Patents by Inventor Takayoshi Urushibata
Takayoshi Urushibata 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).
-
Patent number: 11906035Abstract: A power transmission device includes a pinion gear having a large pinion gear and a small pinion gear, a wall part that overlaps a revolution orbit of the large pinion gear in an axial direction, a plate that is provided between the wall part and the large pinion gear, and a bottom part provided on a lower part of the plate and a lower part of the revolution orbit of the large pinion gear with a clearance being interposed. A space on a wall part side of the plate and a space on a large pinion gear side of the plate in the axial direction are in communication with each other via the clearance positioned at the lower part of the plate.Type: GrantFiled: December 7, 2020Date of Patent: February 20, 2024Assignee: Jatco LtdInventors: Kenjiro Yasui, Takayoshi Urushibata, Yusuke Suzuki
-
Patent number: 11859707Abstract: A power transmission device includes a motor, a planetary gear mechanism having a portion that overlaps the motor in an axial direction, an axial direction wall part having a portion positioned between the planetary gear mechanism and the motor, a plate provided between the axial direction wall part and a pinion gear having the gear mechanism, and a box in which the motor, the planetary gear mechanism, the axial direction wall part, and the plate are housed. The box defines a breather hole that communicates with a breather chamber. The box has a radial direction wall part having a portion positioned between the plate and the breather chamber in a radial direction. The plate has a portion positioned between the pinion gear and the breather hole.Type: GrantFiled: December 7, 2020Date of Patent: January 2, 2024Assignee: Jatco LtdInventors: Yusuke Suzuki, Takayoshi Urushibata, Kenjiro Yasui
-
Patent number: 11767909Abstract: A vehicle includes a motor, a gear mechanism connected downstream of the motor, a box that has a motor chamber that houses the motor, a gear chamber that houses the gear mechanism and lubricating oil, and an exhaust pipe. A first cooling box, in which cooling liquid that cools the motor is introduced, is configured on an outer circumference of the motor. A second cooling box, which is connected so that cooling liquid can circulate between the second cooling box and the first cooling box, is configured on an outer circumference of the box. The motor chamber is arranged at a position spaced further apart from the exhaust pipe than the gear chamber.Type: GrantFiled: December 23, 2020Date of Patent: September 26, 2023Assignees: Jatco Ltd, Nissan Motor Co., Ltd.Inventors: Kenjiro Yasui, Yusuke Suzuki, Takayoshi Urushibata
-
Patent number: 11767907Abstract: A power transmission device includes a motor, a gear mechanism connected downstream of the motor and lubricated by oil, and a box. The box has a wall part that covers an outer circumference of the gear mechanism, and a jacket part that covers an outer circumference of the wall part. A cooling chamber, in which cooling liquid is introduced, is formed between the wall part and the jacket part. The cooling chamber includes a portion that overlaps with the gear mechanism when seen from a radial direction, and a portion that overlaps the gear mechanism when seen from an axial direction.Type: GrantFiled: December 23, 2020Date of Patent: September 26, 2023Assignees: Jatco Ltd, Nissan Motor Co., Ltd.Inventors: Kenjiro Yasui, Yusuke Suzuki, Takayoshi Urushibata
-
Patent number: 11761534Abstract: A power transmission device includes a gear mechanism, a wall part that overlaps with the gear mechanism in an axial direction, a plate provided between the wall part and the gear mechanism in the axial direction, and a park lock mechanism. The park lock mechanism has a parking pawl on a side of a surface of the plate facing the wall part. The park lock mechanism has a manual shaft and/or a detent mechanism on a side of a surface of the plate facing the gear mechanism.Type: GrantFiled: December 7, 2020Date of Patent: September 19, 2023Assignee: Jatco LtdInventors: Kenjiro Yasui, Takayoshi Urushibata, Yusuke Suzuki
-
Patent number: 11746884Abstract: A power transmission device includes a pinion gear having a large pinion gear and a small pinion gear, a carrier that supports the pinion gear, a ring gear that engages with the small pinion gear, an oil supply unit positioned above a horizontal line that passes through a revolution center of the pinion gear, and a downstream side wall part facing a gear surface of the large pinion gear. The downstream side wall part is arranged to be adjacent to the oil supply unit further downstream in a revolution direction of the pinion gear than the oil supply unit when viewed from an axial direction.Type: GrantFiled: December 7, 2020Date of Patent: September 5, 2023Assignee: Jatco LtdInventors: Yusuke Suzuki, Takayoshi Urushibata, Kenjiro Yasui
-
Patent number: 11746883Abstract: A power transmission device includes a box, a case disposed in the box, a differential mechanism housed in the case, and a planetary gear mechanism disposed in the box and supported by the case. The planetary gear mechanism includes a sun gear and a pinion gear that engages with the sun gear. The box has a shelf part above a horizontal line that passes through a revolution center of the pinion gear. The shelf part is arranged at a position that does not overlap the sun gear when viewed from radially above.Type: GrantFiled: December 7, 2020Date of Patent: September 5, 2023Assignee: Jatco LtdInventors: Kenjiro Yasui, Takayoshi Urushibata, Yusuke Suzuki
-
Publication number: 20230074168Abstract: A vehicle includes a motor, a gear mechanism connected downstream of the motor, a box that has a motor chamber that houses the motor, a gear chamber that houses the gear mechanism and lubricating oil, and an exhaust pipe. A first cooling box, in which cooling liquid that cools the motor is introduced, is configured on an outer circumference of the motor. A second cooling box, which is connected so that cooling liquid can circulate between the second cooling box and the first cooling box, is configured on an outer circumference of the box. The motor chamber is arranged at a position spaced further apart from the exhaust pipe than the gear chamber.Type: ApplicationFiled: December 23, 2020Publication date: March 9, 2023Inventors: Kenjiro YASUI, Yusuke SUZUKI, Takayoshi URUSHIBATA
-
Publication number: 20230068579Abstract: A power transmission device includes a motor, a planetary gear mechanism having a portion that overlaps the motor in an axial direction, an axial direction wall part having a portion positioned between the planetary gear mechanism and the motor, a plate provided between the axial direction wall part and a pinion gear having the gear mechanism, and a box in which the motor, the planetary gear mechanism, the axial direction wall part, and the plate are housed. The box defines a breather hole that communicates with a breather chamber. The box has a radial direction wall part having a portion positioned between the plate and the breather chamber in a radial direction. The plate has a portion positioned between the pinion gear and the breather hole.Type: ApplicationFiled: December 7, 2020Publication date: March 2, 2023Inventors: Yusuke SUZUKI, Takayoshi URUSHIBATA, Kenjiro YASUI
-
Publication number: 20230051028Abstract: A power transmission device includes a gear mechanism, a wall part that overlaps with the gear mechanism in an axial direction, a plate provided between the wall part and the gear mechanism in the axial direction, and a park lock mechanism. The park lock mechanism has a parking pawl on a side of a surface of the plate facing the wall part. The park lock mechanism has a manual shaft and/or a detent mechanism on a side of a surface of the plate facing the gear mechanism.Type: ApplicationFiled: December 7, 2020Publication date: February 16, 2023Inventors: Kenjiro YASUI, Takayoshi URUSHIBATA, Yusuke SUZUKI
-
Publication number: 20230050981Abstract: A power transmission device includes a pinion gear having a large pinion gear and a small pinion gear, a carrier that supports the pinion gear, a ring gear that engages with the small pinion gear, an oil supply unit positioned above a horizontal line that passes through a revolution center of the pinion gear, and a downstream side wall part facing a gear surface of the large pinion gear. The downstream side wall part is arranged to be adjacent to the oil supply unit further downstream in a revolution direction of the pinion gear than the oil supply unit when viewed from an axial direction.Type: ApplicationFiled: December 7, 2020Publication date: February 16, 2023Inventors: Yusuke SUZUKI, Takayoshi URUSHIBATA, Kenjiro YASUI
-
Publication number: 20230044400Abstract: A power transmission device includes a pinion gear having a large pinion gear and a small pinion gear, a wall part that overlaps a revolution orbit of the large pinion gear in an axial direction, a plate that is provided between the wall part and the large pinion gear, and a bottom part provided on a lower part of the plate and a lower part of the revolution orbit of the large pinion gear with a clearance being interposed. A space on a wall part side of the plate and a space on a large pinion gear side of the plate in the axial direction are in communication with each other via the clearance positioned at the lower part of the plate.Type: ApplicationFiled: December 7, 2020Publication date: February 9, 2023Inventors: Kenjiro YASUI, Takayoshi URUSHIBATA, Yusuke SUZUKI
-
Publication number: 20230044631Abstract: A power transmission device includes a motor, a gear mechanism connected downstream of the motor and lubricated by oil, and a box. The box has a wall part that covers an outer circumference of the gear mechanism, and a jacket part that covers an outer circumference of the wall part. A cooling chamber, in which cooling liquid is introduced, is formed between the wall part and the jacket part. The cooling chamber includes a portion that overlaps with the gear mechanism when seen from a radial direction, and a portion that overlaps the gear mechanism when seen from an axial direction.Type: ApplicationFiled: December 23, 2020Publication date: February 9, 2023Inventors: Kenjiro YASUI, Yusuke SUZUKI, Takayoshi URUSHIBATA
-
Publication number: 20230038311Abstract: A power transmission device includes a box, a case disposed in the box, a differential mechanism housed in the case, and a planetary gear mechanism disposed in the box and supported by the case. The planetary gear mechanism includes a sun gear and a pinion gear that engages with the sun gear. The box has a shelf part above a horizontal line that passes through a revolution center of the pinion gear. The shelf part is arranged at a position that does not overlap the sun gear when viewed from radially above.Type: ApplicationFiled: December 7, 2020Publication date: February 9, 2023Inventors: Kenjiro YASUI, Takayoshi URUSHIBATA, Yusuke SUZUKI
-
Patent number: 9068631Abstract: An automatic transmission includes: a Ravigneaux planetary gear set; first to fifth friction engagement elements; the first friction engagement element, the second friction engagement element, and the fifth friction engagement element being disposed on a front side which is nearer to the driving source than the output member, the third friction engagement element and the fourth friction engagement element being disposed on a rear side which is farther from the driving source than the output member, and a first drum member that includes an inner circumference on which the second friction engagement element is disposed, and an outer circumference on which the fifth friction engagement element is disposed, and that is connected with a front carrier plate located at a front end portion of the common carrier.Type: GrantFiled: May 31, 2012Date of Patent: June 30, 2015Assignee: JATCO LTDInventors: Kazuo Oguri, Kenichi Watanabe, Takayoshi Urushibata
-
Patent number: 8556767Abstract: An automatic transmission including a Ravigneaux planetary gear unit, an input member, an output member disposed on one side of the Ravigneaux planetary gear unit, five friction elements disposed on the other side of the Ravigneaux planetary gear unit, and a partition member cooperating with an automatic transmission case to define a transmission chamber in which the output member, the Ravigneaux planetary gear unit, and the respective friction elements are accommodated. The output member is supported on a cylindrical portion extending from the partition member toward the Ravigneaux planetary gear unit in an axial direction of the input member.Type: GrantFiled: May 30, 2012Date of Patent: October 15, 2013Assignee: Jatco LtdInventors: Kazuo Oguri, Kenichi Watanabe, Takayoshi Urushibata
-
Publication number: 20120316026Abstract: An automatic transmission includes: a Ravigneaux planetary gear set; first to fifth friction engagement elements; the first friction engagement element, the second friction engagement element, and the fifth friction engagement element being disposed on a front side which is nearer to the driving source than the output member, the third friction engagement element and the fourth friction engagement element being disposed on a rear side which is farther from the driving source than the output member, and a first drum member that includes an inner circumference on which the second friction engagement element is disposed, and an outer circumference on which the fifth friction engagement element is disposed, and that is connected with a front carrier plate located at a front end portion of the common carrier.Type: ApplicationFiled: May 31, 2012Publication date: December 13, 2012Inventors: Kazuo OGURI, Kenichi WATANABE, Takayoshi URUSHIBATA
-
Publication number: 20120316025Abstract: An automatic transmission including a Ravigneaux planetary gear unit, an input member, an output member disposed on one side of the Ravigneaux planetary gear unit, five friction elements disposed on the other side of the Ravigneaux planetary gear unit, and a partition member cooperating with an automatic transmission case to define a transmission chamber in which the output member, the Ravigneaux planetary gear unit, and the respective friction elements are accommodated. The output member is supported on a cylindrical portion extending from the partition member toward the Ravigneaux planetary gear unit in an axial direction of the input member.Type: ApplicationFiled: May 30, 2012Publication date: December 13, 2012Inventors: Kazuo Oguri, Kenichi Watanabe, Takayoshi Urushibata