Patents by Inventor Tokuji Kato

Tokuji Kato 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: 4074317
    Abstract: A multi-channel video display apparatus comprises a channel selector circuit including a plurality of manually operated switches, a sequential circuit to generate an output in response to the operating sequence of the switches in step with a vertical synchronization pulse, and a video signal gate circuit for passing a video signal in response to the output from the sequential circuit to the electrode of a cathode ray tube. The output from the sequential circuit is used to generate a series of horizontal and vertical beam positioning DC potentials for biasing the sawtooth waveforms to provide simultaneous display of the video signals on the screen of the cathode ray tube.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: February 14, 1978
    Assignee: Nissan Motor Company, Limited
    Inventors: Hiroshi Kogo, Tokuji Kato, Takashi Uematsu