Piezoelectric material, piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generator
US9190601B2 · kind B2 · utility
4Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2014 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Mar 26, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/768
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A piezoelectric material contains a first component that is a rhombohedral crystal that is configured to have a complex oxide with a perovskite structure and Curie temperature Tc1 and a second component that is a crystal other than a rhombohedral crystal that is configured to have a complex oxide with the perovskite structure and Curie temperature Tc2, in which |Tc1−Tc2| is equal to or less than 50° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.