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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 10342091 B1

PDFFull Text
Expired
Date of Patent:
Jul. 02, 2019

Filed:

Nov. 17, 2015

Light-emitting device

Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Kazuaki Kaneko, Sakai, JP;

Makoto Matsuda, Sakai, JP;

Hiroaki Onuma, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Douglas W Owens

Assistant Examiner:

Jianzi Chen

Int. Cl.
CPC ...
H05B 33/08 (2006.01); H01L 33/50 (2010.01); H01L 25/075 (2006.01); H05B 37/02 (2006.01); H01L 33/62 (2010.01);
U.S. Cl.
CPC ...
H05B 33/0857 (2013.01); H01L 25/0753 (2013.01); H01L 33/50 (2013.01); H05B 33/0803 (2013.01); H05B 33/0827 (2013.01); H05B 37/02 (2013.01); H01L 33/62 (2013.01); H01L 2224/48137 (2013.01);
Abstract

Provided is a light-emitting device that is able to adjust a color temperature by power supplied from a single power source. The light-emitting device includes an anode electrode land, a cathode electrode land, and three or more wires that are provided in parallel and are connected to the anode electrode land and the cathode electrode land, in which at least three wires among the three or more wires have different forward current-forward voltage characteristics and are connected to different light emitting portions, and the color temperature of light emitted from the whole of the light-emitting portions is able to be adjusted.

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Kaneko, Kazuaki. (2019). Light-emitting device (U.S. Patent No. 10342091). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10342091

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