Patents by Inventor Ryoji Ueda

Ryoji Ueda 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).

  • Apparatus for absorbing oil pressure in an impact type tool
    Patent number: 4175408
    Abstract: An apparatus for absorbing oil pressure in an impact tool with an eccentric oil chamber in a rotatable cylinder connected to a drive with a rotor and spindle. Movement of the rotor relative to the oil chamber urges oil into chambers outside of the rotor. A space chamber formed inside of the cylinder communicating with the oil chamber is filled with a soft elastic member such as foam rubber.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: November 27, 1979
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kaname Kasai, Takaji Mukumoto, Toshikazu Asakura, Ryoji Ueda