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. 03, 2017
Filed:
May. 15, 2015
Applicant:
Taiyo Yuden Co., Ltd., Taito-ku, Tokyo, JP;
Inventor:
Youichi Mizuno, Takasaki, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/00 (2006.01); H01G 4/12 (2006.01); H01G 4/30 (2006.01); C04B 35/468 (2006.01); B32B 18/00 (2006.01); C01G 23/00 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
H01G 4/1227 (2013.01); B32B 18/00 (2013.01); B82Y 30/00 (2013.01); C01G 23/006 (2013.01); C04B 35/4682 (2013.01); H01G 4/30 (2013.01); C01P 2002/01 (2013.01); C01P 2002/34 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C04B 2235/3236 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/761 (2013.01); C04B 2237/346 (2013.01); Y10T 428/2982 (2015.01);
Abstract
A multi-layer ceramic capacitor is made by alternately layering a dielectric layer constituted by a sintered body of a ceramic powder, and an internal electrode layer. The ceramic powder contains, as a main composition, barium titanate powder having a perovskite structure with a median size of 200 nm or smaller as measured by SEM observation, wherein the barium titanate powder is such that the percentage of barium titanate particle having twin defects in the barium titanate powder is less than 10% as measured by TEM observation and that its crystal lattice c/a is 1.0075 or more.