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.

Date of Patent:
Apr. 04, 2017

Filed:

Mar. 28, 2013
Applicant:

Ube Industries, Ltd., Ube-shi, JP;

Inventors:

Hisayoshi Iba, Ube, JP;

Shinichi Ishitobi, Ube, JP;

Yasuyuki Ichizono, Ube, JP;

Assignee:

Ube Industries, Ltd., Ube-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/80 (2006.01); C09K 11/08 (2006.01); H01L 33/50 (2010.01); C09K 11/77 (2006.01); C04B 35/117 (2006.01); C04B 35/44 (2006.01); C04B 35/65 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7774 (2013.01); C04B 35/117 (2013.01); C04B 35/44 (2013.01); C04B 35/652 (2013.01); H01L 33/502 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/764 (2013.01); C04B 2235/80 (2013.01); H01L 2224/16225 (2013.01); Y02B 20/181 (2013.01);
Abstract

A ceramic composite for light conversion, which can make the fluorescence dominant wavelength longer up to 580 nm, further arbitrarily adjust the wavelength in the range of 570 to 580 nm, and undergoes no decrease in fluorescence intensity even when the fluorescence dominant wavelength is made longer, with luminescence unevenness suppressed. A light-emitting device comprising ceramic composite mentioned above. The ceramic composite for light conversion is a solidified body including a composition expressed by the following formula (1), where the composition has a structure where at least two oxide phases of a first phase and a second phase are continuously and three-dimensionally entangled mutually, and the ceramic composite for light conversion is characterized in that the first phase is a (Tb, Y)AlOphase activated with Ce for producing fluorescence, whereas the second phase is an AlOphase.


Find Patent Forward Citations

Loading…