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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 9680085 B1

PDFFull Text
Date of Patent:
Jun. 13, 2017

Filed:

Mar. 04, 2015

Ceramic powder, piezoelectric ceramic, piezoelectric element, and electronic equipment

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Tatsuo Furuta, Machida, JP;

Yasushi Shimizu, Fujisawa, JP;

Hidenori Tanaka, Yokohama, JP;

Akira Uebayashi, Tokyo, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

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

Primary Examiner:

Leszek Kiliman

Int. Cl.
CPC ...
H01L 41/083 (2006.01); B06B 1/06 (2006.01); B41J 2/14 (2006.01); H01L 41/187 (2006.01); H02N 2/00 (2006.01); H01L 41/09 (2006.01); H02N 2/16 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
H01L 41/083 (2013.01); B06B 1/06 (2013.01); B41J 2/14201 (2013.01); B41J 2/14233 (2013.01); H01L 41/0926 (2013.01); H01L 41/0973 (2013.01); H01L 41/1871 (2013.01); H02N 2/001 (2013.01); H02N 2/163 (2013.01); B41J 2202/03 (2013.01); H04N 5/2251 (2013.01); Y10T 428/2982 (2015.01);
Abstract

A ceramic powder contains a metal oxide represented by the following general formula (1). The ceramic powder has a single perovskite-type crystal phase. The ceramic powder is composed of particles having an average equivalent circular diameter in the range of 100 nm or more and less than 1000 nm and has a ratio c/ain the range of 1.000≦c/a≦1.010, wherein cand adenote the c-axis length and a-axis length, respectively, of unit cells of the perovskite-type metal oxide, cbeing greater than or equal to a.formula ()(BaCa)(TiZrMn)O(0.9900≦α≦1.0100, 0.125≦≦0.300, 0.020≦≦0.095, 0.003≦≦0.016).

Find Patent Forward Citations

Furuta, Tatsuo. (2017). Ceramic powder, piezoelectric ceramic, piezoelectric element, and electronic equipment (U.S. Patent No. 9680085). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9680085

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

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