Title:
PIEZOELECTRIC ELEMENT
Document Type and Number:
Japanese Patent JP2019121664
Kind Code:
A
Abstract:
To provide a piezoelectric element in which shift of a resonance point to a bass side is achieved.SOLUTION: The inventors have newly found that, with a configuration in which the periphery of an active region 16 is surrounded by an inactive region 18 as in a configuration of a piezoelectric element 1, a resonance point of the piezoelectric element 1 moves to a bass side. According to the piezoelectric element 1 whose resonance point has been moved to the bass side, a sound pressure high enough for practical use can be materialized when applied to an acoustic device.SELECTED DRAWING: Figure 4
More Like This:
Inventors:
SHIMURA YOSHIKAZU
KIJIMA KAORU
SAKAMOTO HIDEYA
TATEMOTO KAZUSHI
SASAKI RYUHEI
OTA YOSHIO
TAKEDA AKITAKE
KIJIMA KAORU
SAKAMOTO HIDEYA
TATEMOTO KAZUSHI
SASAKI RYUHEI
OTA YOSHIO
TAKEDA AKITAKE
Application Number:
JP2017254905A
Publication Date:
July 22, 2019
Filing Date:
December 28, 2017
Export Citation:
Assignee:
TDK CORP
International Classes:
H01L41/083; H01L41/047; H04R17/00
Domestic Patent References:
| JP2015122438A | 2015-07-02 | |||
| JP2015046947A | 2015-03-12 |
Foreign References:
| WO2006073018A1 | 2006-07-13 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Takashi Mikami
Yoshiki Kuroki
Takashi Mikami