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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10593862 B1

PDFFull Text
Date of Patent:
Mar. 17, 2020

Filed:

Dec. 11, 2014

Piezoelectric material, piezoelectric element, and electronic apparatus

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Makoto Kubota, Yokohama, JP;

Hisato Yabuta, Machida, JP;

Shunsuke Murakami, Sheffield, GB;

Kaoru Miura, Matsudo, JP;

Kanako Oshima, Tokyo, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Canon U.S.A. Inc., IP Division

Primary Examiner:

Matthew E Hoban

Assistant Examiner:

Lynne Edmondson

Int. Cl.
CPC ...
H01L 41/187 (2006.01); H01L 41/18 (2006.01); C04B 35/468 (2006.01); H01L 41/083 (2006.01); H02N 2/16 (2006.01); C04B 35/49 (2006.01); H01L 41/09 (2006.01); B41J 2/14 (2006.01); B08B 7/02 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
H01L 41/1871 (2013.01); B08B 7/02 (2013.01); B41J 2/14233 (2013.01); B41J 2/14274 (2013.01); C04B 35/4682 (2013.01); C04B 35/49 (2013.01); G02B 27/0006 (2013.01); H01L 41/083 (2013.01); H01L 41/09 (2013.01); H01L 41/0973 (2013.01); H02N 2/163 (2013.01); B41J 2202/03 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3236 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3248 (2013.01); C04B 2235/3249 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3293 (2013.01); C04B 2235/3298 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/652 (2013.01); C04B 2235/6584 (2013.01); C04B 2235/663 (2013.01); C04B 2235/765 (2013.01); C04B 2235/768 (2013.01); C04B 2235/77 (2013.01); C04B 2235/785 (2013.01); C04B 2235/786 (2013.01); C04B 2235/81 (2013.01);
Abstract

The present invention provides a lead-free piezoelectric material having a high piezoelectric constant over a wide operating temperature region. Therefore, the present invention relates to a piezoelectric material including a perovskite-type metal oxide represented by general formula (1) below as a main component, wherein the average valence, of Sn contained in the general formula (1) lies between 2 and 4.(BaCaSnTiZr)O(where 0.620≤≤0.970,0.010≤≤0.200,0.030≤≤0.230,0.865≤≤0.990,0≤≤0.085, and 1.986≤≤2.100)  General Formula (1)

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