Patents by Inventor Kohichi Matsuki

Kohichi Matsuki 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).

  • Switching mechanism for video lighting apparatus
    Patent number: 5717460
    Abstract: The present invention comprises a switching mechanism for a video lighting apparatus operating in response to a signal generated by a video camera upon the operation of the video camera. Thus, the lighting apparatus provides light only for the periods needed, i.e., during the actual camera operation.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: February 10, 1998
    Inventors: Yuzo Tsuruta, Kohichi Matsuki
  • Switching mechanism for video lighting apparatus
    Patent number: 5299012
    Abstract: Switching circuits are disclosed which activate lighting in conjunction with the operation of a video recorder. The switching circuits employ signalling means such as relays, photo emitters or transistors to detect current flow in the video recorder motor circuit. Circuit elements receive the signal and activate a light. If the motor circuit is inoperative, the light remains off.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: March 29, 1994
    Inventors: Yuzo Tsuruta, Kohichi Matsuki