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.:
Date of Patent:
Apr. 28, 2020
Filed:
Mar. 31, 2016
Applicant:
Tdk Corporation, Minato-ku, Tokyo, JP;
Inventors:
Toshihiko Kaneko, Tokyo, JP;
Shogo Murosawa, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/30 (2006.01); H01G 4/12 (2006.01); H01G 4/232 (2006.01);
U.S. Cl.
CPC ...
H01G 4/30 (2013.01); H01G 4/12 (2013.01); H01G 4/232 (2013.01);
Abstract
Provided is a multilayer ceramic electronic device which is capable of preventing decrease of the specific permittivity and of showing less drop of capacitance, even when the dielectric grains constituting the dielectric layers become smaller for thinning of the dielectric layers, wherein Dg/Di≥1 is satisfied, in case that 'Di' is an average grain size of the first dielectric grains constituting the dielectric layer in the capacitance region and 'Dg' is an average grain size of the second dielectric grains in an exterior area.