Invention Grant
- Patent Title: Common mode choke coil and method for manufacturing the same
- Patent Title (中): 共模扼流线圈及其制造方法
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Application No.: US13601889Application Date: 2012-08-31
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Publication No.: US09245680B2Publication Date: 2016-01-26
- Inventor: Miho Kitamura , Hayami Kudo , Atsushi Yamamoto , Akihiro Nakamura
- Applicant: Miho Kitamura , Hayami Kudo , Atsushi Yamamoto , Akihiro Nakamura
- Applicant Address: JP Kyoto-fu
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto-fu
- Agency: Studebaker & Brackett PC
- Priority: JP2011-191664 20110902
- Main IPC: H01F5/00
- IPC: H01F5/00 ; H01F27/30 ; H01F1/00 ; H01F17/00 ; H01F41/04

Abstract:
There is provided a common mode choke coil in which a non-magnetic layer and a second magnetic layer stacked on a first magnetic layer and two facing conductive coils are included in the non-magnetic layer, the non-magnetic layer is formed of sintered glass ceramics, the conductive coils and are formed of a conductor containing copper, and at least one of the first magnetic layer and the second magnetic layer is formed of a sintered ferrite material containing Fe2O3, Mn2O3, NiO, ZnO and CuO. The sintered ferrite material has an Fe2O3-reduced content of 25 to 47 mol % and a Mn2O3-reduced content of 1 to 7.5 mol %, or Fe2O3-reduced content of 35 to 45 mol % and a Mn2O3-reduced content of 7.5 to 10 mol %, and a CuO reduced content of 5 mol %.
Public/Granted literature
- US20130222104A1 COMMON MODE CHOKE COIL AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2013-08-29
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