Patents by Inventor Yukinobu Natsuaki

Yukinobu Natsuaki 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).

  • Electric parking brake system for a vehicle
    Patent number: 4561527
    Abstract: An improved parking brake system for a vehicle capable of switching the operation of the parking brake between an automatic control mode and a manual control mode at the operator's will. The parking brake is applied and released by an electromagnetic device which is controlled by a brake-application command signal and a brake-release command signal produced by a controller. The controller is adapted to be manually switched between a manual brake-application and brake-release control mode and an automatic control mode under the action of a switch. A power supply circuit is provided which has a battery and an ignition power source for supplying power to the electromagnetic device.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: December 31, 1985
    Assignee: Mazda Motor Corporation
    Inventors: Hiromasa Nakamoto, Yukinobu Natsuaki, Osamu Michihira, Futoshi Shoji