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.

Date of Patent:
Feb. 09, 2010

Filed:

Apr. 18, 2005
Applicants:

Jin-woo Cho, Seongnam-si, KR;

Seong-woon Booh, Yongin-si, KR;

Dong-woo Lee, Seoul, KR;

Ki-taek Kim, Yongin-si, KR;

Yun-mi Seo, Yongin-si, KR;

Dong-ok Kwak, Suwon-si, KR;

Inventors:

Jin-woo Cho, Seongnam-si, KR;

Seong-woon Booh, Yongin-si, KR;

Dong-woo Lee, Seoul, KR;

Ki-taek Kim, Yongin-si, KR;

Yun-mi Seo, Yongin-si, KR;

Dong-ok Kwak, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A flexible printed circuit board is robust to a repeated twisting and consists of a minute circuit printed on a flexible insulated material sheet, and has the bent parts of the opposite edges symmetrical in structure. The bent parts are straightened out when twisting occurs. In the flexible printed circuit board, the opposite edges are longer in length than the middle part such that the tensile deformation at the opposite edges at the time of twisting does not occur or is minimized.


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