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. 28, 2018

Filed:

Mar. 22, 2017
Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Dan Sakurai, Tokyo, JP;

Nobuto Morigasaki, Tokyo, JP;

Tatsuya Ishii, Tokyo, JP;

Takuma Ariizumi, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/49 (2006.01); C04B 35/468 (2006.01); H01G 4/12 (2006.01); C04B 35/626 (2006.01); C04B 35/64 (2006.01); H01G 4/30 (2006.01); H01G 4/005 (2006.01);
U.S. Cl.
CPC ...
C04B 35/49 (2013.01); C04B 35/6261 (2013.01); C04B 35/64 (2013.01); H01G 4/005 (2013.01); H01G 4/1227 (2013.01); H01G 4/1245 (2013.01); H01G 4/30 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3213 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3222 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3236 (2013.01); C04B 2235/3243 (2013.01); C04B 2235/3249 (2013.01); C04B 2235/3268 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/656 (2013.01); C04B 2235/768 (2013.01); C04B 2235/96 (2013.01);
Abstract

The object of the present invention is to provide the dielectric ceramic composition having good characteristics even under the high electric field intensity, and particularly good IR characteristic and the high temperature accelerated lifetime. The dielectric ceramic composition according to the present invention comprises a main component comprising a perovskite type compound shown by a compositional formula (BaSrCa)(TiZr)O(note that, said 'm', 'x', “y” and “z” all show a mol ratio, and each satisfies 0.94≤m≤1.1, 0≤x≤0.2, 0≤y≤0.2, 0.06≤z<0.2),


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