Patents by Inventor Masakazu Yanagisawa

Masakazu Yanagisawa 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).

  • Resilient supporting device for operator cabin
    Patent number: 5516176
    Abstract: A shock absorbing device provided with a damping plate damper having a viscosity damper includes: a case body comprising an upper flange, a body portion, and a lower flange; a collared resilient member provided with a body portion and a collar portion, an outer surface of the body portion and an undersurface of the collar portion being connected to the case body; a center shaft connected to the central portion of the collared resilient member; a damping plate fixed to the bottom end portion of the center shaft; and a damper case fixed to the bottom end of the case body and filled with a viscous substance. An operator cabin of a construction machine is resiliently supported to the vehicle body through the shock absorbing device.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: May 14, 1996
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Kenzo Kimoto, Masakazu Yanagisawa