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:
Jan. 01, 2013
Filed:
Mar. 23, 2010
Applicants:
Yasuharu Miyauchi, Tokyo, JP;
Tomoko Nakamura, Tokyo, JP;
Toshiyuki Suzuki, Tokyo, JP;
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/468 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dielectric porcelain composition contains a major component represented by a composition formula (BaO.xTiO). The dielectric porcelain composition contains also contains a first minor component represented by a composition formula rBOand a second minor component represented by a composition formula rCuO. In the formulae, x is a molar ratio of TiOto BaO and is within a range of 4.6 to 8, ris a weight ratio of BOwith respect to the major component and is within a range of 0.5 to 5% by mass, and ris a weight ratio of CuO with respect to the major component and is within a range of 0.1 to 3% by mass.