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:
Jul. 09, 2024
Filed:
Jan. 26, 2022
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Yasuhiro Matsumoto, Takasaki, JP;
Koichiro Morita, Takasaki, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/10 (2006.01); H01G 4/008 (2006.01); H01G 4/30 (2006.01);
U.S. Cl.
CPC ...
H01G 4/10 (2013.01); H01G 4/008 (2013.01); H01G 4/30 (2013.01);
Abstract
A ceramic electronic device includes a multilayer structure in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked. A main component of the plurality of dielectric layers is a ceramic having a perovskite structure of which an A site includes at least Ba and of which an A/B ratio is 0.980 or less. The plurality of internal electrode layers include a co-material. A total amount of Ti, Zr and Hf is 90 mol % or more in metal elements included in the co-material and an amount of Ba is 10 mol % or less in the metal elements.