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. 13, 1990
Filed:
Mar. 25, 1988
Applicant:
Inventors:
Takeshi Kato, Kokubunji, JP;
Kenichi Mizuishi, Hachioji, JP;
Katuaki Chiba, Akigawa, JP;
Takeshi Nakao, Sagamihara, JP;
Masahiro Ojima, Tokyo, JP;
Shigeru Nakamura, Tachikawa, JP;
Takeshi Maeda, Kokubunji, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 44 ; 372 23 ; 357 74 ;
Abstract
A semiconductor laser device utilizing at least a pair of semiconductor laser chips; and a fixing device for fixing the semiconductor laser chips so that electrode surfaces are approximately parallel and opposite to each other and the interval between light emitting spots of the semiconductor laser chips is small.