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:
Feb. 05, 2019
Filed:
Mar. 28, 2018
Nidec Sankyo Corporation, Suwa-gun, Nagano, JP;
Masaya Fujimoto, Nagano, JP;
Junro Takeuchi, Nagano, JP;
NIDEC SANKYO CORPORATION, Nagano, JP;
Abstract
A flexible printed circuit board may include a data signal circuit layer on which a data signal circuit is formed; and a destruction detection circuit layer on which a destruction detection circuit, structured to detect at least one of a break and a short-circuit of the destruction detection circuit layer, is formed, the destruction detection circuit layer overlapping the data signal circuit layer. The destruction detection circuit may be structured to carry destruction detection signals which are squarewave-shaped digital signals. The data signal circuit layer may include a first data signal circuit layer on which the data signal circuit is formed, the data signal circuit including linear-shaped first pattern wirings arranged parallel to one another. The destruction detection circuit may include a first destruction detection circuit layer including second pattern wirings formed by a linear portions orthogonally crossing the first pattern wirings and arcuate portions.