Patents by Inventor Kiyoshi Tezuka

Kiyoshi Tezuka 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).

  • Multi-directional switching mechanism for controlling plural load circuits
    Patent number: 4027119
    Abstract: A driving power source and one or more load circuits are arranged in prescribed terminal contact with a revolving ball comprised of a pair of electro-conductive hemispheres and an intervening electro-insulating portion in such an arrangement that activation of each of the load circuits is switched on and off, polarity of the activation being controlled as desired by manual turning of the ball in selected directions and each hemisphere being always charged differently from the other through the terminal contact with the driving power source circuit.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: May 31, 1977
    Assignee: Murakami Kaimeido Co., Ltd.
    Inventor: Kiyoshi Tezuka
  • Antenna for automobiles
    Patent number: D325914
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: May 5, 1992
    Assignee: Harada Industry Co., Ltd.
    Inventor: Kiyoshi Tezuka
  • Antenna for automobiles
    Patent number: D333469
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: February 23, 1993
    Assignee: Harada Industry Co., Ltd.
    Inventor: Kiyoshi Tezuka