Invention Application
- Patent Title: PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC ELEMENT
- Patent Title (中): 压电陶瓷和压电元件
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Application No.: US13919602Application Date: 2013-06-17
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Publication No.: US20140055009A1Publication Date: 2014-02-27
- Inventor: Keiichi HATANO , Sumiaki KISHIMOTO , 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
- Priority: JP2012-185100 20120824
- Main IPC: H01L41/187
- IPC: H01L41/187 ; H01L41/047
Abstract:
A piezoelectric ceramic is constituted by a polycrystal whose main phase is an alkali-containing niobate perovskite structure, where both elemental nickel and elemental manganese are present at the grain boundary of the polycrystal. The piezoelectric ceramic is such that drop in piezoelectric characteristics due to application of high electric field is suppressed.
Public/Granted literature
- US09450173B2 Piezoelectric ceramic and piezoelectric element Public/Granted day:2016-09-20
Information query
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