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. 29, 1992
Filed:
Apr. 09, 1991
Junichi Itsuji, Iruma, JP;
Nippon CMK Corp., , JP;
Abstract
The method for forming a carbon resistance in a printed wiring board is characterized in that, in a method for forming a carbon resistance in the circuit of a printed wiring board, a carbon resistance to be disposed in the circuit which is formed in a laminated film is previously deposited on and correspondingly to the surface of said circuit, and the protective film of the carbon resistance of the laminated film is removed. In accordance with the method for forming a carbon resistance in a printed wiring board, a carbon resistance which is previously formed in a laminated film and to be disposed in the printed wiring board circuit is deposited on and correspondingly to the surface of the circuit, and simultaneously the protective film of the carbon resistance of the laminated film is removed, thereby performing the formation, and it is thus possible to form a carbon resistance which always comprises a stable resistance value, without depending on the smoothness of the circuit surface or the forming conditions of the carbon resistance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile