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:
Feb. 18, 2025
Filed:
Mar. 16, 2021
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Masakazu Hirose, Tokyo, JP;
Yuiko Hirose, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 41/083 (2006.01); H01L 41/047 (2006.01); H01L 41/187 (2006.01); H01L 41/297 (2013.01); H01L 41/43 (2013.01); H10N 30/067 (2023.01); H10N 30/097 (2023.01); H10N 30/50 (2023.01); H10N 30/853 (2023.01); H10N 30/87 (2023.01);
U.S. Cl.
CPC ...
H10N 30/50 (2023.02); H10N 30/067 (2023.02); H10N 30/097 (2023.02); H10N 30/8542 (2023.02); H10N 30/87 (2023.02);
Abstract
A piezoelectric composition according to the present invention comprising: a carbon, and a main component composed of an alkali metal niobate based compound. The amount of carbon contained is 350 to 700 ppm by weight.