Invention Grant
- Patent Title: Piezoelectric element and piezoelectric device using the same
- Patent Title (中): 压电元件和使用其的压电器件
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Application No.: US13969759Application Date: 2013-08-19
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Publication No.: US09406861B2Publication Date: 2016-08-02
- Inventor: Hiroyuki Ukai , Shungo Kanai , Hiroyuki Hayashi
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2011-043847 20110301
- Main IPC: H01L41/083
- IPC: H01L41/083 ; H01L41/047 ; F04B43/04 ; H01L41/09

Abstract:
A piezoelectric element, which is capable of being driven with a relatively low voltage and obtaining a large displacement amount at a central portion thereof and is not degraded in characteristics over time and is easily mountable on or in a piezoelectric device, includes a piezoelectric body including a plurality of laminated piezoelectric layers, ground electrodes, central electrodes, and peripheral electrodes. A surface of the piezoelectric body includes first to fifth terminals. The extraction of the ground terminals, the central electrodes, and the peripheral electrodes to the first to fifth terminals is configured to connect one terminal of an alternating-current power supply to the third terminal and connect the other terminal of the alternating-current power supply to the first terminal and the second terminal.
Public/Granted literature
- US20130334933A1 PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC DEVICE USING THE SAME Public/Granted day:2013-12-19
Information query
IPC分类: