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:
Feb. 18, 2014
Filed:
Mar. 09, 2012
Makoto Endo, Tokyo, JP;
Osamu Kido, Tokyo, JP;
Hirobumi Tanaka, Tokyo, JP;
Taisuke Masuko, Tokyo, JP;
Yusuke Sato, Tokyo, JP;
Makoto Endo, Tokyo, JP;
Osamu Kido, Tokyo, JP;
Hirobumi Tanaka, Tokyo, JP;
Taisuke Masuko, Tokyo, JP;
Yusuke Sato, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A dielectric ceramic composition comprising a main component and at least one or more subcomponent elements has a dielectric particle and a grain boundary. The dielectric particle has a main component phase substantially composed of the main component, and a diffusive phase around the main component phase where at least one selected from the subcomponent elements is diffused, a local minimal value of Cs is located at an outside edge side with respect to a position of the local maximum value of Cs, and Cs is increased from a position of the local minimal value of Cs toward the outside edge, when the dielectric particle is cut on an arbitrary cutting plane including the main component phase, and Cs is defined as a concentration of one or more elements selected from the subcomponent elements in an arbitrary position in the dielectric particle.