Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2011-06-28
2011-06-28
SanMartin, J. (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S364000, C310S365000, C310S366000
Reexamination Certificate
active
07969066
ABSTRACT:
In a multilayer piezoelectric actuator, external electrodes are formed on external surfaces of a multilayer piezoelectric body in which a plurality of internal electrodes and a plurality of piezoelectric layers are stacked on top of one another. Each of the external electrodes includes a base electrode and a stress-absorbing external-electrode member formed on the base electrode. The stress-absorbing external-electrode member is provided with an elastically deformable elastic structure, and a planar portion, which is continuous with the elastic structure and has at least an area sufficient for bonding a feeder terminal such as a lead line thereto.
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PCT/JP2009/001480 Written Opinion dated Apr. 17, 2009.
Hayashi Koichi
Kasai Shigeharu
Shindou Satoshi
Dickstein & Shapiro LLP
Murata Manufacturing Co. Ltd.
SanMartin J.
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