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:
Dec. 20, 1994
Filed:
Apr. 25, 1994
Applicant:
Inventors:
Hiroyuki Okuyama, Kanagawa, JP;
Katsuhiro Akimoto, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 45 ; 372 46 ; 257 13 ;
Abstract
A semiconductor laser has a first cladding layer of a first conductivity type, an active layer, and a second cladding layer of a second conductivity type, which are successively deposited on a semiconductor substrate by epitaxial growth. The first cladding layer and/or the second cladding layer is made of a compound semiconductor material of a zincblende crystal structure containing Mg.