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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 12610746 B1

PDFFull Text
Date of Patent:
Apr. 21, 2026

Filed:

Dec. 08, 2021

Piezoelectric single crystal-polycrystalline ceramic composite, preparation method therefor, and piezoelectric and dielectric application components using same

Applicant:

Ceracomp Co., Ltd., Asan-si, KR;

Inventors:

Ho Yong Lee, Seoul, KR;

Won Sun Baick, Seoul, KR;

Dong Ho Kim, Seoul, KR;

Hyun Jae Joo, Incheon, KR;

Assignee:

CERACOMP CO., LTD., Asan-si, KR;

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Matthew E Hoban

Assistant Examiner:

Lynne undefined Edmondson

Int. Cl.
CPC ...
H10N 30/097 (2023.01); C04B 35/468 (2006.01); C04B 35/488 (2006.01); C04B 35/626 (2006.01); C04B 35/64 (2006.01); H10N 30/092 (2023.01); H10N 30/85 (2023.01); H10N 30/853 (2023.01);
U.S. Cl.
CPC ...
H10N 30/852 (2023.02); C04B 35/488 (2013.01); C04B 35/6261 (2013.01); C04B 35/64 (2013.01); H10N 30/092 (2023.02); C04B 2235/3206 (2013.01); C04B 2235/3249 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/768 (2013.01); C04B 2235/783 (2013.01); C04B 2235/786 (2013.01); C04B 2235/9607 (2013.01);
Abstract

Provided is a piezoelectric single crystal-polycrystal ceramic composite, a method of manufacturing the same, and piezoelectric and dielectric application components using the piezoelectric single crystal-polycrystal ceramic composite. The piezoelectric single crystal-polycrystal ceramic composite shows that complexation is carried out by the optimization of a ratio between grain size distributions of a piezoelectric single crystal and polycrystal ceramic grains, and a volume ratio of the contained piezoelectric single crystal so that mass production simultaneously with excellent piezoelectric characteristics of the piezoelectric single crystal can be realized, and the cost of production can be reduced, so the piezoelectric single crystal-polycrystal ceramic composite can be applied to piezoelectric and dielectric application components, like ultrasonic transducers, piezoelectric actuators, piezoelectric sensors, dielectric capacitors, electric field-generating transducers, and electric field and vibration-generating transducers, using the piezoelectric single crystal-polycrystal ceramic composite, and the piezoelectric single crystal-polycrystal ceramic composite can enhance piezoelectric characteristics and competitiveness in prices.

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