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.

Date of Patent:
Aug. 05, 2008

Filed:

Oct. 15, 2007
Applicants:

Tomonaga Nishikawa, Tokyo, JP;

Tomokazu Ito, Tokyo, JP;

Makoto Yoshida, Tokyo, JP;

Hiroshi Kamiyama, Tokyo, JP;

Inventors:

Tomonaga Nishikawa, Tokyo, JP;

Tomokazu Ito, Tokyo, JP;

Makoto Yoshida, Tokyo, JP;

Hiroshi Kamiyama, Tokyo, JP;

Assignee:

TDK Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to surface-mount type coil components having a mounting surface for mounting them on a printed circuit board or hybrid IC (HIC) and provides a low-cost coil component having a low direct-current resistance. A common mode filter includes a bridge conductor layer which has a bridge conductor one end of which is connected to one end of a lead wire and another end of which is connected to an inner circumferential end of a coil conductor and another bridge conductor one end of which is connected to one end of another lead wire and another end of which is connected to an inner circumferential end of another coil conductor, the bridge conductor layer being formed between two coil conductor layers with an insulation film interposed between the bridge conductor layer and each of the coil conductor layers.


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