Piezoelectric element and method for manufacturing same
US10833244B2 · kind B2 · utility
1Cited by
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5Claims
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Key dates
| Filing date | Feb 2, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Apr 16, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14419
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A piezoelectric element having a vibrating section including a vibrating plate, a first electrode, a piezoelectric layer, and a second electrode, in which a crystal orientation of a piezoelectric material forming the piezoelectric layer is (100) and a crystal structure of the piezoelectric material is a tetragonal crystal, and a total thickness T1 of the vibrating plate and the first electrode and a total thickness T2 of the piezoelectric layer and the second electrode have a relationship of T1≥T2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.