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. 13, 2016
Filed:
Apr. 25, 2013
Applicant:
National Institute for Materials Science, Ibaraki, JP;
Inventors:
Kiyoshi Shimamura, Ibaraki, JP;
Encarnacion Antonia Garcia Villora, Ibaraki, JP;
Assignee:
NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Ibaraki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); H01L 33/50 (2010.01); C30B 11/00 (2006.01); C30B 15/00 (2006.01); C30B 29/12 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7733 (2013.01); C09K 11/7774 (2013.01); C30B 11/00 (2013.01); C30B 15/00 (2013.01); C30B 29/12 (2013.01); H01L 33/504 (2013.01); H01L 33/502 (2013.01); H01L 2224/13 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/49107 (2013.01);
Abstract
A UV photoexcited red light-emitting material comprising a fluoride single crystal represented by the chemical formula: MREF, wherein M is at least one metal element belonging to Group 2 of the Periodic Table selected from the group consisting of Be, Mg, Ca, Sr, and Ba, RE is a rare earth element, and the relationships: 0<x≦0.4 and 0≦w≦0.5 are satisfied.