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. 28, 2012
Filed:
Nov. 24, 2008
Masaya Ishida, Mihara, JP;
Daisuke Hanaoka, Kyoto, JP;
Takeshi Horiguchi, Higashihiroshima, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A cap member capable of alleviating degradation of reliability and improving fabrication yields is provided. The cap member has a cylindrical side wall portion, a top face portion closing one end of the side wall portion and having a light exit hole formed therein to allow extraction of laser light from a semiconductor laser chip; a light transmission window fitted to the top face portion to stop the light exit hole, and a flange portion arranged at the other end of the side wall portion and welded on the upper face of a stem on which the semiconductor laser chip is mounted. A groove portion is formed in an inner surface of the top face portion, and this groove portion makes part of the top face portion in a predetermined region less thick than the other part thereof.