Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2011-07-05
2011-07-05
SanMartin, J. (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
07973458
ABSTRACT:
An exemplary piezoelectric vibrating piece comprises a base formed of a piezoelectric material; and a pair of vibrating arms extending from one end of the base in a designated direction; wherein the vibrating arm comprises an arm portion in which only the inner side slopes as it becomes narrower to the distal end and a hammer-head portion that is formed wider than the arm portion at the distal end of the vibrating arms.
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Klarquist & Sparkman, LLP
Nihon Dempa Kogyo Co. Ltd.
SanMartin J.
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