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:
Sep. 01, 1987
Filed:
Mar. 10, 1986
Applicant:
Inventors:
Masamichi Watanabe, Miyagi, JP;
Yasushi Watanabe, Miyagi, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338307 ; 174 / ; 338314 ;
Abstract
A circuit board that can be manufactured economically and reliably comprises first and second insulating films and an electrically conductive heat-seal film. Circuit patterns of first and second electrical parts are formed on the first and second insulating films, respectively. These circuit patterns are selectively connected with each other through the heat-seal film. The first insulating film has a hole in which the second insulating film is retained in such a way that the patterns on the first and second insulating films are substantially coplanar with each other.