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:
May. 25, 2010
Filed:
Oct. 18, 2007
Taichiroo Konno, Hitachi, JP;
Takashi Furuya, Hitachi, JP;
Taichiroo Konno, Hitachi, JP;
Takashi Furuya, Hitachi, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
A first conductivity type cladding layer, a first side multilayer, an active layer, a second side multilayer, and a second conductivity type cladding layerare provided in a semiconductor light emitting device. The first side multilayeris provided between the first conductivity type cladding layerand the active layer, and the second side multilayeris provided between the active layerand the second conductivity type cladding layer. Each of the multilayeris transparent with respect to the light generated at the active layer, having a bandgap larger than that of the active layer, and lattice-matched with the active layer