Method of manufacturing a piezoelectric element
US8316519B2 · kind B2 · utility
3Cited by
3References
4Claims
0Family size
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Key dates
| Filing date | Dec 9, 2009 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | May 16, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49163
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for manufacturing a piezoelectric element that includes a piezoelectric ceramic body containing an internal electrode. The piezoelectric ceramic body is mainly made of a perovskite complex oxide containing an alkali metal niobate-based compound containing at least one element selected from among K, Li, and Na. The internal electrode is made of a base metal material, such as Ni or Cu. The piezoelectric element is produced by co-sintering the internal electrode and the piezoelectric ceramic body in a reducing atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.