Piezoelectric resonator element and piezoelectric device
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United States of America Patent
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Issued Date -
Aug 16, 2007
app pub date -
Jan 25, 2007
filing date -
Jan 27, 2006
priority date (Note) -
Abandoned
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Abstract
A tuning fork-type piezoelectric resonator element includes a base section made of a piezoelectric material, and at least a pair of resonating arms formed integrally with the base section that extend parallel to each other from the base section. Based on a displacement vortex generated by flexural vibration of the pair of resonating arms near the base end of each resonating arm of the base section and on a virtual center line that passes through a center width of each resonating arm, a groove or slit is provided along a line tangent to a periphery of the displacement vortex.
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