Invention Grant
- Patent Title: Piezoelectric ceramic and piezoelectric element employing it
- Patent Title (中): 采用压电陶瓷和压电元件
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Application No.: US12405768Application Date: 2009-03-17
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Publication No.: US07973456B2Publication Date: 2011-07-05
- Inventor: Daisuke Tanaka , Masahito Furukawa
- Applicant: Daisuke Tanaka , Masahito Furukawa
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Drinker Biddle & Reath LLP
- Priority: JPP2008-071898 20080319
- Main IPC: H01L41/187
- IPC: H01L41/187
Abstract:
The piezoelectric element 20 of the invention comprises a pair of electrodes 2,3 and a piezoelectric ceramic 1 comprising as the major component a solid solution of the two components KNbO3 and BaTiO3. In the solid solution, the molar ratio of KNbO3 is 0.5-0.9 with respect to the total of the two components.
Public/Granted literature
- US20090236943A1 PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC ELEMENT EMPLOYING IT Public/Granted day:2009-09-24
Information query
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