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.:
Date of Patent:
Sep. 17, 2024
Filed:
Mar. 26, 2021
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10N 30/50 (2023.01); H10N 30/045 (2023.01); H10N 30/053 (2023.01); H10N 30/20 (2023.01); H10N 30/40 (2023.01); H10N 30/853 (2023.01); H10N 30/87 (2023.01);
U.S. Cl.
CPC ...
H10N 30/50 (2023.02); H10N 30/045 (2023.02); H10N 30/053 (2023.02); H10N 30/20 (2023.02); H10N 30/40 (2023.02); H10N 30/8542 (2023.02); H10N 30/8554 (2023.02); H10N 30/871 (2023.02); H10N 30/877 (2023.02);
Abstract
Provided is a piezoelectric element according to the invention including a stacked body in which a piezoelectric layer and an internal electrode layer are stacked. In addition, the internal electrode layer contains at least one kind of element selected from palladium, nickel, platinum, gold, and silver, and copper, and the content of copper contained in the internal electrode layer is 1 to 50 at % in terms of a copper element.