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:
Jan. 11, 1983
Filed:
Nov. 25, 1981
Applicant:
Inventors:
Takeshi Kakuhashi, Ibaraki, JP;
Yasufumi Miyake, Ibaraki, JP;
Assignee:
Nitto Electric Industrial Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; G03C / ; C23F / ;
U.S. Cl.
CPC ...
430312 ; 29831 ; 29846 ; 156151 ; 156634 ; 430313 ; 156902 ; 174 685 ; 338307 ; 338308 ; 204 15 ; 204 23 ; 427 96 ; 427102 ;
Abstract
In a printed circuit substrate incorporating a resistor pattern film and a conductor pattern film are formed on the two surfaces of a high conductive material layer such as a copper foil, respectively, in a predetermined positional relationship, and an insulating support is combined directly or indirectly with the resistor pattern film on the high conductive material layer, whereby a printed circuit board with resistance elements having high performance can be manufactured, while the number of processing steps can be greatly reduced.