Piezoelectric ceramic laminate device
US5300852A · kind A · utility
14Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Oct 2, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/348
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A piezoelectric ceramic laminate device constituted by a plurality of piezoelectric ceramic sheets, wherein the concentration of at least one metal component constituting the piezoelectric ceramic sheets changes substantially along a sinusoidal curve in the laminating direction thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.