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. 22, 2014
Filed:
Feb. 13, 2013
Toyoda Gosei Co., Ltd., Kiyosu, JP;
Masao Kamiya, Kiyosu, JP;
Keisuke Kayamoto, Kiyosu, JP;
Hitomi Saito, Kiyosu, JP;
Hisanobu Noda, Kiyosu, JP;
Toyoda Gosei Co., Ltd., Kiyosu-Shi, Aichi-Ken, JP;
Abstract
A semiconductor light emitting device includes: a first conductivity type semiconductor layer; a light emission layer; a second conductivity type semiconductor layer; a conductive portion of a first polarity electrically connected to the first conductivity type semiconductor layer; and a conductive portion of a second polarity electrically connected to the second conductivity type semiconductor layer. At least one of the conductive portion of the first polarity and the conductive portion of the second polarity includes a plurality of separated electrode portions arranged on a light emission surface. The closer the positions of the separated electrode portions are to a center point of the light emission surface, the separated electrode portions are provided sparsely, and the farther the positions of the separated electrode portions are from a center point of the light emission surface, the separated electrode portions are provided densely.