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:
Nov. 28, 2017
Filed:
May. 13, 2014
National Institute for Materials Science, Ibaraki, JP;
Naoto Hirosaki, Ibaraki, JP;
Takashi Takeda, Ibaraki, JP;
Shiro Funahashi, Ibaraki, JP;
Eiichirou Narimatsu, Ibaraki, JP;
National Institute for Materials Science, Tsukuba-shi, JP;
Abstract
A phosphor having different light emission characteristics from the conventional phosphor, having high emission intensity and chemical and thermal stability, combined with LED of less than 450 nm. This phosphor includes an inorganic compound comprising: a crystal represented by BaSiAlN, an inorganic crystal having the same crystal structure as BaSiAlNcrystal, or a solid solution crystal thereof, comprising A element, D element, E element, and X element (A is one or more elements selected from Li, Mg, Ca, Sr, Ba, and La; D is one or more elements selected from Si, Ge, Sn, Ti, Zr, and Hf; E is one or more elements selected from B, Al, Ga, In, Sc, and Y; X is one or more elements selected from O, N, and F), into which M element is solid-solved (M is one or more elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb).