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:
Jun. 28, 2016
Filed:
Dec. 20, 2013
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Shinsaku Watanabe, Yamato, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/02 (2006.01); H05K 1/03 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0269 (2013.01); H05K 1/0266 (2013.01); H05K 1/0274 (2013.01); H05K 1/0393 (2013.01); H05K 2201/0108 (2013.01); H05K 2201/09936 (2013.01);
Abstract
A flexible printed circuit board having a copper foil character with good visibility and without copper foil pattern peeling. The flexible printed circuit board has a base material having optical transparency, a wiring pattern formed on one surface of the base material; a first opaque cover lay film covering a surface of the wiring pattern, a character formed on the other surface of the base material; and a second opaque cover lay film covering a surface of the character. The first opaque cover lay film has an opening portion is formed therein, and the character is formed so as to be visually recognizable through the opening portion.