PIEZOELECTRIC ACTUATOR AND DRIVE DEVICE

WIPO Patent Application WO/2011/145453

A1

Disclosed is a piezoelectric actuator for which discrimination of orientation is easy, and which is capable of easily measuring electrical properties. The piezoelectric actuator (20) is provided with a piezoelectric substrate (21), first and second electrodes (22 and 23), and a conductive film (24). The first and the second electrodes (22 and 23) apply voltage to the piezoelectric substrate (21). The conductive film (24) is formed upon the first electrode (22). The conductive film (24) comprises a metal or alloy of different color tone than the second electrode (23).

NAKAMURA, Kimitoshi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
中村　仁宗 (〒55 京都府長岡京市東神足１丁目１０番１号　株式会社村田製作所内 Kyoto, 〒6178555, JP)
NAKATANI, Hiroshi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
中谷　宏 (〒55 京都府長岡京市東神足１丁目１０番１号　株式会社村田製作所内 Kyoto, 〒6178555, JP)

JP2011/060427

November 24, 2011

April 28, 2011

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MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
株式会社村田製作所 (〒55 京都府長岡京市東神足１丁目１０番１号 Kyoto, 〒6178555, JP)
NAKAMURA, Kimitoshi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
中村　仁宗 (〒55 京都府長岡京市東神足１丁目１０番１号　株式会社村田製作所内 Kyoto, 〒6178555, JP)
NAKATANI, Hiroshi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)

G11B21/21; G11B21/10; H01L41/09; H01L41/18; H01L41/187; H01L41/193

MIYAZAKI & METSUGI (Chuo Odori FN Bldg, 3-8 Tokiwamachi 1-chome, Chuo-ku, Osaka-sh, Osaka 28, 〒5400028, JP)

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