Patents Examined by Leo H. Boubreau
  • Technique for preventing reflections in a cathode ray tube
    Patent number: 4723091
    Abstract: The panel face plate of a cathode ray tube is provided with an irregular film which is formed by spraying a mixed solution of silicon hydroxide, alcohol and alkyl acetate onto the panel face plate.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: February 2, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Hiromitsu Kawamura, Akira Misumi, Masayoshi Ezawa, Katsumi Kobara, Yoshiyuki Odaka