Piezoelectric film, production method thereof, piezoelectric element, and liquid discharge apparatus

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United States of America Patent

PATENT NO 10011111
SERIAL NO

15439564

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Abstract

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A piezoelectric film of the present invention is a piezoelectric film including a perovskite oxide represented by the following formula (P), in which crystal phases of the perovskite oxide include tetragonal crystals and rhombohedral crystals at a ratio that satisfies the following formula (1).

description='In-line Formulae' end='lead'A1+δ[(ZrxTi1−x)1−aNba]Oy  (P)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'0.70≤rhombohedral crystals/(rhombohedral crystals+tetragonal crystals)≤0.95   (1),description='In-line Formulae' end='tail'

    where, in the formula (P), A is an A-site element primarily containing Pb, and Zr, Ti, and Nb are B-site elements. x is equal to or higher than 0.4 and lower than 1, excluding x of equal to or higher than 0.51 and equal to or lower than 0.53. a is equal to or higher than 0.08.

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Patent Owner(s)

  • FUJIFILM CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arakawa, Takami Kanagawa-ken, JP 36 152
Fujii, Takamichi Kanagawa-ken, JP 87 659
Murakami, Naoki Kanagawa-ken, JP 34 209

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