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:
May. 18, 2004
Filed:
Dec. 02, 2002
Takao Adachi, Chita, JP;
Kazuyoshi Inoue, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A flexible printed wiring board is provided, including a flexible electrically insulating polyimide substrate, first and second electrically conductive patterns each including conductive strips arranged in parallel with each other on opposed major surfaces, respectively, of the electrically insulating substrate, and first and second flexible electrically insulating polyimide covers cemented to the respective major surfaces of the electrically insulating substrate by first and second electrically insulating adhesive layers by thermocompression bonding such that the first and second conductive patterns are covered with the first and second flexible electrically insulating covers, respectively. The first and second conductive patterns are arranged symmetrically with respect to a geometrical center line or neutral stress line when viewed in the thickness direction of the flexible printed wiring board, or are arranged asymmetrically such that the conductive patterns are deviated toward an inner side of the flexible printed wiring board in a bent condition.