Patents by Inventor Ryogo Kurokawa

Ryogo Kurokawa 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).

  • Steering system for rear wheels
    Patent number: 4695069
    Abstract: A tubular cross-member is provided on a body of a motor vehicle in which a rack is slidably mounted. An outer control arm is rotatably connected on an end of the rack, and an inner control arm is rotatably supported on the cross-member. The other ends of both control arms are rotatably connected with each other by a kingpin. A rear wheel of the vehicle is rotatably mounted on a shaft secured to the outer control arm, and a steering drive device is provided to move the rack for steering.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: September 22, 1987
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Ryogo Kurokawa, Fusami Oyama, Akira Takahashi
  • Steering system for a motor vehicle
    Patent number: 4652002
    Abstract: A steering system for rear wheels of a motor vehicle is provided with a motor for changing the steering angle of the rear wheels and an electric control unit. The control unit produces a desired steering angle signal dependent on the speed of the vehicle and compares the actual steering angle of the rear wheels with the desired steering angle signal. A control signal dependent on the result of the comparison is applied to a driver which drives the motor so that the steering angle of the rear wheels coincides with the desired steering angle.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: March 24, 1987
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Ryogo Kurokawa, Fusami Oyama, Akira Takahashi, Kenji Hirose