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:
Feb. 07, 2006
Filed:
Apr. 10, 2003
Applicant:
Takehiro Shiomoto, Kashihara, JP;
Inventor:
Takehiro Shiomoto, Kashihara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/04 (2006.01); H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor laser device has a laser chip, a stem having a block portion on which the laser chip is mounted, and a cap mounted on the stem so as to cover the block portion. The cap has a cutout portion into which the block portion is partially inserted. With this arrangement, the block portion is enlarged, so that the block portion is easily formed integrally with the stem to reduce the manufacturing cost of the stem, and that heat release is increased to improve operating lifetime and the temperature characteristic of the laser element.