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:
Jan. 27, 2026
Filed:
Sep. 16, 2022
Nichia Corporation, Anan, JP;
Tomokazu Yoshida, Anan, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
Provided is a fluoride phosphor having higher durability. The fluoride phosphor includes a first fluoride and a second fluoride deposited on at least part of a surface of the first fluoride. The first fluoride has a composition containing an alkali metal, Si, Al, Mn, and F, wherein, when the number of moles of the alkali metal is taken as 2, the total number of moles of Si, Al, and Mn is 0.9 to 1.1; the number of moles of Al is more than 0 and less than 0.10; the number of moles of Mn is more than 0 and less than 0.20; and the number of moles of F is 5.9 to 6.1. The second fluoride has a composition which contains an alkali metal, Si, and F, and which is substantially free of Al and Mn.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile