Invention Grant
- Patent Title: Piezoelectric composition and piezoelectric element
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Application No.: US14610321Application Date: 2015-01-30
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Publication No.: US09831418B2Publication Date: 2017-11-28
- Inventor: Taku Masai , Masahito Furukawa , Hiroki Katoh
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2014-020296 20140205; JP2014-253868 20141216
- Main IPC: H01L41/187
- IPC: H01L41/187 ; H01L41/18 ; H01L41/08 ; H01L41/083 ; H01L41/316

Abstract:
The present invention aims to provide a piezoelectric composition and a piezoelectric element. In the piezoelectric composition, the main component is represented by the following formula with a perovskite type structure, (Bi(0.5x+y+z)Na0.5x)m(Ti(x+0.5y)Mg0.5yMez)O3 wherein, 0.05≦x≦0.7, 0.01≦y≦0.7, 0.01≦z≦0.6, 0.75≦m≦1.0, x+y+z=1 and the transition metal element Me is any one or more selected from the group consisting of Mn, Cr, Fe and Co.
Public/Granted literature
- US20150221858A1 PIEZOELECTRIC COMPOSITION AND PIEZOELECTRIC ELEMENT Public/Granted day:2015-08-06
Information query
IPC分类: