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:
Apr. 08, 2008
Filed:
Feb. 21, 2005
Chen Ou, Hsin-Chu, TW;
Ting-yang Lin, Hsin-Chu, TW;
Jia-rong Chang, Hsin-Chu, TW;
Shih-kuo Lai, Hsin-Chu, TW;
Chen Ou, Hsin-Chu, TW;
Ting-Yang Lin, Hsin-Chu, TW;
Jia-Rong Chang, Hsin-Chu, TW;
Shih-Kuo Lai, Hsin-Chu, TW;
Epistar Corporation, Hsin-chu, TW;
Abstract
A high-efficiency light-emitting element includes a substrate, a first nitride semiconductor layer formed on the substrate, a nitride light-emitting layer formed on the first nitride semiconductor layer, and a second nitride semiconductor layer formed on the nitride light-emitting layer including a plurality of hexagonal-pyramid cavities on the surface of the second nitride semiconductor layer opposite to the nitride light-emitting layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile