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:
Jul. 12, 2016
Filed:
Apr. 18, 2013
Tohoku University, Miyagi, JP;
Tokuyama Corporation, Yamaguchi, JP;
Sumito Ishizu, Yamaguchi, JP;
Kentaro Fukuda, Yamaguchi, JP;
Noriaki Kawaguchi, Yamaguchi, JP;
Akira Yoshikawa, Miyagi, JP;
Takayuki Yanagida, Miyagi, JP;
Yui Yokota, Miyagi, JP;
Yutaka Fujimoto, Miyagi, JP;
TOKUYAMA CORPORATION, Yamaguchi, JP;
TOHOKU UNIVERSITY, Miyagi, JP;
Abstract
A light emitting element according to one embodiment of the present invention is configured of a metal fluoride crystal which is represented by chemical formula LiM1M2F6 (wherein Li includes 6Li; M1 represents at least one alkaline earth metal element selected from among Mg, Ca, Sr and Ba; and M2 represents at least one metal element selected from among Al, Ga and Sc), said metal fluoride crystal containing 0.02% by mole or more of Eu and having an Eu2+ concentration of less than 0.01% by mole.