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:
Feb. 05, 2019

Filed:

Mar. 10, 2017
Applicant:

Taiyo Yuden Co., Ltd., Taito-ku, Tokyo, JP;

Inventors:

Yoshiki Iwazaki, Takasaki, JP;

Katsuya Taniguchi, Takasaki, JP;

Minoru Ryu, Takasaki, JP;

Koichiro Morita, Takasaki, JP;

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

A multilayer ceramic capacitor includes: a pair of external electrodes; a first internal electrode that is coupled to one of the pair of external electrodes; a dielectric layer that is stacked on the first internal electrode and contains BaTiOand Ni; and a second internal electrode that is stacked on the dielectric layer, contains Ni, and is coupled to another one of the pair of external electrodes, wherein Ni is contained in five regions, which are equally divided region of a region between locations 50 nm away from the first and second internal electrodes in a stacking direction between the first and second internal electrodes, and a Ni concentration in at least one of end regions located closest to the first internal electrode and the second internal electrode among the five regions is greater than a Ni concentration in a central region of the five regions by 10% or more.


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