Patents by Inventor Seiji Hetsugi

Seiji Hetsugi 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).

  • Dual cathode-ray tube display system for text editing
    Patent number: 4419661
    Abstract: A cathode-ray tube display device including first and second cathode-ray tube displays. The first cathode-ray tube displays an entire screen full of characters and symbols or the like in dot matrix form. One of the characters from the first cathode-ray tube can be transferred and displayed upon the second cathode-ray tube with the use of a light pen applied to the screen of the first cathode-ray tube display. The selected character can then be edited or corrected on the second cathode-ray tube display and then transferred back to the first cathode-ray tube display.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: December 6, 1983
    Assignee: New Nippon Electric Co., Ltd.
    Inventor: Seiji Hetsugi