Piezoelectric material, piezoelectric element, and electronic device

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United States of America Patent

PATENT NO 9722170
APP PUB NO 20150015121A1
SERIAL NO

14328466

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Abstract

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There is provided a piezoelectric material not containing any lead component, having stable piezoelectric characteristics in an operating temperature range, a high mechanical quality factor, and satisfactory piezoelectric characteristics. The piezoelectric material includes a main component containing a perovskite-type metal oxide that can be expressed using the following general formula (1), and subcomponents containing Mn, Li, and Bi. When the metal oxide is 100 parts by weight, the content of Mn on a metal basis is not less than 0.04 parts by weight and is not greater than 0.36 parts by weight, content α of Li on a metal basis is not less than 0.0013 parts by weight and is not greater than 0.0280 parts by weight, and content β of Bi on a metal basis is not less than 0.042 parts by weight and is not greater than 0.850 parts by weight

description='In-line Formulae' end='lead'(Ba1-xCax)a(Ti1-y-zZrySnz)O3  (1)description='In-line Formulae' end='tail'

(in the formula (1), 0.09≦x≦0.30, 0.074

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHATOKYO JAPAN DAEJEON 3 MEATBALLS 30 2 TOKYO TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furuta, Tatsuo Machida, JP 101 448
Murakami, Shunsuke Kawasaki, JP 76 327
Tanaka, Hidenori Yokohama, JP 119 556
Watanabe, Takayuki Yokohama, JP 316 3383
Yabuta, Hisato Machida, JP 64 18000

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