Patents by Inventor Sizuo Sumida

Sizuo Sumida 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).

  • Windshield wiper device for automobiles
    Patent number: 4375610
    Abstract: A windshield wiper device for automobiles including a control circuit for controlling a wiper drive motor. The control circuit has a wiper switch including an intermittent position wherein the wiper is intermittently driven. In the intermittent position of the wiper switch, the wiper is at first driven for one complete stroke. Then, after a desired time, the operator actuates a time interval setting switch whereby the wiper is thereafter driven intermittently with the desired time interval.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: March 1, 1983
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Mituru Nagaoka, Sizuo Sumida