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.

Date of Patent:
Apr. 21, 2025

Filed:

Nov. 05, 2023
Applicant:

Taiyo Yuden Co., Ltd., Tokyo, JP;

Inventor:

Yoichi Kato, Takasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/12 (2005.12); C04B 35/64 (2005.12); H01G 4/008 (2005.12); H01G 4/012 (2005.12); H01G 4/30 (2005.12);
U.S. Cl.
CPC ...
H01G 4/1218 (2012.12); C04B 35/64 (2012.12); H01G 4/008 (2012.12); H01G 4/012 (2012.12); H01G 4/30 (2012.12);
Abstract

A ceramic electronic device includes a multilayer chip in which internal electrode layers are alternately stacked with dielectric layers, respectively, and are exposed alternately at a first surface and a second surface of the multilayer chip, wherein, in a capacity section in which the internal electrode layers exposed at the first and second surface overlap each other as viewed in the stacking direction, the dielectric layers are at least three dielectric layers, each dielectric layer including Sn, wherein a dielectric layer having a smaller Sn concentration is closer to an outermost end in the stacking direction than is a dielectric layer having a larger Sn concentration which is located at a center area in the stacking direction, in a relationship of at least two of the at least three dielectric layers in the capacity section.


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