Patents by Inventor Takao OKI

Takao OKI 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).

  • Publication number: 20230271601
    Abstract: The control device of the vehicle performs slip control for engaging the connection and disconnection clutch as an instruction hydraulic pressure for engaging the connection and disconnection clutch by the hydraulic control mechanism after the internal combustion engine is started by the starter, as an instruction hydraulic pressure for maintaining the speed of the internal combustion engine at a higher speed than a lower limit speed for avoiding the stop of the internal combustion engine. Further, the control device of the vehicle performs engagement completion control of raising an instruction hydraulic pressure for engaging the connection and disconnection clutch from an instruction hydraulic pressure in the slip control to an instruction hydraulic pressure for completing engagement of the connection and disconnection clutch when a difference between the speed of the internal combustion engine and the speed of the electric motor becomes smaller than a preset threshold value.
    Type: Application
    Filed: December 6, 2022
    Publication date: August 31, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Guodong TAN, Takao OKI, Yoshio HASEGAWA, Masashi IKEMURA
  • Patent number: 11427069
    Abstract: A vehicle drive device that includes a rotary electric machine that serves as a driving force source for wheels; a first rotation member coupled to a rotor of the rotary electric machine; and a fluid coupling that is disposed on an axial first side, which is one side in an axial direction with respect to the rotary electric machine, and that has a rotation housing.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: August 30, 2022
    Assignees: AISIN CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Ota, Ken Shimizu, Ren Okazawa, Masashi Ikemura, Guo Dong Tan, Takao Oki
  • Publication number: 20220097513
    Abstract: A vehicle drive device that includes a rotary electric machine that serves as a driving force source for wheels; a first rotation member coupled to a rotor of the rotary electric machine; and a fluid coupling that is disposed on an axial first side, which is one side in an axial direction with respect to the rotary electric machine, and that has a rotation housing.
    Type: Application
    Filed: March 27, 2020
    Publication date: March 31, 2022
    Applicants: AISIN CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi OTA, Ken SHIMIZU, Ren OKAZAWA, Masashi IKEMURA, Guo Dong TAN, Takao OKI