Patents by Inventor Tsutomu Sonehara

Tsutomu Sonehara 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).

  • Apparatus for controlling attitude of a road vehicle cab
    Patent number: 5642282
    Abstract: A cab is supported on a vehicle frame by hydraulic actuators, each provided with a stroke displacement sensor, and a suspension system for the frame includes a plurality of height sensors. The hydraulic actuators are driven by a control system to maintain a stable orientation of the cab in response to signals derived from the displacement and height sensors and representing vertical, longitudinal, lateral, yaw rolling and pitching vibrations of the cab.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: June 24, 1997
    Assignee: Isuzu Motors Ltd.
    Inventor: Tsutomu Sonehara