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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 12137614 B1

PDFFull Text
Date of Patent:
Nov. 05, 2024

Filed:

Feb. 10, 2020

Piezoelectric composition, piezoelectric element, piezoelectric device, piezoelectric transformer, ultrasonic motor, ultrasonic wave-generating element, and filter element

Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Hiroki Katoh, Tokyo, JP;

Yumi Akiyama, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

C Melissa Koslow

Int. Cl.
CPC ...
H10N 30/853 (2023.01); C04B 35/495 (2006.01); H02N 2/10 (2006.01); H03H 9/56 (2006.01); H10N 30/40 (2023.01); H10N 30/50 (2023.01);
U.S. Cl.
CPC ...
H10N 30/8542 (2023.02); C04B 35/495 (2013.01); H02N 2/103 (2013.01); H03H 9/562 (2013.01); H10N 30/40 (2023.02); H10N 30/50 (2023.02); C04B 2235/3201 (2013.01); C04B 2235/3239 (2013.01); C04B 2235/3255 (2013.01); C04B 2235/3281 (2013.01);
Abstract

A piezoelectric composition containing: at least one or more elements selected from alkali metal elements; at least one or more elements selected from a group consisting of vanadium, niobium, and tantalum; copper or copper and germanium; and oxygen. The piezoelectric composition has a main phase, and a high Cu-concentration phase in which a content ratio of copper is higher than the main phase, and when a content ratio of oxygen in the high Cu-concentration phase is set as O, and a content ratio of copper is set as Cu, Oand Cusatisfy relationships of 51≤O≤60 and 2.0≤Cu≤15.

Find Patent Forward Citations

Katoh, Hiroki. (2024). Piezoelectric composition, piezoelectric element, piezoelectric device, piezoelectric transformer, ultrasonic motor, ultrasonic wave-generating element, and filter element (U.S. Patent No. 12137614). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12137614

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

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