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:
Sep. 29, 2009
Filed:
Dec. 20, 2005
Applicants:
Ryouhei Nakamura, Saitama, JP;
Hironari Matsumoto, Saitama, JP;
Nobuyuki Yamada, Saitama, JP;
Akio Miyamoto, Yamanashi, JP;
Inventors:
Ryouhei Nakamura, Saitama, JP;
Hironari Matsumoto, Saitama, JP;
Nobuyuki Yamada, Saitama, JP;
Akio Miyamoto, Yamanashi, JP;
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/20 (2006.01); C09K 11/66 (2006.01); C09K 11/77 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aspect in accordance with the present invention provides, a fluorescent material with garnet structure containing Gd, Al, Ga, and O at least, containing Lu and/or Y, and also containing Ce as an activator, wherein said fluorescent material is expressed as (GdLCe)(AlGa)O, wherein L is Lu and/or Y, wherein 0<a≦0.15, 0<x<1.0, 0.0003≦z≦0.0167 (here, x+z<1.0), and 0.2≦u≦0.6.