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. 04, 1998
Filed:
Sep. 30, 1996
Applicant:
Inventors:
Yuji Kimura, Nagoya, JP;
Kinya Atsumi, Okazaki, JP;
Katsunori Abe, Chita-gun, JP;
Tetsuo Toyama, Chiryu, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ;
U.S. Cl.
CPC ...
372 43 ; 372 44 ; 372 46 ;
Abstract
A high-output semiconductor laser element has one of a Cr/Pt/Au electrode and Cr/Ni/Au electrode as a P-type electrode to provide an electrode construction that is robust with respect to heat, high in reliability and stable for a long period of time. The P-type electrode is disposed on an N-type substrate via an epitaxial layer and defines a stripe 41 having a width of 100 .mu.m or more.