Metal working – Piezoelectric device making
Reexamination Certificate
2011-01-04
2011-01-04
Banks, Derris H (Department: 3729)
Metal working
Piezoelectric device making
C310S361000, C310S360000, C310S348000, C430S316000
Reexamination Certificate
active
07861389
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
Banks Derris H
Carley Jeffrey
Epson Toyocom Corporation
Oliff & Berridg,e PLC
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