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. 01, 2011
Filed:
Feb. 23, 2005
Kazushige Ito, Tokyo, JP;
Haruya Hara, Tokyo, JP;
Toshihiro Iguchi, Tokyo, JP;
Shigeki Sato, Tokyo, JP;
Akira Sato, Tokyo, JP;
Takashi Kojima, Tokyo, JP;
Kazushige Ito, Tokyo, JP;
Haruya Hara, Tokyo, JP;
Toshihiro Iguchi, Tokyo, JP;
Shigeki Sato, Tokyo, JP;
Akira Sato, Tokyo, JP;
Takashi Kojima, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A multilayer ceramic capacitor having a laminate including alternately stacked dielectric layers of a sintered compact composed of crystal particles of a dielectric porcelain composite and internal-electrode layers. The dielectric porcelain composite comprises a primary constituent containing barium titanate; a first accessory constituent composed of at least one of MgO, CaO, BaO, and SrO; a second accessory constituent containing silicon oxide as a major constituent; a third accessory constituent composed of at least one of VO, MoO, and WO; a fourth accessory constituent composed of an oxide of R1 (wherein R1 is at least one of Sc, Er, Tm, Yb, and Lu); a fifth accessory constituent composed of CaZrOor a combination of CaO and ZrO; and a sixth accessory constituent composed of an oxide of R2 (wherein R2 is at least one of Y, Dy, Ho, Tb, Gd, and Eu).