Title:
PIEZOELECTRIC ELEMENT, ACOUSTIC GENERATOR, ACOUSTIC GENERATION DEVICE, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/017475
Kind Code:
A1
Abstract:
[Problem] To provide: a piezoelectric element with which an acoustic generator having excellent characteristics and a simple configuration can be realized; and an acoustic generator, an acoustic generation device, and an electronic apparatus that all use the piezoelectric element. [Solution] A piezoelectric element 11 comprises: a piezoelectric material layer 24; a first conductor 23a, 33a; a second conductor 21a, 22a; a third conductor 23b, 33b; a fourth conductor 21b, 22b; a fifth conductor 23c, 33c; and a sixth conductor 21c, 22c. The piezoelectric element includes a first portion 11a, a second portion 11b, and a third portion 11c. The first portion (11a) is a portion in which the first conductor 23a, 33a and the second conductor 21a, 22a face each other. The second portion 11b is a portion in which the third conductor 23b, 33b and the fourth conductor 21b, 22b face each other. The third portion 11c is located between the first portion 11a and the second portion 11b, and is a portion in which the fifth conductor 23c, 33c and the sixth conductor 21c, 22c do not face each other.
Inventors:
TAKAHASHI TOORU (JP)
MIYAZATO KENTAROU (JP)
YAMAKAWA KENJI (JP)
MIYAZATO KENTAROU (JP)
YAMAKAWA KENJI (JP)
Application Number:
PCT/JP2015/070700
Publication Date:
February 04, 2016
Filing Date:
July 21, 2015
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
H04R17/00; H01L41/047; H01L41/083; H01L41/09; H04R7/04
Foreign References:
| JP2013211824A | 2013-10-10 | |||
| JPH01270499A | 1989-10-27 | |||
| JP2002336248A | 2002-11-26 |
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