Patents by Inventor Gou Uchida

Gou Uchida 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).

  • Publication number: 20030214217
    Abstract: Out of focusing electrodes which face each other in an opposed manner and constitute an electrostatic quadruple lens, one focusing electrode includes planar correction electrode plates which extend parallel to a tube axis while sandwiching electron beams from above and below. Here, the correction electrode plates include a reinforcing mechanism for suppressing the deformation or the displacement of the planar correction electrode plates. By suppressing the deformation and the displacement of the planar correction electrode plates which form the electrostatic quadruple lens, it is possible to provide a color cathode ray tube capable of exhibiting excellent focusing characteristics over an entire screen.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 20, 2003
    Inventors: Hidemasa Komoro, Kenichi Watanabe, Kazunari Noguchi, Gou Uchida, Shoji Shirai
  • Publication number: 20020030430
    Abstract: A color cathode ray tube has a three in-line beam electron gun. The electron gun includes a first group of focus electrodes supplied with a first fixed focus voltage and a second group of focus electrodes supplied with a second focus voltage comprised of a fixed voltage and a dynamic voltage synchronized with beam deflection. Plural axially spaced electrostatic quadrupole lenses are formed between facing ones of the first and second groups of focus electrodes. One of the plural electrostatic quadrupole lenses nearest to the cathodes is configured so as to produce a lens action weaker on two side electron beams than on the center electron beam.
    Type: Application
    Filed: July 26, 2001
    Publication date: March 14, 2002
    Inventors: Kouichi Miyagawa, Shinichi Katou, Kazunari Noguchi, Gou Uchida