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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 11837975 B1

PDFFull Text
Date of Patent:
Dec. 05, 2023

Filed:

Jan. 29, 2020

Piezoelectric material, piezoelectric element, and electronic equipment

Applicants:

Canon Kabushiki Kaisha, Tokyo, JP;

Fuji Chemical Co., Ltd., Osaka, JP;

Inventors:

Makoto Kubota, Yokohama, JP;

Kanako Oshima, Tokyo, JP;

Hisato Yabuta, Machida, JP;

Takanori Matsuda, Chofu, JP;

Miki Ueda, Tokyo, JP;

Fumio Uchida, Daito, JP;

Hiroki Imai, Nakatsugawa, JP;

Kenji Maeda, Hirakata, JP;

Chiemi Shimizu, Hirakata, JP;

Assignee:

CANON KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

Venable LLP

Primary Examiner:

Erica S Lin

Int. Cl.
CPC ...
H02N 2/10 (2006.01); B41J 2/14 (2006.01); C04B 35/495 (2006.01); C04B 35/626 (2006.01); C04B 35/634 (2006.01); C04B 35/64 (2006.01); H04N 23/52 (2023.01); H10N 30/50 (2023.01); H10N 30/053 (2023.01); H10N 30/87 (2023.01); H10N 30/20 (2023.01); H10N 30/853 (2023.01);
U.S. Cl.
CPC ...
H02N 2/103 (2013.01); B41J 2/14233 (2013.01); C04B 35/495 (2013.01); C04B 35/62695 (2013.01); C04B 35/63416 (2013.01); C04B 35/64 (2013.01); H04N 23/52 (2023.01); H10N 30/053 (2023.02); H10N 30/2047 (2023.02); H10N 30/50 (2023.02); H10N 30/8536 (2023.02); H10N 30/8542 (2023.02); H10N 30/871 (2023.02); C04B 2235/3234 (2013.01); C04B 2235/3255 (2013.01); C04B 2235/3263 (2013.01); C04B 2235/6021 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/768 (2013.01);
Abstract

A piezoelectric material includes: an oxide containing Na, Ba, Nb, Ti, and Mn, in which the oxide has a perovskite-type structure, a total amount of metal elements other than Na, Ba, Nb, Ti, and Mn contained in the piezoelectric material is 0.5 mol % or less with respect to a total amount of Na, Ba, Nb, Ti, and Mn, a molar ratio x of Ti to a total molar amount of Nb and Ti is 0.05≤x≤0.12, a molar ratio y of Na to Nb is 0.93≤y≤0.98, a molar ratio z of Ba to Ti is 1.09≤z≤1.60, a molar ratio m of Mn to the total molar amount of Nb and Ti is 0.0006≤m≤0.0030, and 1.07≤y×z≤1.50 is satisfied.

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