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:
May. 26, 2020
Filed:
Mar. 09, 2018
Applicant:
Nichia Corporation, Anan-shi, Tokushima, JP;
Inventors:
Assignee:
NICHIA CORPORATION, Anan-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); H01L 33/32 (2010.01); H01L 33/48 (2010.01); H01L 33/56 (2010.01); H01L 33/62 (2010.01); C09K 11/77 (2006.01); C09K 11/08 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7734 (2013.01); C09K 11/0833 (2013.01); C09K 11/0883 (2013.01); H01L 33/32 (2013.01); H01L 33/486 (2013.01); H01L 33/502 (2013.01); H01L 33/504 (2013.01); H01L 33/56 (2013.01); H01L 33/62 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48247 (2013.01); H01L 2224/48257 (2013.01); H01L 2224/73265 (2013.01); H01L 2933/0041 (2013.01);
Abstract
A method for producing a nitride fluorescent material having high emission luminance can be provided. The method includes heat-treating a raw material mixture containing silicon nitride, silicon, an aluminium compound, a calcium compound, and a europium compound.