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:
Mar. 19, 2013
Filed:
Mar. 23, 2011
Jun Ikeda, Nagaokakyo, JP;
Shoichiro Suzuki, Nagaokakyo, JP;
Jun Ikeda, Nagaokakyo, JP;
Shoichiro Suzuki, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo-Shi, Kyoto-fu, JP;
Abstract
There is provided a dielectric ceramic composition suitable for, for example, a car-mounted monolithic ceramic capacitor used in a high-temperature environment. It is represented by the composition formula: 100(BaCa)TiO+aMgO+bVO+cSiO+dROwherein R represents at least one metal element selected from Y, La, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb; and a, b, c, and d each represent a moles. The dielectric ceramic composition satisfying the requirements of 0.03≦x≦0.20, 0.99≦m≦1.03, 0.10≦a≦5.0, 0.025≦b≦2.5, 0.20≦c≦8.0, and 2.5≦d<3.5. Dielectric ceramic layers in a monolithic ceramic capacitor are formed of a sintered body of the dielectric ceramic composition.