Patents Assigned to Nippon Seiko Kaisha
  • Four-wheel steering system for vehicle
    Patent number: 4601357
    Abstract: A four-wheel steering system for a vehicle has a rear wheel steering ratio changing means which changes the rear wheel steering ratio in accordance with rear wheel steering ratio characteristics predetermined according to the vehicle speed, and an inhibiting means which inhibits the rear wheel steering ratio changing means from changing the rear wheel steering ratio when the steering wheel is turned right or left from its neutral position.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: July 22, 1986
    Assignees: Mazada Motor Corp., Nippon Seiko Kaisha
    Inventors: Akihiko Miyoshi, Shigeki Furutani, Isamu Chikuma, Satoru Shimada