Patents by Inventor Tahei TOYOSHIMA

Tahei TOYOSHIMA 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: 10907724
    Abstract: A driving force transmission device includes: a gear; a case receiving the gear; a baffle plate positioned between a side surface of the gear and the case, the baffle plate including a downstream side end portion positioned at a most downstream position in a rotation direction of the gear, the case including a rib protruding toward the downstream side end portion, a clearance positioned between a surface of the rib and a surface of the baffle plate, the rib including a linear portion crossing a rotation direction of the gear.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: February 2, 2021
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Mitsuhiro Akiyama, Shogo Fujii, Tahei Toyoshima, Masakazu Tamura
  • Publication number: 20200263782
    Abstract: A power transmission device includes: a gear; a case receiving the gear; and a baffle plate positioned between the gear and the case; the baffle plate including a guide portion arranged to guide an oil scooped up by the gear, into between the baffle plate and the case, and the guide portion being disposed above an oil level within the case, the guide portion being adjacent to an axial side surface of the gear, the guide portion being positioned in the baffle plate on an upstream side in a rotation direction of the gear, and the guide portion including a first bent portion which is positioned on a tip end side, and which is bent in a direction from the case toward the gear.
    Type: Application
    Filed: November 1, 2018
    Publication date: August 20, 2020
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Tahei TOYOSHIMA, Shingo YAMAMOTO, Kazuyuki HANDA, Masaki SHIBUYA, Tomohiro NAGATA, Masakazu TAMURA, Atsuyuki IDE, Yasuyuki HORIE, Hideyuki MAMIYA, Akira KAKIMI
  • Publication number: 20200263781
    Abstract: A driving force transmission device includes: a gear; a case receiving the gear; a baffle plate positioned between a side surface of the gear and the case, the baffle plate including a downstream side end portion positioned at a most downstream position in a rotation direction of the gear, the case including a rib protruding toward the downstream side end portion, a clearance positioned between a surface of the rib and a surface of the baffle plate, the rib including a linear portion crossing a rotation direction of the gear.
    Type: Application
    Filed: November 1, 2018
    Publication date: August 20, 2020
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Mitsuhiro AKIYAMA, Shogo FUJII, Tahei TOYOSHIMA, Masakazu TAMURA