Patents by Inventor Yoji Suizu

Yoji Suizu 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: 5141201
    Abstract: A vibration damping apparatus for transportation includes a vertical direction damping device having air springs and air dampers arranged in parallel on a base and horizontal direction damping device having laminated rubbers. The vertical and horizontal damping devices are combined in series for supporting a load base. The apparatus further includes an air supply source for supplying air into the air springs, control valves provided between the air springs and the air supply source for controlling air supply into and exhaust from the air springs, displacement detecting device for detecting displacements of the load base relative to the bases, and control device for controlling the control valves on the basis of results detected by the displacement detecting device to maintain the load base horizontally and at a constant level relative to the base whatever load is loaded on the load base.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: August 25, 1992
    Assignee: Bridgestone Corporation
    Inventors: Keiichiro Mizuno, Kazutomo Murakami, Kazuyoshi Iida, Toshihiro Miyazaki, Yoji Suizu, Nobuo Masaki
  • Patent number: 4924640
    Abstract: A vibration controlling apparatus for buildings such as high-rise building, tower and the like comprises a laminated elastic body comprised of elastomer layers and reinforcing plates attached to the building, and an additional mass attached thereto, and reduces the swinging of the building.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: May 15, 1990
    Assignees: Bridgestone Corporation, Takafumi Fujita
    Inventors: Yoji Suizu, Nobuo Masaki, Takafumi Fujita, Hiroshi Kurabayashi