Piezoelectric vibrating pieces, frames, and devices

Details Piezoelectric vibrating pieces, frames, and devices Piezoelectric vibrating pieces, frames, and devices

2011-03-15

2011-03-15

Budd, Mark (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07906890

ABSTRACT:
Piezoelectric vibrating pieces are disclosed that have a base and a pair of vibrating arms extending from one end of the base in a designated direction. A respective groove is defined in each of the upper and lower surfaces of each vibrating arm. The grooves extend in the designated direction and have a first width. Each groove includes a respective rib feature having a second width that is narrower than the first width. A piezoelectric frame includes the piezoelectric device and an outer frame surrounding the device. A piezoelectric device includes the piezoelectric vibrating piece or piezoelectric frame, a lid, and a base.

REFERENCES:
patent: 6898832 (2005-05-01), Kawashima
patent: 7015630 (2006-03-01), Tanaya
patent: 7342352 (2008-03-01), Kawashima
patent: 7521846 (2009-04-01), Tanaya
patent: 7675224 (2010-03-01), Tanaya
patent: 7714484 (2010-05-01), Hara et al.
patent: 7723904 (2010-05-01), Kawashima
patent: 2005-341251 (2005-12-01), None
patent: 2006-033065 (2006-02-01), None
patent: 2007-060159 (2007-03-01), None

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