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:
Aug. 20, 1991
Filed:
Apr. 13, 1990
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A green light-emitting semiconductor laser using a superlattice layer wherein BP layers and Ga.sub.x Al.sub.1-x N (0.ltoreq.x.ltoreq.1) layers are alternately stacked and each of the Ga.sub.x Al.sub.1-x N (0.ltoreq.x.ltoreq.1) layers has a zinc blende type crystal structure, or a Ga.sub.x Al.sub.y B.sub.1-x-y N.sub.z P.sub.1-z (0.ltoreq.x, y, z.ltoreq.1) mixed crystal layers with a zinc blende type structure a first clad layer of a first conductivity type, an active layer, and a second clad layer of a second conductivity type, together constituting a double heterojunction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile