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Title:
MnZn FERRITE CORE AND PROCESS OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2014123709
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a MnZn ferrite core capable of obtaining high initial relative permeability (high impedance) from a low frequency region of 1 kHz to a frequency region of 200 kHz even in the case of a large sized core having an effective cross-sectional area of 90 mmor more.SOLUTION: The MnZn ferrite core is composed of a basic component composition of FeO: 52 to 53 mol%, ZnO: more than 20 mol% and less than 23 mol%, and the rest being MnO, and inevitable impurities, wherein carbon content in the inevitable impurities is suppressed to 0.0050 mass% or less.

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Inventors:
GOTO SATOSHI
IKEDA KOJI
Application Number:
JP2013145635A
Publication Date:
July 03, 2014
Filing Date:
July 11, 2013
Export Citation:
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Assignee:
JFE CHEMICAL CORP
International Classes:
H01F1/34; C01G49/00; C04B35/38; H01F3/08; H01F41/02
Domestic Patent References:
JPH04328806A1992-11-17
JPH08104563A1996-04-23
JP2002134331A2002-05-10
JP2001085217A2001-03-30
JP2010047438A2010-03-04
JPH0558721A1993-03-09
JPH1050512A1998-02-20
JP2001093718A2001-04-06
JPH04321522A1992-11-11
JPH04336401A1992-11-24
JP2006165479A2006-06-22
JPH0570782A1993-03-23
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara



 
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