Metal working – Method of mechanical manufacture – Fluid pattern dispersing device making – e.g. – ink jet
Reexamination Certificate
2007-11-06
2007-11-06
Arbes, Carl J. (Department: 3729)
Metal working
Method of mechanical manufacture
Fluid pattern dispersing device making, e.g., ink jet
C029S025350, C029S831000, C029S832000, C029S846000, C029S847000, C029S877000, C347S068000, C216S027000
Reexamination Certificate
active
11104887
ABSTRACT:
A circuit provides energy to a plurality of piezoelectric diaphragm structures formed in a two-dimensional array. Each piezoelectric diaphragm structure includes a piezoelectric element in operational contact with at least a first side electrode and a second side electrode. A switching system includes a first connection for a first power source, for application of power to the first side electrode and a second connection for a second power source, for application of power to the second side electrode. In a first state, power appropriate for performing a poling operation of the piezoelectric material is available for application to the first electrode, and the second electrode, and in a second state, power appropriate to activate the piezoelectric material to cause operational movement of the poled piezoelectric diaphragm structure is available for application to the first electrode and the second electrode.
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Buhler Steven A.
Fitch John S.
Lean Meng H.
Littau Karl A.
Arbes Carl J.
Fay Sharpe LLP
Nguyen Tai Van
Palo Alto Research Center Incorporated
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