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. 19, 2011
Filed:
Aug. 27, 2008
Applicants:
Hiroshi Osawa, Chiba, JP;
Naoki Fukunaga, Munakata, JP;
Hironao Shinohara, Ichihara, JP;
Inventors:
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract
There is provided a semiconductor light-emitting device having excellent light extraction efficiency and low wavelength unevenness, a manufacturing method thereof, and a lamp. A semiconductor light-emitting device includes an n-type semiconductor layer, a light-emitting layer, a p-type semiconductor layer, and a titanium oxide-based conductive film layerlaminated in this order, wherein a random concavo-convex surfaceis formed on at least a part of the surface of the titanium oxide-based conductive film layer.