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. 14, 2009
Filed:
Sep. 29, 2005
Tomohiro Arashi, Tokyo, JP;
Yasuharu Miyauchi, Tokyo, JP;
Tomohiro Arashi, Tokyo, JP;
Yasuharu Miyauchi, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A dielectric porcelain composition here contains as main components BaO, NdO, TiO, MgO and SiOat the given ratios and as subordinate components ZnO, BOand CuO at given ratios, so that it can have a low-temperature sintering capability stable and reliable enough to permit a conductor formed of Ag, an alloy containing Ag as a main component or the like to be used as an internal conductor. It is also possible to obtain a dielectric porcelain composition that has limited resonance frequency changes with temperature changes and a specific dielectric constant lower than that of a BaO-rare earth oxide-TiObase dielectric porcelain composition, and so is suitable for multilayer type device formation.