Patents by Inventor Yongjoo RYOO

Yongjoo RYOO 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: 20240123805
    Abstract: A vehicle drive apparatus includes: a case accommodating a rotating electric machine; a mount supporting the case to a vehicle body; and a power control unit controlling the rotary electric machine. Further, the mount includes a bracket which is fixed to the vehicle body, a mount member which is fixed to the case, and an elastic member provided between the bracket and the mount member, the power control unit is fixed to the mount member, the mount member has a horizontal surface on a top thereof as a mounting surface on which the power control unit is attached, and the power control unit and the case are integrated via the mount member.
    Type: Application
    Filed: August 15, 2023
    Publication date: April 18, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yongjoo RYOO, Naoki MARUKAWA
  • Patent number: 11460089
    Abstract: A pendulum vibration damper in which raceway surfaces are processed accurately at desired positions to damp vibrations effectively by oscillating motions of rolling masses, and a manufacturing method thereof. The pendulum vibration damper comprises a first attachment and a second attachment formed symmetrically. A first raceway surface is formed on the first attachment, and a second raceway surface is formed on the second attachment. The first attachment and the second attachment are attached to each surface of the inertia body a while being positioned to align the first raceway surface and the second raceway surface with a predetermined common profile in the axial direction.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: October 4, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yongjoo Ryoo, Masayuki Ishibashi
  • Publication number: 20220120331
    Abstract: A pendulum vibration damper in which raceway surfaces are processed accurately at desired positions to damp vibrations effectively by oscillating motions of rolling masses, and a manufacturing method thereof. The pendulum vibration damper comprises a first attachment and a second attachment formed symmetrically. A first raceway surface is formed on the first attachment, and a second raceway surface is formed on the second attachment. The first attachment and the second attachment are attached to each surface of the inertia body a while being positioned to align the first raceway surface and the second raceway surface with a predetermined common profile in the axial direction.
    Type: Application
    Filed: September 28, 2021
    Publication date: April 21, 2022
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yongjoo RYOO, Masayuki ISHIBASHI