Piezoelectric device, dust removing apparatus, and imaging apparatus

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United States of America Patent

PATENT NO 9095882
APP PUB NO 20130100531A1
SERIAL NO

13655804

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Abstract

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A piezoelectric device includes an elastic member, an electrical-mechanical energy conversion element fixed to the elastic member, configured to cause the elastic member to generate vibration, and a supporting member that supports the elastic member. The electrical-mechanical energy conversion element is formed of a piezoelectric material in which, in a usage temperature range of the piezoelectric device, a piezoelectric constant decreases along with temperature rise. A supporting member that supports the elastic member is formed of a material in which, in the usage temperature range of the piezoelectric device, Q value increases along with temperature rise.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ifuku, Toshihiro Yokohama, JP 69 622
Maruyama, Yutaka Tokyo, JP 81 633
Shimada, Akira Saitama, JP 117 1953

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