Patents by Inventor Teppei OGA

Teppei OGA 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: 10760687
    Abstract: To fulfill a sealing function for a fluid within a short period of time when a pump configured to pressure-feed the fluid is activated, provided are a seal ring, including: a first side surface (20); a second side surface (30) being a side surface on a side opposite to the first side surface (20); and a first side-surface side projecting portion (40) formed on the first side surface (20), in which a distal end portion (42) of the first side-surface side projecting portion (40) projects most toward an outward side from the first side surface (20) as compared to an entire surface of the first side surface (20) except for the distal end portion (42), and a sealing device using the same.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 1, 2020
    Assignee: TPR CO., LTD.
    Inventors: Hitoshi Yamaguchi, Teppei Oga
  • Patent number: 10451185
    Abstract: Provided is a seal ring causing less friction and having a low oil leakage property even under a state in which a shaft rotation frequency or a housing rotation frequency is high, and being capable of reducing a shaft rotation torque. A level difference portion that forms a second width smaller than a first width is formed on a longitudinal sectional shape of the seal ring as viewed in a circumferential direction from a seal ring outer peripheral surface side toward a seal ring inner peripheral surface side.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: October 22, 2019
    Assignee: TPR CO., LTD.
    Inventors: Hitoshi Yamaguchi, Teppei Oga
  • Publication number: 20190085981
    Abstract: To fulfill a sealing function for a fluid within a short period of time when a pump configured to pressure-feed the fluid is activated, provided are a seal ring, including: a first side surface (20); a second side surface (30) being a side surface on a side opposite to the first side surface (20); and a first side-surface side projecting portion (40) formed on the first side surface (20), in which a distal end portion (42) of the first side-surface side projecting portion (40) projects most toward an outward side from the first side surface (20) as compared to an entire surface of the first side surface (20) except for the distal end portion (42), and a sealing device using the same.
    Type: Application
    Filed: March 13, 2017
    Publication date: March 21, 2019
    Inventors: Hitoshi YAMAGUCHI, Teppei OGA
  • Publication number: 20190040956
    Abstract: Provided is a seal ring causing less friction and having a low oil leakage property even under a state in which a shaft rotation frequency or a housing rotation frequency is high, and being capable of reducing a shaft rotation torque. A level difference portion that forms a second width smaller than a first width is formed on a longitudinal sectional shape of the seal ring as viewed in a circumferential direction from a seal ring outer peripheral surface side toward a seal ring inner peripheral surface side.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 7, 2019
    Inventors: Hitoshi YAMAGUCHI, Teppei OGA