Piezoelectric speaker device

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United States of America Patent

PATENT NO 9807515
SERIAL NO

14886160

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Abstract

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A piezoelectric speaker device that includes an organic polymer piezoelectric film, at least one pair of electrodes provided in contact with the piezoelectric film and the at least one pair of electrodes including a user-side electrode on a first side of the piezoelectric film, an insulation layer on the user-side electrode, a flaw detection electrode line on the insulation layer, and a detection circuit configured to detect whether the flaw detection electrode line is in a normal electric conduction state.

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Patent Owner(s)

  • MURATA MANUFACTURING CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ando, Masamichi Nagaokakyo, JP 91 721

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