Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2011-07-19
2011-07-19
SanMartin, J. (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S363000, C310S364000, C310S365000, C310S366000
Reexamination Certificate
active
07982367
ABSTRACT:
Disclosed is a piezoelectric/electrostrictive element equipped with a piezoelectric/electrostrictive drive unit having a piezoelectric/electrostrictive body, and a film external terminal electrode containing substantially no glass component and being disposed on at least one surface of the piezoelectric/electrostrictive body. The external terminal electrode is an electrode having a laminated structure equipped with a first electrode layer made of a first electrode material being disposed to contact the piezoelectric/electrostrictive body closely and containing a first metal component and a piezoelectric/electrostrictive material, and a second electrode layer made of a second electrode material containing a second metal component and substantially no piezoelectric/electrostrictive material, which the first and second metal components are in the same element system.
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Ito Haruhiko
Uetani Masayuki
Burr & Brown
NGK Insulators Ltd.
SanMartin J.
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