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:
Dec. 20, 2016
Filed:
Sep. 19, 2013
Applicant:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Inventors:
Keita Kobayashi, Omuta, JP;
Yasuhito Fushii, Omuta, JP;
Assignee:
Denka Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/80 (2006.01); F21V 9/08 (2006.01); H01L 33/50 (2010.01); F21Y 101/02 (2006.01); C09K 11/77 (2006.01); C09K 11/08 (2006.01); C04B 35/44 (2006.01); C04B 35/581 (2006.01);
U.S. Cl.
CPC ...
H01L 33/502 (2013.01); C04B 35/44 (2013.01); C04B 35/581 (2013.01); C09K 11/0883 (2013.01); C09K 11/7721 (2013.01); C09K 11/7774 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3229 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48247 (2013.01); H01L 2924/181 (2013.01);
Abstract
An object of the invention is to provide a phosphor that emits a light containing much red and green light components and a light-emitting device and a lighting apparatus comprising the phosphor that have favorable color rendering properties. An oxide nitride phosphor having a garnet structure represented by Formula [1]: AAlC:Ce, in Formula [1], A=(Lu,Y), a+b=1, 0<a<1, 0<b<1, C═(O,N), 10≦c+d≦16, 1.4≦c/d, 2≦w+z≦4, 4.0<x≦7.0); the molar ratio of Ce/A is ≧0.015 and the nitrogen content is 0.007 mass % or more.