Patents by Inventor Yasuo Yukitake

Yasuo Yukitake 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).

  • Valve drive apparatus for double overhead camshaft engine
    Patent number: 5033422
    Abstract: A valve drive apparatus comprises a pair of valve trains, each having a rocker arm and a hydraulic lash adjuster, arranged symmetrically with respect to a center axis of each cylinder of a double overhead camshaft engine. Either one of the pair of valve trains that has a rocker arm leverage greater than a rocker arm leverage of the other of the pair of valve trains is adapted and designed so as to have a structural rigidity higher than the structural rigidity of the other.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: July 23, 1991
    Assignee: Mazda Motor Corporation
    Inventors: Toru Kurisu, Akira Kurihara, Yasuo Yukitake