Invention Grant
- Patent Title: Common mode filter
- Patent Title (中): 共模滤波器
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Application No.: US14045393Application Date: 2013-10-03
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Publication No.: US09362041B2Publication Date: 2016-06-07
- Inventor: Toshio Tomonari , Tsutomu Kobayashi , Kazunori Arimitsu
- Applicant: TDK Corporation
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: McGinn IP Law Group, PLLC.
- Priority: JP2012-223249 20121005
- Main IPC: H01F27/02
- IPC: H01F27/02 ; H01F27/28 ; H01F27/29 ; H01F17/04

Abstract:
Disclosed herein is a common mode filter that comprises a drum core including a winding core portion and a pair of flange portions provided at both ends of the winding core portion, and first and second wires wound around the winding core portion so as to form a pair-wire for each turn. The first and second wires includes one or a plurality of sparsely-wound portions in which the first and second wires are wound with adjacent pair-wires spaced from each other, and one or a plurality of closely-wound portions in which the first and second wires are wound with adjacent pair-wires in close contact with each other.
Public/Granted literature
- US20140097928A1 COMMON MODE FILTER Public/Granted day:2014-04-10
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