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. 10, 2012
Filed:
Apr. 20, 2010
Hiroyasu Kaseya, Fujimi, JP;
Hiroyasu Kaseya, Fujimi, JP;
Seiko Epson Corporation, , JP;
Abstract
A light emitting device, having a first area and a second area adjacent to the first area, includes a substrate formed in the first and second areas, a first cladding layer formed above the substrate in the first area, an active layer, having first and second side surfaces, formed above the first cladding layer, a gain area having first and second end surfaces, the first end surface being provided along the second side surface, a second cladding layer formed above the active layer, a guide layer formed above the substrate in the second area, and a core layer, having third and fourth side surfaces, formed above the guide layer. The gain area is angled relative to a first normal direction to the first side surface. The first and second end surfaces are not overlapped each other in the first normal direction.