发明名称 |
Radio device, channel allocation method, and channel allocation program |
摘要 |
A compound magnetic material having high heat resistance is provided. A fabrication method of a compound magnetic material includes the step of preparing mixed powder including an organic resin and compound magnetic particles. The long-period heat resistance temperature of the organic resin is at least 200° C. The containing ratio of the organic resin to the compound magnetic particles exceeds 0 mass % and not more than 0.2 mass %. The compound magnetic particle includes a metal magnetic particle, and a coat layer containing metal oxide, directly bound to the surface of the metal magnetic particle. The fabrication method of a compound magnetic material includes the steps of forming a compact by introducing mixed powder into a die having a lubricant applied to its surface and conducting warm-compacting, and applying heat treatment to the compact.
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申请公布号 |
US2004258552(A1) |
申请公布日期 |
2004.12.23 |
申请号 |
US20040490096 |
申请日期 |
2004.03.17 |
申请人 |
SHIMADA YOSHIYUKI;OYAMA HITOSHI;NISHIOKA TAKAO |
发明人 |
SHIMADA YOSHIYUKI;OYAMA HITOSHI;NISHIOKA TAKAO |
分类号 |
H01F1/28;H01F1/33;(IPC1-7):B22F1/02 |
主分类号 |
H01F1/28 |
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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