Patents by Inventor Syunichi Igeta

Syunichi Igeta 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).

  • Method of forming fluorescent screen for color cathode-ray tube and exposure system for forming same
    Patent number: 5725977
    Abstract: An exposure system including a master mask used for exposing a glass panel to form a plurality of phosphor stripes or dots on an inner surface of the glass panel wherein the master mask and/or a light source are movable for correction of an exposure position, thereby eliminating the need to attach and remove a color selecting mechanism to and from the glass panel when the glass panel is exposed to form a fluorescent screen on the inner surface of the glass panel.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: March 10, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Minoru Hojo, Hiroo Kobayashi, Akira Inoue, Syunichi Igeta