Resonator element having a pair of vibrating arms with wide portions and arm portions

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United States of America Patent

PATENT NO 9654083
SERIAL NO

15137419

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A resonator element includes a base portion and a pair of vibrating arms that are provided integrally with the base portion, are aligned in an X-axis direction, and extend in a Y-axis direction from the base portion. Each of the vibrating arms includes an arm portion and a wide hammerhead that is located on the free end side of the arm portion and has a greater length in the X-axis direction than the arm portion. Assuming that the length of the vibrating arm in the Y-axis direction is L and the length of the hammerhead in the Y-axis direction is H, the relationship of 1.2%1 and the length of the hammerhead in the X-axis direction is W2, the relationship of 1.5≦W2/W1≦10.0 is satisfied.

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamada, Akinori Ina, JP 81 435

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