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:
Jan. 31, 2017
Filed:
Apr. 10, 2014
Applicant:
Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;
Inventors:
Kenya Tanaka, Osaka, JP;
Ryouhei Nakamura, Osaka, JP;
Assignee:
Hitachi Metals, Ltd., Minato-ku, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/20 (2006.01); C09K 11/77 (2006.01); G21K 4/00 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7774 (2013.01); C09K 11/7792 (2013.01); G21K 4/00 (2013.01); G21K 2004/06 (2013.01);
Abstract
A fluorescent material having a composition formula represented as (GdLCeTb)(AlGaSc)O(L is at least one element selected from Y and Lu), satisfying the following ranges: 0≦a≦0.1, 0≦b≦0.1, 0≦α≦0.3, 0.0003≦β≦0.005, 0.02≦γ≦0.2, 0.27≦u≦0.75, and 0≦v≦0.02. Preferably, 0<a≦0.07, 0<b≦0.07, 0<α≦0.15, 0.0003≦β≦0.004, 0.03≦γ≦0.15, 0.35≦u≦0.70, and 0≦v≦0.02.