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. 06, 2010
Filed:
Mar. 17, 2008
Applicants:
Daisuke Imanishi, Kanagawa, JP;
Shigeki Miyazaki, Kanagawa, JP;
Kaori Naganuma, Kanagawa, JP;
Yoshiro Takiguchi, Kanagawa, JP;
Inventors:
Daisuke Imanishi, Kanagawa, JP;
Shigeki Miyazaki, Kanagawa, JP;
Kaori Naganuma, Kanagawa, JP;
Yoshiro Takiguchi, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A laser diode capable of operating at high temperature by preventing carrier overflow is provided. A laser diode includes an AlGaInP-based laminate configuration including at least a lower cladding layer, an active layer and an upper cladding layer in this order, wherein the AlGaInP-based laminate configuration receives a larger compressive stress than 2200 ppm from a stress source.