Piezoelectric composition and piezoelectric element
US9437807B2 · kind B2 · utility
1Cited by
1References
2Claims
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Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Mar 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/704
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention aims to provide a piezoelectric composition and a piezoelectric element containing the piezoelectric composition. In the piezoelectric composition, the main component contains a substance represented by the following formula with a perovskite structure,(Bi(0.5x+y+z)Na0.5x)m(Ti(x+0.5y)Mg0.5yAlkzCo(1−k)z)O3 0.15≦x≦0.7, 0.28≦y≦0.75, 0.02≦z≦0.30, 0.17≦k≦0.83, 0.75≦m≦1.0, and x+y+z=1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.