Laminated piezoelectric/electrostrictive device
US7443080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2006 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jan 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/508
Abstract
There is realized a piezoelectric/electrostrictive device of a laminated type from which a large displacement is obtained and which is highly reliable over a long period. A laminated piezoelectric/electrostrictive device 1 has: a laminated columnar article 10 constituted by alternately laminating a plurality of piezoelectric/electrostrictive layers 14 and inner electrode layers 18, 19; and a pair of outer electrodes 28, 29 disposed on a peripheral surface of the laminated columnar article 10 to connect layers having the same polarity to each other among the inner electrode layers 18, 19. This laminated piezoelectric/electrostrictive device 1 is characterized in that interfaces 2a, 2b having a relatively low interface strength as compared with the other interfaces are disposed at a specific interval among the interfaces between layers of the laminated columnar article 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.