Invention Grant
- Patent Title: Piezoelectric element and method of manufacturing the same
- Patent Title (中): 压电元件及其制造方法
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Application No.: US13903737Application Date: 2013-05-28
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Publication No.: US09281465B2Publication Date: 2016-03-08
- Inventor: Hiroyuki Shimizu , Keiichi Hatano , Yutaka Doshida
- Applicant: TAIYO YUDEN CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2012-163598 20120724
- Main IPC: H01L41/187
- IPC: H01L41/187 ; H01L41/273

Abstract:
A piezoelectric element includes first internal electrodes and second electrodes, as well as piezoelectric ceramic layers that are made of ceramics and arranged between the first internal electrodes and second internal electrodes. Manganese is present relatively more abundantly in the areas of the piezoelectric ceramic layers adjacent to the first internal electrodes and second internal electrodes, compared to at the centers of the piezoelectric ceramic layers. Insulation performance of the piezoelectric element is kept from dropping over the course of use.
Public/Granted literature
- US20140028156A1 PIEZOELECTRIC ELEMENT AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2014-01-30
Information query
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