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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:
Sep. 01, 2020
Filed:
Mar. 19, 2019
Tdk Corporation, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A dielectric composition has barium, strontium, and bismuth calcium titanates constituting a main component and subcomponent. 'a' mol % represents a content of barium titanate in terms of BaTiO, 'b' mol % strontium titanate in terms of SrTiO, and “c” mol % bismuth calcium titanate in terms of CaBiTiOin the main component composition. a+b+c=100 is satisfied, 50≤a≤83, 12≤b≤49.5, 0.5≤c≤5. The dielectric composition includes a first subcomponent constituted by at least one compound including one of manganese, iron, and chromium. The first subcomponent is included in a ratio of 0.2 wt % or more and 3 wt % or less in terms of total of MnCO, FeO, and CrOwith respect to 100 wt % of the main component. The dielectric composition includes a second subcomponent compound including niobium, included in a ratio of 0.1 wt % or more and 3 wt % or less in terms of NbOwith respect to 100 wt % of the main component.