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Title:
PIEZOELECTRIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2020/250657
Kind Code:
A1
Abstract:
The piezoelectric element is provided with: a piezoelectric body made of a piezoelectric material; and a first electrode and a second electrode disposed on the piezoelectric body. The piezoelectric body has a base section and multiple drive sections. The base section has a first main surface and a second main surface opposite each other. The multiple drive sections are arranged apart from each other and disposed on the first main surface. Each of the multiple drive sections has a third main surface in contact with the first main surface and a fourth main surface opposite the third main surface. The base section has multiple first regions where the multiple drive sections are disposed and second regions disposed between adjoining first regions. The base section is curved.

Inventors:
OHTA YOSHIKI (JP)
SUGAWARA JUN (JP)
ANDOU KENICHIRO (JP)
SATO NANA (JP)
TAKEDA AKIHIRO (JP)
Application Number:
JP2020/020588
Publication Date:
December 17, 2020
Filing Date:
May 25, 2020
Export Citation:
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Assignee:
TDK CORP (JP)
International Classes:
H04R17/00; H01L41/047; H01L41/113; H01L41/257
Domestic Patent References:
WO2006134754A12006-12-21
Foreign References:
JPH11317999A1999-11-16
JP2002052024A2002-02-19
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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