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:
Mar. 29, 2016
Filed:
Mar. 30, 2012
Hitoshi Shimizu, Chiba, JP;
Toshihito Suzuki, Chiba, JP;
Yasumasa Kawakita, Chiba, JP;
Keishi Takaki, Chiba, JP;
Hitoshi Shimizu, Chiba, JP;
Toshihito Suzuki, Chiba, JP;
Yasumasa Kawakita, Chiba, JP;
Keishi Takaki, Chiba, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Abstract
Provided is a laser device comprising a substrate, an active layer, and a current confinement layer. The current confinement layer includes an oxide layer that is formed extending from a edge of the current confinement layer in a parallel plane parallel to a surface of the substrate, toward a center of the current confinement layer along the parallel plane, and that does not have an inflection point between the edge and a tip portion formed closer to the center or has a plurality of inflection points formed between the edge and the tip portion.