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:
Aug. 12, 2014
Filed:
Oct. 13, 2011
Shintaro Tanaka, Osaka, JP;
Tetsuya Esaki, Osaki, JP;
Shintaro Tanaka, Osaka, JP;
Tetsuya Esaki, Osaki, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A flexible printed circuit board can prevent itself from breaking without losing its flexibility, avoid significantly damaging the operation of an electronic device in the event that a part of the flexible printed circuit board is broken, and warn the user about the occurrence of a breakage. The flexible printed circuit board includes: a connecting portion that is formed at an end of a signal wire for transmitting an electric signal; a signal wiring portion in which a plurality of unidirectionally aligned signal wires are disposed in a vicinity of the connecting portion; a breakage detection portion in which the signal wires are not disposed and that is formed at one of side edges of the signal wiring portion; and a through hole formed between the breakage detection portion and the signal wiring portion.