Patents by Inventor Yoshiaki Oyamada

Yoshiaki Oyamada 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).

  • Stopper valve structure for fuel tank
    Publication number: 20040238034
    Abstract: A stopper valve for a fuel tank is provided which includes a valve housing, float movable upward/downward within the housing, valve element disposed on the top of the float, space formed downstream of the valve element and open via a through hole, and air inlet/outlet port provided downstream of the space and leading to a canister. One end portion of the air inlet/outlet port is located within the space and an opening is formed in the same end portion so as to be eccentric to the through hole and face upward.
    Type: Application
    Filed: May 25, 2004
    Publication date: December 2, 2004
    Applicants: KYOSAN DENKI CO., LTD., FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Keiji Suzuki, Tadashi Shimamori, Yoshiaki Oyamada, Katsuyuki Ichinohe
  • Fuel vapor emission preventing system
    Patent number: 6029635
    Abstract: A communicating pipe for introducing atmospheric pressure to an air vent circuit changeover valve has an intermediate portion provided in a fuel tank and slanted portions extending obliquely upward. The intermediate portion has a drain pipe wherein a drain hole is provided. Liquefied fuel in the communicating pipe is gathered to the intermediate portion through the slanted portions and drained from the drain pipe into the fuel tank. Thus constituted communicating pipe prevents a clogging of liquefied fuel in the communicating pipe.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: February 29, 2000
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Hidetoshi Sekine, Katsuyuki Ichinohe, Yasufumi Suzuki, Yoshiaki Oyamada, Naoki Hosoya