Patents by Inventor Tsutomu Yamamoto, deceased

Tsutomu Yamamoto, deceased 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).

  • Patent number: 4920338
    Abstract: A plurality of engine ignition keys are provided provided with codes which enable each key owner or user to preselect a seat position and automatically achieve the same position upon re-entering the vehicle simply by inserting the key into the engine ignition.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: April 24, 1990
    Assignees: Nissan Motor Co., Ltd., Niles Parts Co., Ltd.
    Inventors: Masakazu Tsunoda, Akimitsu Inoue, Tsutomu Yamamoto, deceased