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:
Apr. 23, 2019
Filed:
Nov. 12, 2013
Applicant:
Denka Company Limited, Tokyo, JP;
Inventor:
Hideyuki Emoto, Machida, JP;
Assignee:
DENKA COMPANY LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); C09K 11/77 (2006.01); C09K 11/08 (2006.01); F21V 9/08 (2018.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01);
U.S. Cl.
CPC ...
C09K 11/7734 (2013.01); C09K 11/0883 (2013.01); F21V 9/08 (2013.01); H01L 33/502 (2013.01); H01L 33/56 (2013.01);
Abstract
Provided is a Li-solid-solubilized α-SiAlON phosphor containing Lias solid solubilized for stabilization of the structure that is higher in luminous efficiency than before and a light-emitting element and a lighting device comprising the same. The (Li and Eu)-containing α-SiAlON crystal has a Li content of 1.8 to 3 mass %, an Eu content of 0.1 to 1.5 mass % and an average particle diameter, as determined by laser diffraction/scattering method, of 7 to 35 μm. The phosphor is used in the light-emitting element and the lighting device.