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:
Sep. 23, 2025
Filed:
Mar. 03, 2021
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventors:
Assignee:
Fujikura Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10N 30/30 (2023.01); G01L 1/16 (2006.01); H10N 30/60 (2023.01);
U.S. Cl.
CPC ...
H10N 30/302 (2023.02); G01L 1/16 (2013.01); H10N 30/60 (2023.02);
Abstract
A piezoelectric coaxial sensor includes: a center conductor including a conductive wire; a polymer piezoelectric layer covering an outer peripheral surface of the center conductor; a first outer conductor surrounding an outer peripheral surface of the polymer piezoelectric layer; a first jacket layer covering an outer peripheral surface of the first outer conductor; and a second outer conductor surrounding an outer peripheral surface of the first jacket layer. A voltage is generated between the center conductor and the first outer conductor based on induced charges generated in the polymer piezoelectric layer.