Patents by Inventor Shigeaki Hamada

Shigeaki Hamada 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).

  • Movable valve device for engine
    Patent number: 5241928
    Abstract: A valve moving device for a combustion engine wherein a hole engagement part pivotally mounts a rocker arm on a rocker shaft. The axial centerline of the hole engagement part is provided on a slant with respect to the axial centerline of the rocker shaft, so that the axial centerline of the pivot hole of the rocker arm is slanted relative to the axial centerline of the camshaft.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: September 7, 1993
    Assignee: Suzuki Motor Corp.
    Inventors: Shigeaki Hamada, Masato Kasai, Yasuyuki Osumi, Kiyomi Yamashita, Yoshihiko Ito
  • Cylinder head of a four-cycle engine
    Patent number: 4969427
    Abstract: A cylinder head for a four-cycle engine having combustion chamber holes formed in the lower surface thereof, and mounting at least one rotatable cam shaft along the upper surface. The cylinder head may also mount a rocker shaft to permit use with either a 1-cam 2-valve engine or a 1-cam 4-valve engine.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: November 13, 1990
    Assignee: Suzuki Jidosha Kogyo Kabushiki Kaisha
    Inventor: Shigeaki Hamada