Piezoelectric element, liquid ejecting head, liquid ejecting apparatus, actuator, sensor, and piezoelectric material
US9257634B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2015 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Jun 5, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/03
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A piezoelectric element 300 includes a first electrode 60, a piezoelectric layer 70 which is provided on the first electrode, and a second electrode 80 which is provided on the piezoelectric layer, and the piezoelectric layer is made of a piezoelectric material expressed as a mixed crystal including a first component formed of a complex oxide containing Bi and Fe and having a rhombohedral perovskite structure and a complex oxide containing Ba and Ti and having a tetragonal perovskite structure, a second component formed of a complex oxide containing Bi, K, and Ti and having a tetragonal perovskite structure, and a third component formed of a complex oxide containing Bi, Mg, and Ti and having a rhombohedral perovskite structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.