Patents by Inventor Yoshitugu Nishimura

Yoshitugu Nishimura 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: 4336154
    Abstract: A divalent metal fluorohalide phosphor having a compositional formula:(Ba.sub.1-x, M.sup.II.sub.x)F.sub.2.aBaX.sub.2 :yEu,zB(wherein, M.sup.II is at least one member selected from the group consisting of beryllium, magnesium, calcium, strontium, zinc, and cadmium, X is at least one member selected from the group consisting of chlorine, bromine, and iodine, and a, x, y, and z are numbers satisfying the respective conditions 0.5.ltoreq.a.ltoreq. 1.25, 0.ltoreq.x.ltoreq.1, 10.sup.-6 .ltoreq.y.ltoreq.2.times.10.sup.-1, and 0<z.ltoreq.2.times.10.sup.-1), when exposed to and allowed to absorb radiation or ionizing radiation and subsequently excited with a light of 450 to 800 nm of wave length, provides stimulated emission of light with heretofore unattainable high luminance.A radiation image storage panel is produced by depositing on a support a phosphor layer formed of the phosphor of this invention.
    Type: Grant
    Filed: July 14, 1981
    Date of Patent: June 22, 1982
    Assignee: Kasei Optonix, Ltd.
    Inventors: Yoshitugu Nishimura, Noboru Kotera