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. 03, 2015
Filed:
Jun. 19, 2013
Applicant:
Taiyo Yuden Co., Ltd., Taito-ku, Tokyo, JP;
Inventors:
Yukihiro Konishi, Takasaki, JP;
Yusuke Kowase, Takasaki, JP;
Kazumichi Hiroi, Takasaki, JP;
Kotaro Mizuno, Takasaki, JP;
Ayumu Sato, Takasaki, JP;
Assignee:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/468 (2006.01); H01G 4/10 (2006.01); H01G 4/12 (2006.01); H01G 4/30 (2006.01); B32B 18/00 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
H01G 4/1218 (2013.01); H01G 4/1209 (2013.01); H01G 4/30 (2013.01); H01G 4/1227 (2013.01); B32B 18/00 (2013.01); C04B 35/4682 (2013.01); B82Y 30/00 (2013.01); C04B 2235/3236 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/656 (2013.01); C04B 2235/6584 (2013.01); C04B 2235/663 (2013.01); C04B 2235/782 (2013.01); C04B 2235/784 (2013.01); C04B 2235/785 (2013.01); C04B 2237/346 (2013.01); C04B 2237/704 (2013.01);
Abstract
A dielectric ceramic whose primary component is an ABOcompound (A contains Ba and B contains Ti) has a per-layer thickness of approx. 0.5 μm or less, where the volume ratio to all dielectric sintered grains of those whose grain size is in a range of 0.02 μm to 0.15 μm is adjusted to a grain size distribution of 1% to 10%. High dielectric constant and high reliability can be achieved at the same time with the dielectric ceramic.