发明名称 |
Composite magnetic material and manufacturing method thereof |
摘要 |
A composite magnetic material having excellent magnetic characteristics and a manufacturing method thereof are provided, without requiring complex processes such as a process of flattening a soft magnetic material or controlling an oxygen concentration and without equipment costs of a magnetic field applying apparatus, etc. The composite magnetic material according to the present invention comprises multiple composite magnetic particles having metal magnetic particles and insulating films surrounding the metal magnetic particles; the multiple composite magnetic particles are bonded to each other, and the metal magnetic particles comprise only the metal magnetic material and impurities with the mass ratio to the metal magnetic particle of 120 ppm or less.
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申请公布号 |
US2004247939(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
US20040857008 |
申请日期 |
2004.06.01 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
TOYODA HARUHISA |
分类号 |
H01F1/24;H01F1/26;H01F41/02;(IPC1-7):B32B27/02 |
主分类号 |
H01F1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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