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. 28, 1999
Filed:
Sep. 13, 1995
Applicant:
Inventor:
Satoshi Uchida, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ;
U.S. Cl.
CPC ...
372 46 ;
Abstract
A semiconductor laser having a double hetero junction structure including: an active layer; cladding layers including an upper layer and a lower layer, the cladding layers sandwiching the active layer; and a current blocking layer including a stripe recess for acting as a current passage. The current blocking layer is provided within at least one of the cladding layers. The current blocking layer comprises a plurality of layers, at least one layer of the layers having a slit therein extending transversely to the stripe recess.
Uchida, Satoshi. (1999). Semiconductor laser and manufacturing method therefor (U.S. Patent No. 6009112). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6009112
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile