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. 24, 1994
Filed:
Nov. 06, 1992
Seiji Asano, Saitama, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A printed circuit board is provided with two soldering land portions on respective lead lines. Each of the soldering land portions has two sub-soldering land portions and a narrow connecting portion for connecting the sub-soldering portions, so that the land portions are substantially H-shaped. When the printed circuit board is dip soldered after being coated with a solder-proof layer exposing the soldering land portions, solder sticks to the soldering land portions in such a way that it is thicker on the sub-soldering land portions but thinner on the narrow connecting portions. Thereafter, the synchro contacts of a camera flash unit are positioned on the respective narrow connecting portions and soldered to the lead lines by a soldering iron or hot air.