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. 05, 2016
Filed:
Mar. 28, 2013
Applicant:
Ube Industries, Ltd., Ube-shi, JP;
Inventors:
Assignee:
Ube Industries, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); H01L 33/50 (2010.01);
U.S. Cl.
CPC ...
C09K 11/7734 (2013.01); H01L 33/502 (2013.01); Y10T 428/2982 (2015.01);
Abstract
An oxynitride phosphor power has a fluorescence peak wavelength of 580 to 605 nm, the oxynitride phosphor having a higher external quantum efficiency than ever before. The oxynitride phosphor powder is an oxynitride phosphor powder containing α-SiAlON and aluminum nitride, represented by composition formula:CaEuSiAlONwherein x1, x2, y and z are 0<x1≦2.50, 0.01≦x2≦0.20, 0<y≦2.3 and 1.5≦z≦3.5, or x1, x2, y and z are 0<x1≦2.70, 0.05≦x2≦0.20, 2.3≦y≦5.5 and 1≦z≦2.5.