Piezoelectric material, piezoelectric element, and electronic apparatus

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United States of America Patent

PATENT NO 9722171
APP PUB NO 20150053884A1
SERIAL NO

14385128

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Abstract

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The present invention provides a lead-free piezoelectric material having a high piezoelectric constant and a high mechanical quality factor in a wide operating temperature range. The piezoelectric material includes a perovskite-type metal oxide represented by Formula (1):

description='In-line Formulae' end='lead'(Ba1-xCax)a(Ti1-yZry)O3 (1.00≦a≦1.01, 0.125≦x<0.155, and 0.041≦y≦0.074)description='In-line Formulae' end='tail'

as a main component. The metal oxide contains Mn in a content of 0.12 parts by weight or more and 0.40 parts by weight or less based on 100 parts by weight of the metal oxide on a metal basis.

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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
Akashi, Kenichi Kawasaki, JP 8 23
Furuta, Tatsuo Machida, JP 101 448
Hayashi, Jumpei Yokohama, JP 65 394
Koyama, Shinya Tokyo, JP 48 237
Kubota, Makoto Yokohama, JP 219 2960
Matsuda, Takanori Chofu, JP 98 805
Saito, Hiroshi Kawasaki, JP 488 5951
Shimizu, Yasushi Fujisawa, JP 140 1901
Uebayashi, Akira Tokyo, JP 31 67

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