Electrostrictive effect element and the process of manufacturing the same
US5255972A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Jan 30, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/053
Abstract
An internal electrode is printed on one surface of each electrostrictive ceramic green sheet by the screen printing. Two such electrostrictive ceramic green sheets each with an internal electrode layer are laid the electrostrictive ceramic layer of one on the internal electrode layer of the other and rolled together, and then sintered. Subsequently lead wires are soldered to the exposed portions of the corresponding internal electrodes. In virtue of this, small-size, low-voltage driven, highly reliable electrostrictive effect elements can be obtained, and the manufacture of them is very facilitated with the effect of remarkably reducing manufacture cost. In addition the electrostrictive effect element according to the present invention has the capability of radial expansion and contraction about the central axis of the rolled structure and thereby can be applied to new use out of the scope of the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.