Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2010-11-24
2011-12-27
Dougherty, Thomas (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S367000, C310S348000
Reexamination Certificate
active
08084926
ABSTRACT:
An AT cut quartz crystal resonator element includes a quartz crystal element piece having an exciting part formed from an AT cut quartz crystal plate in a rectangular shape having an X-axis direction of a quartz crystal set to a long side, and an exciting electrode formed on each of front and back main surfaces of the exciting part, in which each side surface in the longitudinal direction of the exciting part is composed of two faces, an m-face of a quartz crystal and a crystal face other than the m-face.
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Aoshima Yoshiyuki
Komine Kenji
Naito Matsutaro
Addison Karen B
Dougherty Thomas
Oliff & Berridg,e PLC
Seiko Epson Corporation
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