Patents by Inventor Koji Mitoshi

Koji Mitoshi 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).

  • Gradation fluorescent display device
    Patent number: 6570326
    Abstract: A fluorescent display device capable of attaining gradation display while minimizing the number of types of phosphors. A glass substrate is formed thereon with anode electrodes, each of which has a phosphor film deposited thereon. The phosphor films include a phosphor film exhibiting a first kind of luminous hue, that exhibiting a second kind of luminous hue, and those exhibiting a mixed hue of both luminous hues. The mixed hue is varied by varying an area ratio between both luminous hues.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: May 27, 2003
    Assignee: Futaba Corporation
    Inventors: Masanori Bannai, Koji Mitoshi, Kazuhiko Tojo
  • Gradation fluorescent display device
    Publication number: 20020008468
    Abstract: A fluorescent display device capable of attaining gradation display while minimizing the number of types of phosphors. A glass substrate is formed thereon with anode electrodes, each of which has a phosphor film deposited thereon. The phosphor films include a phosphor film exhibiting a first kind of luminous hue, that exhibiting a second kind of luminous hue, and those exhibiting a mixed hue of both luminous hues. The mixed hue is varied by varying an area ratio between both luminous hues.
    Type: Application
    Filed: July 9, 2001
    Publication date: January 24, 2002
    Applicant: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Masanori Bannai, Koji Mitoshi, Kazuhiko Tojo