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. 16, 2022
Filed:
Nov. 07, 2017
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Kansai University, Suita, JP;
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Tetsuo Yoshida, Tokyo-to, JP;
Yoshiro Tajitsu, Osaka-fu, JP;
Atsuko Kato, Osaka-fu, JP;
Hiroki Takeoka, Nara-ken, JP;
Yukihiro Shimasaki, Hyogo-ken, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
KANSAI UNIVERSITY, Suita, JP;
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
Provided is a piezoelectric laminate element that outputs a fixed output voltage even in response to a static load for which an output voltage could not be obtained using a conventional piezoelectric element. A piezoelectric laminate body in which a plurality of piezoelectric polymer film layers consisting of film such as polylactic acid film that exhibits piezoelectricity in the planar direction are laminated is used as a piezoelectric laminate element. The piezoelectric laminate body is given a cylindrical shape, rounded rectangle shape, or other partially curved shape. The output voltage follows the increase and decrease of the applied load, and if a fixed load is continuously applied, a fixed output voltage is continuously output, and a piezoelectric laminate element is obtained that outputs a fixed output voltage even if a load is static.