Resonator element, resonator, electronic device, electronic apparatus, and mobile object

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United States of America Patent

PATENT NO 9013243
APP PUB NO 20130257554A1
SERIAL NO

13849896

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Abstract

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A resonator element includes a substrate vibrating in a thickness-shear vibration mode, a first excitation electrode disposed on one principal surface of the substrate, and has a shape obtained by cutting out four corners of a quadrangle, and a second excitation electrode disposed on the other principal surface of the substrate, and a ratio (S2/S1) between the area S1 of the quadrangle and the area S2 of the first excitation electrode fulfills 87.7%≦(S2/S1)<95.0%.

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishii, Osamu Tatsuno, JP 56 677
Morita, Takao Fujisawa, JP 35 841

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