Patent ID: 7262545
Filing Date: 2007-08-28
Classification: B41J,F04B,G02B,H01L,Y10T

Abstract:
1. A cell driving type piezoelectric/electrostrictive actuator comprising: at least one cell defined by two side walls, a substrate and a ceiling wall; said two side walls being disposed on the substrate, and being covered by the ceiling wall, at least the two side walls being composed of piezoelectric/electrostrictive devices; said piezoelectric/electrostrictive devices being capable of changing a volume of said at least one cell with causing displacement in walls of the cell, wherein each of piezoelectric/electrostrictive devices comprises a plurality of layered piezoelectric/electrostrictive bodies and electrode layers which are alternately stacked, and end portions of all of the electrodes are embedded in the piezoelectric/electrostrictive bodies at an internal side of the cell.