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:
Nov. 04, 2025

Filed:

Feb. 12, 2024
Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo, JP;

Inventors:

Yuta Oshima, Nagaokakyo, JP;

Shinya Isota, Nagaokakyo, JP;

Sho Watanabe, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/12 (2006.01); H01G 4/012 (2006.01); H01G 4/232 (2006.01); H01G 4/30 (2006.01);
U.S. Cl.
CPC ...
H01G 4/1227 (2013.01); H01G 4/012 (2013.01); H01G 4/30 (2013.01); H01G 4/2325 (2013.01);
Abstract

A multilayer ceramic capacitor includes an element body portion and a pair of outer electrodes on first and second end surfaces and connected to inner electrode layers. The element body portion includes first and second side margin portions, and first and second outer layer portions, and an inner layer portion. A dielectric includes dielectric particles including barium and titanium, and, as sub-components, rare earth elements, and one or more first additional elements. In a cross section crossing a center in a length direction, dielectric layers included in an inner layer portion include core-shell particles and uniform solid solution particles. A ratio of average areas occupied by the core-shell particles and the uniform solid solution particles is about 0.8 to about 1.5, and a coefficient of variation of a first additional element concentration in the uniform solid solution particles is equal to or less than about 20%.


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