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 12014877 B1

Date of Patent:

Jun. 18, 2024

Filed:

Jun. 29, 2020

Ceramic electronic device and manufacturing method of the same

Applicant:

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

Inventor:

Katsuya Taniguchi, Tokyo, JP;

Assignee:

TAIYO YUDEN CO., LTD., Tokyo, JP;

Attorney:

Stein IP, LLC

Primary Examiner:

Arun Ramaswamy

Int. Cl.

CPC ...

H01G 4/30 (2006.01); C04B 35/468 (2006.01); H01G 4/008 (2006.01); H01G 4/012 (2006.01); H01G 4/12 (2006.01);

U.S. Cl.

CPC ...

H01G 4/30 (2013.01); C04B 35/4682 (2013.01); H01G 4/008 (2013.01); H01G 4/012 (2013.01); H01G 4/1218 (2013.01); C04B 2235/6583 (2013.01); C04B 2235/783 (2013.01);

Abstract

A ceramic electronic device includes: a multilayer structure; and a cover layer, wherein a concentration of Mn of the cover layer with respect to a main component ceramic is larger than a concentration of Mn of the dielectric layers with respect to a main component ceramic in a capacity section, wherein an average crystal grain diameter of a first dielectric layer is smaller than that of a second dielectric layer, and a concentration of Mn of the first dielectric layer with respect to the main component ceramic is larger than a concentration of Mn of the second dielectric layer with respect to the main component ceramic, in the capacity section.

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