Patents by Inventor Shinsaku Fujikawa

Shinsaku Fujikawa 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).

  • Character display system
    Patent number: 4581611
    Abstract: A cathode ray tube of long persisting time has a control unit operably associated with a central processing unit and a CRT controller wherein the control unit generates signals to select data bus and memory access. A video inhibit signal is generated for a predetermined period of time by the control unit to avoid or prevent flicker or flashing on the screen during refreshing thereof.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: April 8, 1986
    Assignee: NCR Corporation
    Inventors: Chin-Cheng Yang, Shinsaku Fujikawa, Masashi Utsumi