Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2011-08-23
2011-08-23
Benson, Walter (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C331S156000, C073S504020
Reexamination Certificate
active
08004165
ABSTRACT:
A tuning fork oscillating piece includes: a base; a pair of oscillating arms extending from the base in directions substantially parallel with each other; a drive piezoelectric element provided at least on one main surface or side surface of each of the oscillating arms to allow bending oscillation of the oscillating arms by piezoelectric distortion caused by applied charge; a detection piezoelectric element provided on the surface opposed to the surface of each of the oscillating arms on which the drive piezoelectric element is provided to convert the piezoelectric distortion caused by the bending oscillation of the oscillating arms into charge and output the charge. The drive piezoelectric element has a drive piezoelectric section. The detection piezoelectric element has a detection piezoelectric section. The absolute value of the piezoelectric d constant of the drive piezoelectric section is larger than the absolute value of the piezoelectric d constant of the detection piezoelectric section. The absolute value of the piezoelectric g constant of the detection piezoelectric section is larger than the absolute value of the piezoelectric g constant of the drive piezoelectric section.
REFERENCES:
patent: 5635642 (1997-06-01), Nonomura et al.
patent: 5824900 (1998-10-01), Konno et al.
patent: 6288474 (2001-09-01), Ono et al.
patent: 6327908 (2001-12-01), Yachi et al.
patent: 6484576 (2002-11-01), Yachi et al.
patent: 7053534 (2006-05-01), Tomikawa et al.
patent: 2003/0058226 (2003-03-01), Bertram et al.
patent: 2006/0090565 (2006-05-01), Ohuchi et al.
patent: 2003-227719 (2003-08-01), None
patent: 2006-346981 (2006-12-01), None
patent: 2007-267109 (2007-10-01), None
patent: 2007-285879 (2007-11-01), None
Furuhata Makoto
Higuchi Takamitsu
Oshio Masahiro
Benson Walter
Gordon Bryan P
Kilpatrick Townsend & Stockton LLP
Seiko Epson Corporation
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