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:
Aug. 16, 2022
Filed:
Apr. 17, 2020
Applicant:
Nichia Corporation, Anan, JP;
Inventor:
Tomokazu Yoshida, Anan, JP;
Assignee:
NICHIA CORPORATION, Anan, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/61 (2006.01); C09K 11/77 (2006.01); C09K 11/08 (2006.01); H01L 33/50 (2010.01); C01B 33/10 (2006.01);
U.S. Cl.
CPC ...
C09K 11/617 (2013.01); C01B 33/103 (2013.01); C09K 11/0883 (2013.01); C09K 11/7729 (2013.01); C09K 11/7734 (2013.01); C09K 11/7774 (2013.01); H01L 33/504 (2013.01); C01P 2004/03 (2013.01); C01P 2004/52 (2013.01); C01P 2006/11 (2013.01); C01P 2006/60 (2013.01); H01L 2933/0041 (2013.01);
Abstract
Provided is a fluoride fluorescent material having high luminance. The fluoride fluorescent material has a composition containing Mn, A that is at least one element or ion selected from the group consisting of alkali metal elements and NH, at least one element M selected from the group consisting of Group-4 elements and Group-14 elements, and F; and contains spherical fluoride particles.