Piezoelectric/electrostrictive element and method of...

Details Piezoelectric/electrostrictive element and method of... Piezoelectric/electrostrictive element and method of...

2009-02-09

2011-10-25

Tugbang, A. Dexter (Department: 3729)

Metal working

Piezoelectric device making

C310S311000, C310S316010, C310S317000

Reexamination Certificate

active

08042239

ABSTRACT:
A piezoelectric/electrostrictive element with improved moisture resistance while having less degradation in its piezoelectric/electrostrictive properties and a method of manufacturing such a piezoelectric/electrostrictive element are provided. A laminated vibrator of a piezoelectric/electrostrictive element has a structure in which an electrode film, a piezoelectric/electrostrictive film, another electrode film, another piezoelectric/electrostrictive film, and another electrode film are laminated one above the other. In the manufacture of the piezoelectric/electrostrictive element, the laminated vibrator and a counter electrode are immersed in an electrodeposition coating fluid containing a coating component so that the electrodeposition coating fluid is brought into contact with the surfaces of the laminated vibrator and the counter electrode. Thereafter, voltage is applied between an internal electrode film and the counter electrode to induce electrophoresis of the coating component toward a surface-exposed defect, whereby the coating material is selectively electrodeposited on the surface-exposed defect.

REFERENCES:
patent: 6089701 (2000-07-01), Hashizume et al.
patent: RE39474 (2007-01-01), Hashizume et al.
patent: 2006/0197407 (2006-09-01), Vile et al.
patent: 3552013 (2004-08-01), None
patent: 2007-17989 (2007-07-01), None

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