Piezoelectric ceramic composition
US6117354A · kind A · utility
8Cited by
0References
4Claims
0Family size
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Key dates
| Filing date | May 14, 1999 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | May 14, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/495
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A piezoelectric ceramic composition which contains a ceramic compound and manganese. The ceramic compound serves as a primary component and is represented by formula (Sr.sub.1-x M.sub.x)Bi.sub.2 Nb.sub.2 O.sub.9. In the formula, M represents a divalent metal element and x satisfies 0.ltoreq.x.ltoreq.0.3. Manganese is contained in an amount of 1.0 wt. % or less (0 being excluded) as MnCO.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.