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:
Oct. 21, 2008
Filed:
Jul. 25, 2006
Applicants:
Shinichi Takigawa, Osaka, JP;
Daisuke Ueda, Osaka, JP;
Susumu Koike, Osaka, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor light-emitting device includes a light-emitting layer and a light extraction layer formed on the light-emitting layer and made of a resin material containing particles. The maximum size of each of the particles contained in the light extraction layer is smaller than the wavelength of emitted light penetrating through the light extraction layer.