Patent ID: 6417600
Filing Date: 2002-07-09
Classification: B41J,Y10T

Abstract:
A piezoelectric vibrator unit comprising:drive piezoelectric vibrators composed of common internal electrodes and discrete internal electrodes laminated with piezoelectric material layers in between; dummy piezoelectric vibrators including at least common internal electrodes and piezoelectric material layers; a fixation base on which one end portions of the drive piezoelectric vibrators and the dummy piezoelectric vibrators are fixed such that the other end portions therefor are to be free ends; and a conductive layer electrically connected to all internal electrodes of the dummy piezoelectric vibrators, including the common internal electrodes, wherein said conductive layer is a common electrode that supplies a common potential to said common internal electrodes of said dummy piezoelectric vibrators, and wherein said one end portions of the drive piezolectric vibrators and the dummy piezoelectric vibrators, which are fixed on the fixation base, are made continuous with each other to form a continuous region in which the common internal electrodes are integrated and the piezoelectric material layers are integrated.