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:
Jul. 28, 2015
Filed:
Jan. 23, 2014
Applicant:
Taiyo Yuden Co., Ltd., Taito-ku, Tokyo, JP;
Inventors:
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 5/00 (2006.01); H01F 27/28 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01);
Abstract
A common mode choke coil exhibiting greater reliability against moisture load includes a nonmagnetic layer made of glass, magnetic layers placed in a manner sandwiching the nonmagnetic layer, and two or more coil conductors embedded in a base material constituted by the nonmagnetic layer and magnetic layers, wherein Mg segregation is present in the nonmagnetic layer and the Mg segregation accounts for 0.5 to 16 percent of the total area as observed on an electron micrograph of a section of the nonmagnetic layer, while the size of Mg segregation is preferably 0.2 to 10 μm.