Patent ID: 6803703
Filing Date: 2004-10-12
Classification: B41J,H01L

Abstract:
A piezoelectric actuator, comprising:a vibration plate; a first common electrode, formed on the vibration plate and to be fixed at a predetermined potential, the first common electrode having a first proximal portion and first branch portions extended from the first proximal portion; a first piezoelectric layer, laminated on each of the first branch portions; a drive electrode, laminated on each first piezoelectric layer; a second piezoelectric layer, laminated on each drive electrode; a second common electrode, having a second proximal portion and second branch portions extended from the second proximal portion such that each of the second branch portions is laminated on each second piezoelectric layer and to be fixed at the pedetermined potential; and a conduction member, which electrically connects the first proximal portion and the second proximal portion.