logo

For the Inventor, By the Inventor

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 10868232 B1

PDFFull Text
Date of Patent:
Dec. 15, 2020

Filed:

Feb. 13, 2018

Piezoelectric material, manufacturing method for piezoelectric material, piezoelectric element, vibration wave motor, optical equipment, and electronic device

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Hiroshi Saito, Kawasaki, JP;

Akira Uebayashi, Tokyo, JP;

Tomohiro Watanabe, Yokohama, JP;

Yuto Niinuma, Yokohama, JP;

Yasushi Shimizu, Fujisawa, JP;

Toshihiko Akatsuka, Yuki, JP;

Assignee:

CANON KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

Venable LLP

Primary Examiner:

Thomas M Dougherty

Int. Cl.
CPC ...
H01L 41/187 (2006.01); H01L 41/083 (2006.01); H01L 41/43 (2013.01); H02N 2/00 (2006.01); H01L 41/04 (2006.01); H01L 41/297 (2013.01); H01L 41/257 (2013.01); H02N 2/16 (2006.01);
U.S. Cl.
CPC ...
H01L 41/1871 (2013.01); H01L 41/04 (2013.01); H01L 41/083 (2013.01); H01L 41/257 (2013.01); H01L 41/297 (2013.01); H01L 41/43 (2013.01); H02N 2/001 (2013.01); H02N 2/163 (2013.01);
Abstract

A piezoelectric material includes a metal oxide containing at least Ba, Ca, Ti, Zr, and Mn, in which the piezoelectric material has a perovskite structure, in which: x, which represents a ratio of a content (mol) of Ca to A (mol) representing a total content of Ba and Ca, falls within a range of 0.10≤x≤0.18; y, which represents a ratio of a content (mol) of Zr to B (mol) representing a total content of Ti, Zr, and Mn, falls within a range of 0.055≤y≤0.085; and z, which represents a ratio of a content (mol) of Mn to the B (mol), falls within a range of 0.003≤z≤0.012, and in which the piezoelectric material satisfies a relationship of 0≤(|d−d|)/|d|≤0.08, and has a value of 130 pm/V or more for each of |d| and |d|.

Find Patent Forward Citations

Saito, Hiroshi. (2020). Piezoelectric material, manufacturing method for piezoelectric material, piezoelectric element, vibration wave motor, optical equipment, and electronic device (U.S. Patent No. 10868232). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10868232

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…