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:
Feb. 16, 2010
Filed:
Mar. 18, 2008
Tomoaki Nonaka, Nikaho, JP;
Hiroshi Sasaki, Nikaho, JP;
Tsutomu Odashima, Nikaho, JP;
Tetsuo Takaishi, Nikaho, JP;
Takahiro Harada, Nikaho, JP;
Tomoaki Nonaka, Nikaho, JP;
Hiroshi Sasaki, Nikaho, JP;
Tsutomu Odashima, Nikaho, JP;
Tetsuo Takaishi, Nikaho, JP;
Takahiro Harada, Nikaho, JP;
TDK Corporation, Tokyo, JP;
Abstract
A production method of a dielectric ceramic composition at least including a main component including a dielectric oxide having perovskite-type crystal structure expressed by a formula ABO(note that in the formula, 'A' indicates one or more elements selected from Ba, Ca, Sr and Mg, and that 'B' indicates one or more elements selected from Ti, Zr and Hf) comprises steps of preparing a main component material including said dielectric oxide expressed by ABO; preparing a subcomponent material including a composite oxide expressed by MRO(SiO)(note that “M” indicates at least one selected from Ca and Sr, and that “R” indicates at least one selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu); mixing said main component material and subcomponent material to obtain a dielectric ceramic composition material; and firing said dielectric ceramic composition material.