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. 18, 2006
Filed:
Dec. 24, 2003
Mamoru Miyachi, Saitama-ken, JP;
Atsushi Watanabe, Saitama-ken, JP;
Hirokazu Takahashi, Saitama-ken, JP;
Yoshinori Kimura, Saitama-ken, JP;
Mamoru Miyachi, Saitama-ken, JP;
Atsushi Watanabe, Saitama-ken, JP;
Hirokazu Takahashi, Saitama-ken, JP;
Yoshinori Kimura, Saitama-ken, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An improved semiconductor laser device is provided which has a small distance between laser light emitting spots. Such laser device comprises i) a first light emitting element including a laser oscillation section provided with a ridge waveguide and formed by forming a group-III nitride semiconductor film on a substrate, an insulating layer and an ohmic electrode layer, ii) a second light emitting element including a laser oscillation section provided with a waveguide and formed by forming III–V compound semiconductor film, an insulating layer and an ohmic electrode layer. By virtue of the adhesive metal layer interposed between the two ohmic electrode layers, the two laser oscillation sections are combined together, thereby forming the improved semiconductor laser device which has a small distance between laser light emitting spots of the two laser oscillation sections.