Liquid discharge apparatus and piezoelectric actuator

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United States of America Patent

PATENT NO 9126407
APP PUB NO 20150239247A1
SERIAL NO

14623828

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A liquid discharge apparatus includes: a flow passage structure; and a piezoelectric actuator which is joined to the flow passage structure, the piezoelectric actuator including: a first piezoelectric layer; a second piezoelectric layer; a plurality of first electrodes which are arranged on an upper surface of the first piezoelectric layer; a second electrode which is arranged between the first piezoelectric layer and the second piezoelectric layer; a first conductive pattern which is arranged in an area disposed on an outer side of the plurality of first electrodes on the upper surface of the first piezoelectric layer; a conducting portion which is arranged in a through-hole penetrating through the first piezoelectric layer, the through-hole being formed in the first conductive pattern; and a second conductive pattern which is arranged between the through-hole and the plurality of first electrodes on the upper surface of the first piezoelectric layer.

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Patent Owner(s)

  • BROTHER KOGYO KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kato, Yasuo Aichi-ken, JP 169 1119

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