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:
Mar. 09, 2021

Filed:

Aug. 19, 2020
Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Yuma Komaya, Tokyo, JP;

Miki Kusakabe, Yamagata, JP;

Tomokazu Tsuchiya, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 17/00 (2006.01); H02K 3/00 (2006.01); H01F 17/04 (2006.01); H01F 27/00 (2006.01); H01F 27/29 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2823 (2013.01); H01F 17/04 (2013.01); H01F 17/045 (2013.01); H01F 27/006 (2013.01); H02K 3/00 (2013.01); H01F 27/29 (2013.01); H01F 2017/0093 (2013.01);
Abstract

Disclosed herein is a common mode filter that includes a winding core part including first to third winding areas and first and second wires wound in a same direction around the winding core part and crossing each other in the third winding area. The first wire is aligned and wound in the first and second winding areas, and the second wire is aligned and wound on the first wire in the first and second winding areas, whereby a plurality of winding blocks are formed. The winding blocks include a first winding block positioned in the first winding area and second and third winding blocks positioned in the second winding area. The second wire constituting the second winding block and the second wire constituting the third winding block are separated from each other.


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