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:
Aug. 31, 2021

Filed:

Sep. 21, 2018
Applicant:

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

Inventors:

Hiroaki Uenishi, Takasaki, JP;

Takehiko Kamobe, Takasaki, JP;

Tomoaki Nakamura, Takasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/12 (2006.01); H01G 4/005 (2006.01); H01G 4/30 (2006.01); H01G 4/232 (2006.01);
U.S. Cl.
CPC ...
H01G 4/12 (2013.01); H01G 4/005 (2013.01); H01G 4/232 (2013.01); H01G 4/2325 (2013.01); H01G 4/30 (2013.01);
Abstract

A ceramic electronic device includes: a ceramic main body having at least two edge faces facing each other; and external electrodes formed on the two edge faces, wherein: the external electrodes have a structure in which a plated layer is formed on a ground layer having ceramic; a main component of the ground layer is a metal; the external electrodes have an extension region that extends to at least one of four side faces from the two edge faces of the ceramic main body; a part of the extension region corresponding to a corner portion of the ceramic main body has a first portion having a maximum spaced distance of 10 μm or less in a face direction of the ground layer; and the plated layer has an average thickness that is 30% or more with respect to the maximum spaced distance, and covers the first portion.


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