Patents by Inventor Tokiyuki TANAKA

Tokiyuki TANAKA 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).

  • Oil pump having housing with seal portion
    Patent number: 11519406
    Abstract: A pump housing of an oil pump includes a suction port that supplies oil to a pump room, a discharge port that discharges oil from the pump room, and a seal portion that suppresses leakage of oil from the pump room to outside of the pump room. A shaft of the oil pump includes a small diameter portion and a large diameter portion having different diameters, the small diameter portion is connected to the inner rotor, and the shaft and the inner rotor integrally rotate. The seal portion is in contact with a side surface of the inner rotor extending in a diameter direction of the shaft, and also extends to a region in the diameter direction on an inner side smaller than the large diameter portion in the diameter direction.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: December 6, 2022
    Assignee: AISIN CORPORATION
    Inventors: Atsuo Isoda, Kenta Ide, Masato Kishi, Kazuya Horikawa, Tokiyuki Tanaka
  • OIL PUMP
    Publication number: 20210164469
    Abstract: A pump housing of an oil pump includes a suction port that supplies oil to a pump room, a discharge port that discharges oil from the pump room, and a seal portion that suppresses leakage of oil from the pump room to outside of the pump room. A shaft of the oil pump includes a small diameter portion and a large diameter portion having different diameters, the small diameter portion is connected to the inner rotor, and the shaft and the inner rotor integrally rotate. The seal portion is in contact with a side surface of the inner rotor extending in a diameter direction of the shaft, and also extends to a region in the diameter direction on an inner side smaller than the large diameter portion in the diameter direction.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Atsuo ISODA, Kenta IDE, Masato KISHI, Kazuya HORIKAWA, Tokiyuki TANAKA