Patents by Inventor Kaname Tsuchikura

Kaname Tsuchikura 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).

  • Patent number: 4890033
    Abstract: A light-emitting composition includes a phosphor material, and an inorganic white powder material. The inorganic powder material is doped with a dopant of Ti, Ce, Cd, Cs, Sb, K, Sc, Zr, Ge, Al, Lu, La, Gd, Tb, B and/or Si. The light-emitting composition can be applied to the inner surface of a bulb of a fluorescent lamp.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: December 26, 1989
    Assignee: Nichia Kagaku Kogyo K.K.
    Inventors: Keizi Ichinomiya, Kouichi Okada, Yuji Itsuki, Kaname Tsuchikura
  • Patent number: 4423349
    Abstract: A green light-emitting fluorescent material prepared from terbium-activated lanthanum cerium orthophosphate expressed by the structural formula:La.sub.x Tb.sub.y Ce.sub.z PO.sub.4where:x+y+z=10.05<x<0.350.05<y<0.30.6<z<0.9and a fluorescent lamp comprising said green light-emitting fluorescent material used alone or in combination with any other form of fluorescent material.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: December 27, 1983
    Assignee: Nichia Denshi Kagaku Co., Ltd.
    Inventors: Shigeharu Nakajima, Keiji Ichinomiya, Koichi Okada, Kaname Tsuchikura, Minoru Kashiwagi