bolt when viewed in an axial direction.Type: ApplicationFiled: September 14, 2023Publication date: October 29, 2026Applicant: JATCO LtdInventors: Daiki TANAKA, Atsushi MAEDA
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Publication number: 20260338260Abstract: Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by coupling the third rotational element and the fourth rotational element, the second rotational part is implemented by the second rotational element, the third rotational part is implemented by coupling the first rotational element and the fifth rotational element, and the fourth rotational part is implemented by the sixth rotational element.Type: ApplicationFiled: July 5, 2023Publication date: October 29, 2026Applicant: JATCO LtdInventors: Akira KAMIYAMA, Kenichi WATANABE, Ikuo HIROSE
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Publication number: 20260328268Abstract: Provided is a unit including: an input element; an output element; and a gear device which is implemented by coupling respective rotational elements of a first planetary gear mechanism and a second planetary gear mechanism at one place and in which, on an alignment chart, a second rotational part which is the coupled rotational elements is disposed between a first rotational part and a third rotational part, and a fifth rotational part is disposed between the second rotational part and a fourth rotational part, in which the input element is connected to the first rotational part, the output element is connected to the fifth rotational part, the third rotational part is fixed, the fourth rotational part is selectively connectable to a fixed element or the first rotational part, and any specific two among the second rotational part, the fourth rotational part, and the fifth rotational part are connectable and disconnectable with respect to each other.Type: ApplicationFiled: June 14, 2023Publication date: October 22, 2026Applicant: JATCO LtdInventors: Akira KAMIYAMA, Kenichi WATANABE, Ikuo HIROSE
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Publication number: 20260328270Abstract: Provided is a unit including: an input element; an output element; and a gear device which is implemented by coupling respective rotational elements of a first planetary gear mechanism and a second planetary gear mechanism at one place and in which, on an alignment chart, a second rotational part is disposed between a first rotational part and a third rotational part which are the coupled rotational elements, and a fifth rotational part is disposed between the first rotational part and a fourth rotational part, in which the input element is connected to the first rotational part, the output element is connected to the fifth rotational part, the third rotational part is fixed, the fourth rotational part is selectively connectable to a fixed element or the second rotational part, and any specific two among the first rotational part, the fourth rotational part, and the fifth rotational part are connectable and disconnectable with respect to each other.Type: ApplicationFiled: June 14, 2023Publication date: October 22, 2026Applicant: JATCO LtdInventors: Akira KAMIYAMA, Kenichi WATANABE, Ikuo HIROSE
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Publication number: 20260328269Abstract: Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by coupling a first rotational element and a sixth rotational element, the second rotational part is implemented by a fifth rotational element, the third rotational part is implemented by a second rotational element, and the fourth rotational part is implemented by coupling a third rotational element and a fourth rotational element.Type: ApplicationFiled: July 5, 2023Publication date: October 22, 2026Applicant: JATCO LtdInventors: Akira KAMIYAMA, Kenichi WATANABE, Ikuo HIROSE
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Publication number: 20260314411Abstract: A unit includes an electric circuit unit, a cooler through which a coolant passes, and a fiber body, the electric circuit unit is cooled by the cooler, and the fiber body has a portion disposed at a coolant inlet of the cooler.Type: ApplicationFiled: May 25, 2023Publication date: October 8, 2026Applicant: JATCO LtdInventor: Toshikazu OSHIDARI
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Patent number: 12736111Abstract: Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by the first rotational element, the second rotational part is implemented by coupling the second rotational element and the sixth rotational element, the third rotational part is implemented by the fifth rotational element, and the fourth rotational part is implemented by coupling the third rotational element and the fourth rotational element.Type: GrantFiled: July 5, 2023Date of Patent: September 15, 2026Assignee: JATCO LtdInventors: Akira Kamiyama, Kenichi Watanabe, Ikuo Hirose
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Publication number: 20260264495Abstract: The unit includes: a rotating electrical machine; a planetary gear mechanism connected downstream of the rotating electrical machine; a first gear connected downstream of the planetary gear mechanism; a second gear to mesh with the first gear; and a third gear connected downstream of the second gear. The rotating electrical machine, the planetary gear mechanism, and the first gear are disposed along a first axis, the second gear and the third gear are disposed along a second axis, and the third gear has a portion sandwiched between the planetary gear mechanism and the second gear.Type: ApplicationFiled: May 9, 2023Publication date: September 10, 2026Applicant: JATCO LtdInventors: Atsushi MAEDA, Minoru SHOICHI, Hiroki UEHARA, Akira SUWABAYASHI
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Patent number: 12729749Abstract: Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by coupling the third rotational element and the fourth rotational element, the second rotational part is implemented by the fifth rotational element, the third rotational part is implemented by coupling the second rotational element and the sixth rotational element, and the fourth rotational part is implemented by the first rotational element.Type: GrantFiled: July 5, 2023Date of Patent: September 8, 2026Assignee: JATCO LtdInventors: Akira Kamiyama, Kenichi Watanabe, Ikuo Hirose
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Patent number: 12723648Abstract: A control device for a transmission is used for a transmission that includes a first engagement element, a second engagement element, and a third engagement element. The control device for a transmission changes, by driving an actuator for the first engagement element in a state in which the third engagement element is slipped, the first engagement element from a one-way clutch state to a disengaged state and then engages the second engagement element.Type: GrantFiled: June 29, 2023Date of Patent: September 1, 2026Assignee: JATCO LtdInventor: Hidekazu Yagi
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Publication number: 20260251205Abstract: Provided is a unit including: an input element; an output element; first to third engagement elements; a first planetary gear mechanism in which the first to third rotational elements are arranged in this order on an alignment chart; and a second planetary gear mechanism in which fourth to sixth rotational elements are arranged in this order on the alignment chart. The input element is connected to the fourth rotational element, the output element is connected to the first rotational element, one side of the first engagement element is connected to the second rotational element and the fifth rotational element, the other side of the first engagement element is fixed, one side of the second engagement element is connected to the third rotational element and the sixth rotational element, the other side of the second engagement element is fixed, and the third engagement element connects two rotational elements that are selected from the first to sixth rotational elements and are not connected to each other.Type: ApplicationFiled: May 19, 2023Publication date: August 27, 2026Applicant: JATCO LtdInventors: Hidekazu YAGI, Kazutoshi SHIMOZONO
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Patent number: 12710092Abstract: A device includes: a first planetary gear mechanism including a first sun gear connected to an input shaft, a first carrier connected to an output shaft, and a first ring gear; and a second planetary gear mechanism including a second sun gear connected to the input shaft, a second carrier connected to a first fixed element via a first engagement element, and a second ring gear connected to a second fixed element via a second engagement element, the first planetary gear mechanism and the second planetary gear mechanism are connected by the first ring gear and the second carrier, and the first sun gear and the first ring gear are connected by a third engagement element.Type: GrantFiled: November 29, 2022Date of Patent: August 18, 2026Assignee: JATCO LtdInventors: Kazutoshi Shimozono, Minoru Shoichi
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Patent number: 12704171Abstract: Provided is a unit including: a gear device including a first planetary gear mechanism including a first sun gear, a first carrier, and a first ring gear, and a second planetary gear mechanism including a second sun gear, a second carrier, and a second ring gear; an input element; an output element; a first engagement element; a second engagement element; and a third engagement element. Coupled to each other are the first sun gear with the second carrier and the second sun gear with the first carrier. The first engagement element is connected to the input element, the first sun gear, and the second carrier. The second engagement element is connected to the input element and the second ring gear. The third engagement element is connected to the second sun gear, the first carrier, and is fixed. The output element is connected to the first ring gear.Type: GrantFiled: July 5, 2023Date of Patent: August 11, 2026Assignee: JATCO LtdInventors: Akira Kamiyama, Kenichi Watanabe, Ikuo Hirose
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Publication number: 20260225435Abstract: A unit includes a housing configured to accommodate an inverter, a rotating electrical machine, a shaft connected downstream of the rotating electrical machine, and a grounding body in contact with the shaft. The housing has a peripheral wall surrounding the inverter, and the grounding body is located at an inner side of the peripheral wall.Type: ApplicationFiled: October 20, 2023Publication date: August 6, 2026Applicant: JATCO LtdInventors: Akira KAMIYAMA, Hiroki UEHARA, Minoru SHOICHI
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Publication number: 20260225550Abstract: A unit includes a rotating electrical machine, a shaft configured to rotate integrally with the rotating electrical machine, a differential gear connected downstream of the shaft, a differential case configured to accommodate the differential gear, and a grounding body in contact with the shaft. The grounding body has a portion that overlaps the differential case when viewed in a radial direction.Type: ApplicationFiled: October 20, 2023Publication date: August 6, 2026Applicant: JATCO LtdInventors: Akira KAMIYAMA, Hiroki UEHARA, Minoru SHOICHI
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Patent number: 12697984Abstract: Provided is a vehicle control device that controls a vehicle including an automatic transmission, the automatic transmission including a first oil pump driven by a first drive source that drives a drive wheel and a second oil pump driven by a second drive source, wherein the vehicle control device drives the second oil pump when the first drive source is started, and drives the second oil pump when a time during which the second oil pump is not driven after the first drive source is started continues for a predetermined time or longer, and a drive time for the second oil pump when the first drive source is started is longer than a drive time when the time during which the second oil pump is not driven continues for the predetermined time or longer.Type: GrantFiled: February 24, 2022Date of Patent: August 4, 2026Assignees: JATCO Ltd, NISSAN MOTOR CO., LTD.Inventors: Tarou Murazumi, Hajime Tasaka, Keisuke Iwado, Hiroyuki Tokoi, Yuji Oishi
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Patent number: 12680605Abstract: The unit includes a housing configured to house oil, a rotating electric machine, a first gear connected downstream of the rotating electric machine, a second gear meshing with the first gear, a third gear connected downstream of the second gear, a fourth gear meshing with the third gear, a fifth gear connected downstream of the fourth gear, and a sixth gear meshing with the fifth gear. The rotating electric machine and the first gear are disposed on a first axis. The second gear and the third gear are disposed on a second axis. The fourth gear and the fifth gear are disposed on a third axis. The sixth gear is disposed on a fourth axis. When viewed in an axial direction, the first axis and the fourth axis are disposed in a lower side of the second axis and the third axis.Type: GrantFiled: May 12, 2023Date of Patent: July 14, 2026Assignee: JATCO LtdInventors: Atsushi Maeda, Akira Suwabayashi, Minoru Shoichi, Hiroki Uehara, Akira Kamiyama
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Patent number: 12671300Abstract: A component comprising: a first case portion having a tunnel portion having an opening end opening toward an axial direction; and a second case portion having a catch tank portion opening upward, wherein the first case portion and the second case portion face each other such that a bottom portion of the tunnel portion and a bottom portion of the catch tank portion are coupled to each other, an opening area of the opening end of the tunnel portion on the second case portion side is larger than an opening area of the opening end of the tunnel portion on a side opposite to the second case portion side, the tunnel portion as a whole is inclined downward from the second case portion side of the tunnel portion to the side opposite to the second case portion side of the tunnel portion, and the second case portion side of the tunnel portion is inclined downward toward the catch tank portion.Type: GrantFiled: February 28, 2022Date of Patent: June 30, 2026Assignees: JATCO Ltd, NISSAN MOTOR CO., LTD.Inventors: Yuuki Tanaka, Yutaka Okumura, Yusuke Suzuki, Yojiro Mochizuki
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Patent number: 12663059Abstract: Provided is a unit including: an input element; an output element; first to third engagement elements; a first planetary gear mechanism in which the first to third rotational elements are arranged in this order on an alignment chart; and a second planetary gear mechanism in which fourth to sixth rotational elements are arranged in this order on the alignment chart. The input element is connected to the first rotational element, the output element is connected to the second rotational element and the sixth rotational element, one side of the first engagement element is connected to the fifth rotational element, the other side of the first engagement element is fixed, one side of the second engagement element is connected to the third rotational element and the fourth rotational element, the other side of the second engagement element is fixed, and the third engagement element connects two rotational elements that are selected from the first to sixth rotational elements and are not connected to each other.Type: GrantFiled: May 19, 2023Date of Patent: June 23, 2026Assignees: JATCO Ltd, NISSAN MOTOR CO., LTD.Inventors: Kazunori Kawashima, Michinori Matsuo, Toshikazu Oshidari