Patents by Inventor Toshiyuki Nakazaki

Toshiyuki Nakazaki 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).

  • Car electronic device having antitheft mechanism
    Patent number: 4838377
    Abstract: An antitheft mechanism for an electronic device to be used in a car has three modes of operation. A normal operation mode permits continuous operation of the device. A line mode permits normal operation for a limited time after which it is replaced by a theft mode. The theft mode inhibits normal operation of the device until a secret code is entered into the device to return it to the normal mode or until a specified common operation of the device returns it to the line mode.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: June 13, 1989
    Assignee: Clarion, Co., Ltd.
    Inventors: Kengo Kozaki, Toshiyuki Nakazaki