Patents by Inventor Tomohito Oyagi

Tomohito Oyagi 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: 5851675
    Abstract: An apparatus comprising a plurality of sliding members, at least one of the sliding members being a self-lubricating-function sliding member characterized by containing a precursor compound which produces a solid-lubricating compound during sliding by reacting with an atmosphere in which the sliding member is used or a component of a material with which the sliding member is in sliding contact.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: December 22, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Tomohito Oyagi, Mitsuo Nakagawa, Junji Sakai, Yoshiyuki Yasutomi, Takahiko Okouchi
  • Patent number: 5667310
    Abstract: A sliding bearing to be immersed in molten metal has low friction and long life. The bearing is provided with a solid particle trap portion for preventing solid particles in the molten metal from penetrating between sliding surfaces of the shaft and the bearing and removing the solid particles. Abrasive wear and an increase in friction, caused by biting of the solid particles into the sliding surfaces can be prevented. A continuous hot-dip plating apparatus employs the sliding bearing in the molten metal.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: September 16, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Tomohito Oyagi, Mitsuo Nakagawa, Junji Sakai, Takahiko Okouchi, Hitoshi Okoshi