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:
May. 22, 2012
Filed:
Mar. 25, 2010
Tomohiro Arashi, Tokyo, JP;
Hisashi Kobuke, Tokyo, JP;
Toshio Sakurai, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
To provide a dielectric ceramic composition which is free from variation in breakdown voltage, and has excellent electric properties. The dielectric ceramic composition according the present invention includes: as a main component, a component represented by a composition formula {α(xBaO-yNdO-zTiO)+β(2MgO—SiO)}, wherein x, y, and z representing a molar ratio of the BaO NdO, and TiOare each in a specific molar ratio range, and α and β representing a volume ratio of each component, zinc oxide, boron oxide, a glass having a softening point at a specific temperature or less, and silver, wherein a, b, c, and d representing a mass ratio of each of the minor components based on the main component are each in a specific mass ration range.