The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 2009
Filed:
Jan. 31, 2008
Applicants:
Naomi Shida, Tokyo, JP;
Masaaki Tamatani, Fujisawa, JP;
Yoshihito Tsutsui, Chigasaki, JP;
Kazuaki Ootsuka, Yokosuka, JP;
Ryosuke Hiramatsu, Kawasaki, JP;
Inventors:
Naomi Shida, Tokyo, JP;
Masaaki Tamatani, Fujisawa, JP;
Yoshihito Tsutsui, Chigasaki, JP;
Kazuaki Ootsuka, Yokosuka, JP;
Ryosuke Hiramatsu, Kawasaki, JP;
Assignees:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/55 (2006.01); C09K 11/59 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a fluorescent substance comprising an alkaline earth ortho-silicate, the fluorescent substance being activated by Eu, and further comprising at least one selected from the group consisting of La, Gd, Cs and K.