Patents by Inventor Chihito Funayama

Chihito Funayama 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).

  • Pigment-attached blue-emitting phosphor and color cathode-ray tube
    Patent number: 5369331
    Abstract: The present invention provides a pigment-attached blue-emitting phosphor having attached a blue pigment which has fastness and chemical stability and is excellent in reflection spectrum characteristics, and a color cathode-ray tube having a blue-emitting fluorescent layer containing the blue pigment formed on the inner surface of a face plate.The present invention also provides a pigment-attached blue-emitting phosphor having a CoO.ZnO.SiO.sub.2 type blue pigment attached thereto, and a color cathode-ray tube provided with a blue-emitting fluorescent layer containing the blue pigment particles on the inner surface of a face plate.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: November 29, 1994
    Assignee: Kasei Optonix, Ltd.
    Inventors: Tomohito Mizukami, Chihito Funayama, Yasuo Oguri
  • Pigment-attached blue-emmitting phosphor and color cathode-ray tube
    Patent number: 5363012
    Abstract: A pigment-attached blue-emitting phosphor comprising a blue-emitting phosphor and a blue pigment attached to the surface of the blue-emitting phosphor, said blue pigment being a CoO.ZnO.SiO.sub.2 type pigment containing Mo.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: November 8, 1994
    Assignee: Kasei Optonix, Ltd.
    Inventors: Tomohito Mizukami, Chihito Funayama