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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.:

US 9909060 B1

PDFFull Text
Date of Patent:
Mar. 06, 2018

Filed:

Nov. 21, 2014

Phosphor, light-emitting device, image display device, pigment, and ultraviolet absorber

Applicant:

National Institute for Materials Science, Ibaraki, JP;

Inventors:

Naoto Hirosaki, Ibaraki, JP;

Takashi Takeda, Ibaraki, JP;

Shiro Funahashi, Ibaraki, JP;

Eiichirou Narimatsu, Ibaraki, JP;

Assignee:

National Institute for Materials Science, Tsukuba-shi, JP;

Attorney:

Trojan Law Offices

Primary Examiner:

C Melissa Koslow

Int. Cl.
CPC ...
C09K 11/64 (2006.01); C09K 11/80 (2006.01); C09K 11/08 (2006.01); C09K 3/00 (2006.01); C09C 1/40 (2006.01); G02F 1/13357 (2006.01); H01J 11/42 (2012.01); H01J 31/12 (2006.01); H01J 31/15 (2006.01); H01L 33/50 (2010.01); H01L 51/50 (2006.01); H05B 33/12 (2006.01); C09K 11/77 (2006.01); H01J 29/20 (2006.01); C09D 5/22 (2006.01); C09D 17/00 (2006.01); H01L 33/56 (2010.01); H01L 33/60 (2010.01); H01L 33/62 (2010.01); G02F 1/1335 (2006.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7792 (2013.01); C09D 5/22 (2013.01); C09D 17/004 (2013.01); C09K 11/0883 (2013.01); C09K 11/7734 (2013.01); H01J 11/42 (2013.01); H01J 29/20 (2013.01); H01L 33/502 (2013.01); H01L 33/56 (2013.01); H01L 33/60 (2013.01); H01L 33/62 (2013.01); G02F 1/1336 (2013.01); G02F 2001/133614 (2013.01); H01J 2329/20 (2013.01); H01L 27/322 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48247 (2013.01); H01L 2224/8592 (2013.01);
Abstract

Provided are an oxynitride phosphor comprising a JEM crystal as a main component and being characterized by light-emitting properties (light emission color or excitation property, light emission spectrum) that is different from the known JEM phosphor, and an application thereof. The phosphor of the present invention comprises the JEM crystal activated with Eu and represented by MAl(Si, Al)(O, N)(where the M element is one or more elements selected from the group consisting of Ca, Sr, Eu, La, Sc, Y, and lanthanoid elements; and includes at least Eu as well as Ca and/or Sr).

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