Patents by Inventor Shigeo Fujihara

Shigeo Fujihara 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).

  • Glass funnel for projection cathode ray tube with integrally formed pad portions
    Patent number: 6819039
    Abstract: Pad portions are respectively integrally protruded to be formed on an outer surface of a substantially funnel-shaped sidewall portion of the glass funnel for projection. A ridgeline for a reference end face formed on the pad portion comprises a first curved portion to form a top portion and second curved portions to form rising portions. The first curved portion and the second curved portions are smoothly continuous to each other without bending portions. The second curved portion is smoothly continuous to the outer face of the sidewall portion without bending portions.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: November 16, 2004
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Shigeo Fujihara, Osamu Odani
  • Glass funnel for projection
    Publication number: 20030122475
    Abstract: Pad portions are respectively integrally protruded to be formed on an outer surface of a substantially funnel-shaped sidewall portion of the glass funnel for projection. A ridgeline for a reference end face formed on the pad portion comprises a first curved portion to form a top portion and second curved portions to form rising portions. The first curved portion and the second curved portions are smoothly continuous to each other without bending portions. The second curved portion is smoothly continuous to the outer face of the sidewall portion without bending portions.
    Type: Application
    Filed: December 24, 2002
    Publication date: July 3, 2003
    Inventors: Shigeo Fujihara, Osamu Odani