Piezoeletric material, piezoelectric element, liquid discharge head, liquid discharge apparatus, vibration wave motor, optical instrument, vibration apparatus, dust removing apparatus, imaging apparatus and electronic device

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United States of America Patent

PATENT NO 10727395
APP PUB NO 20170373244A1
SERIAL NO

15625209

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Abstract

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A piezoelectric material including a perovskite-type metal oxide represented by the following general formula (1); Bi; and Mn, wherein the content of Bi is 0.1-0.5 mol % with respect to 1 mol of the metal oxide, the content of Mn is 0.3-1.5 mol % with respect to 1 mol of the metal oxide, and the piezoelectric material satisfies (L4−L5)/L5≥0.05 and (L8−L9)/L9≥0.05 when the lengths of twelve Bi—O bonds with Bi that is located at a 12-fold site with respect to O in a perovskite-type unit cell as a starting point are taken to be L1 to L12 in length order:

description='In-line Formulae' end='lead'(Ba1-xM1x)(Ti1-yM2y)O3  (1)description='In-line Formulae' end='tail'

wherein 0≤x≤0.2, 0≤y≤0.1, and M1 and M2 are mutually different metal elements which have a total valence of +6 and are selected from other elements than Ba, Ti, Bi and Mn.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furuta, Tatsuo Machida, JP 101 410
Ifuku, Toshihiro Yokohama, JP 69 622
Kubota, Makoto Yokohama, JP 217 2822
Matsuda, Takanori Chofu, JP 98 775
Tanaka, Hidenori Tokyo, JP 116 520
Watanabe, Takayuki Yokohama, JP 312 3265
Yabuta, Hisato Machida, JP 62 17344

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