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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.:

US 6804276 B1

PDFFull Text
Date of Patent:
Oct. 12, 2004

Filed:

Sep. 14, 2001

Semiconductor laser device which removes influences from returning light of three beams and a method of manufacturing the same

Applicant:
Inventors:

Koichi Gen-ei, Ichikawa, JP;

Kazuo Fukuoka, Yokohama, JP;

Seiji Iida, Yokohama, JP;

Makoto Okada, Ichikawa, JP;

Assignee:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Attorney:

Hogan & Hartson, LLP

Primary Examiner:

David Vu

Assistant Examiner:

Dung T Nguyen

Int. Cl.
CPC ...
H01S 5/00 ;
U.S. Cl.
CPC ...
H01S 5/00 ;
Abstract

A semiconductor laser chip has an emission facet for emitting a laser beam. A sub-mount has a first surface and at least one second surface vertical to the first surface. The semiconductor laser chip is provided on the first surface of the sub-mount. The second surface arranged in line with the emission facet of the semiconductor laser chip is inclined at an angle of 3 to 30 degrees. The inclined second surface reflects reflection light of a sub-beam diffracted from a main beam emitted by the semiconductor laser chip.

Find Patent Forward Citations

Gen-ei, Koichi. (2004). Semiconductor laser device which removes influences from returning light of three beams and a method of manufacturing the same (U.S. Patent No. 6804276). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6804276

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