US Patent Issued to NICHIA on Jan. 27 for "Fluoride phosphor, production method therefor, and light-emitting device" (Japanese Inventor)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,667, issued on Jan. 27, was assigned to NICHIA Corp. (Anan, Japan).

"Fluoride phosphor, production method therefor, and light-emitting device" was invented by Tomokazu Yoshida (Anan, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 mole...