Title:
PIEZOELECTRIC FILM
Document Type and Number:
WIPO Patent Application WO/2022/190715
Kind Code:
A1
Abstract:
Provided is a highly-flexible piezoelectric film capable of sufficiently ensuring conduction through an electrode layer. The piezoelectric film comprises a piezoelectric layer, electrode layers respectively formed on both sides of the piezoelectric layer, and protective layers, each laminated on the surface of each electrode layer on the reverse side of the surface on the piezoelectric layer side, wherein one protective layer has a hole portion that passes through to an electrode layer from the surface and has a flexible conductive member that is disposed inside the hole portion and includes at least one of a conductive fabric, a metal fabric and a conductive urethane foam which electrically connects the electrode layer and a conductor.
Inventors:
KAGAWA YUSUKE (JP)
ASHIKAWA TERUO (JP)
ASHIKAWA TERUO (JP)
Application Number:
PCT/JP2022/003906
Publication Date:
September 15, 2022
Filing Date:
February 02, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H04R1/02; H01L41/047; H01L41/09; H01L41/18; H01L41/23; H01L41/29; H04R1/24; H04R17/00
Domestic Patent References:
| WO2019093092A1 | 2019-05-16 | |||
| WO2017073317A1 | 2017-05-04 |
Foreign References:
| JP2016015354A | 2016-01-28 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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