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. 28, 1989
Filed:
Jul. 24, 1987
Applicant:
Inventors:
Yasunori Tokuda, Amagasaki, JP;
Kenzo Fujiwara, Amagasaki, JP;
Noriaki Tsukada, Amagasaki, JP;
Keisuke Kojima, Amagasaki, JP;
Yoshinori Nomura, Amagasaki, JP;
Teruhito Matsui, Amagasaki, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 45 ; 372 44 ; 372 46 ; 372 47 ; 372 49 ; 372 50 ;
Abstract
A semiconductor laser having an active layer of quantum well structure, where the resonator loss is enhanced thereby to conduct an oscillation at a high quantum level.
Tokuda, Yasunori. (1989). Semiconductor laser device (U.S. Patent No. 4817110). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4817110
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile