Patents by Inventor Tomoji Isikawa

Tomoji Isikawa 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).

  • Fuel injector for an internal combustion engine
    Patent number: 6019296
    Abstract: A fuel injector comprises an injection hole and a valve body. The width of the injection hole is gradually narrowed inward at a predetermined contained angle. The width of the opening on the outer side of the injection hole is sufficiently larger than the height thereof. A fuel reservoir on the downstream side of the seat portion of the valve body is connected to the injection hole via a fuel adjusting passage. The fuel adjusting passage has a uniform passage cross section.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: February 1, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuhiro Yamamoto, Tomoji Isikawa, Akinori Saito