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:
May. 04, 2004
Filed:
Mar. 11, 2003
Applicant:
Inventor:
Yasuyuki Kawanishi, Osaka, JP;
Assignee:
Sumitomo Electric Industries Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02G 3/08 ; H05K 5/00 ;
U.S. Cl.
CPC ...
H02G 3/08 ; H05K 5/00 ;
Abstract
An optical linkage device includes a trimmable resistance for controlling output characteristics of a laser diode; a board having the trimmable resistance mounted thereon; and a case at least covering the board, the case provided with an adjustment hole for adjustment of a resistance value of the trimmable resistance. This arrangement permits the adjustment of the output of the laser diode to be performed with the case fixed to place. Thus is provided the optical linkage device capable of maintaining a more stable product quality.