Patents by Inventor Keijin Fuma

Keijin Fuma 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).

  • Sealing structure
    Patent number: 9541025
    Abstract: In a sealing structure, a seal ring stands between an outer peripheral member and an inner peripheral member installed thereto. A taper-like outer peripheral surface having smaller diameter toward an inserting direction of the inner peripheral member and an installation portion outer peripheral surface extending from the small diameter end portion are formed on an outer peripheral surface of the inner peripheral member. A stepped surface positioned closer to the inserting direction side and directed to an opposite direction to the inserting direction, and an installation portion inner peripheral surface extending from an outer diameter end of the stepped surface in the opposite direction are formed on an inner peripheral surface of the outer peripheral member. The seal ring is arranged in a compressed state between the taper-like outer peripheral surface and the installation portion outer peripheral surface, and the stepped surface and the installation portion inner peripheral surface.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: January 10, 2017
    Assignee: NOK Corporation
    Inventors: Hikaru Tadano, Keijin Fuma, Hiromichi Yasuda
  • SEALING STRUCTURE
    Publication number: 20150137460
    Abstract: In a sealing structure, a seal ring stands between an outer peripheral member and an inner peripheral member installed thereto. A taper-like outer peripheral surface having smaller diameter toward an inserting direction of the inner peripheral member and an installation portion outer peripheral surface extending from the small diameter end portion are formed on an outer peripheral surface of the inner peripheral member. A stepped surface positioned closer to the inserting direction side and directed to an opposite direction to the inserting direction, and an installation portion inner peripheral surface extending from an outer diameter end of the stepped surface in the opposite direction are formed on an inner peripheral surface of the outer peripheral member. The seal ring is arranged in a compressed state between the taper-like outer peripheral surface and the installation portion outer peripheral surface, and the stepped surface and the installation portion inner peripheral surface.
    Type: Application
    Filed: July 16, 2013
    Publication date: May 21, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hikaru Tadano, Keijin Fuma, Hiromichi Yasuda