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:
Jul. 26, 2005
Filed:
May. 15, 2003
Tetsuyoshi Inoue, Yamatotakada, JP;
Tetsuyoshi Inoue, Yamatotakada, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a semiconductor laser device, a plane of polarization of a laser beam emitted by a semiconductor laser () is inclined from a substrate surface (A), allowing the semiconductor laser () to be higher in power and higher in reliability. Moreover, a die-bond surface () of this semiconductor laser () is inclined by a specified inclination angle θ with respect to the reference surface () of the stem body (), so that the plane of polarization of the laser beam can be made generally parallel to the reference surface () of the stem body (). Thus, there can be provided a semiconductor laser device which is capable of contributing to a thinning of an optical pickup device and easy to manufacture.