Patents by Inventor Hiroyuki Minagawa

Hiroyuki Minagawa 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).

  • Cathode ray tube and method of making the same
    Patent number: 5559398
    Abstract: A cathode ray tube having an optically machine-readable coded marking comprising an undercoating layer of heat- and acid-resistant paint, a mark printed with heat-resistant ink on the undercoating layer and an overcoating layer of transparent heat- and acid-resistant paint covering the mark.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 24, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Syunichi Asakura, Hiroyuki Minagawa, Koji Sugimoto