Title:
PIEZOELECTRIC FILM AND LAMINATED PIEZOELECTRIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/157636
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a piezoelectric film which can inhibit heat generation even if continuously driven; and a laminated piezoelectric element formed by laminating the piezoelectric film. The problem can be solved by: a piezoelectric film comprising a piezoelectric layer and electrode layers provided on the respective surfaces of the piezoelectric layer; and a laminated piezoelectric element in which are laminated a plurality of layers of the flexible piezoelectric film, comprising a piezoelectric layer and electrode layers provided on the respective surfaces of the piezoelectric layer, wherein at least one surface comprises a heat-radiating layer having a thermal emittance of at least 0.8.
Inventors:
KAGAWA YUSUKE (JP)
Application Number:
PCT/JP2023/003146
Publication Date:
August 24, 2023
Filing Date:
February 01, 2023
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H10N30/88; H04R17/00; H10N30/20; H10N30/50; H10N30/85
Domestic Patent References:
| WO2020261822A1 | 2020-12-30 | |||
| WO2021225075A1 | 2021-11-11 |
Foreign References:
| JP2015122463A | 2015-07-02 | |||
| JP2014093423A | 2014-05-19 | |||
| JP2017035802A | 2017-02-16 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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