Piezoelectric device, liquid ejecting head, liquid ejecting apparatus, and method for producing piezoelectric device
US11673392B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jul 30, 2021 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Jul 30, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14491
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A piezoelectric device includes a diaphragm, a piezoelectric actuator, and an orientation layer between the diaphragm and the piezoelectric layer. The piezoelectric actuator has a first electrode, a piezoelectric layer, and a second electrode, with the first electrode, a piezoelectric layer, and a second electrode on the diaphragm. The orientation layer is a stack of two or more tiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.