| 发明名称 |
Magnetite particles and production process of the same |
| 摘要 |
<p>There are provided magnetite particles characterized in that the particle shape is octahedron, the average particle diameter is not more than 0.6 mu m, the coercive force is 40 to 100 Oe (3.18 to 7.96 kA/m) at 10 kOe, and the electrical resistance is not less than 1 x 10<4> OMEGA .cm, and production process of the same. <IMAGE></p> |
| 申请公布号 |
EP0826635(A1) |
申请公布日期 |
1998.03.04 |
| 申请号 |
EP19970114574 |
申请日期 |
1997.08.22 |
| 申请人 |
MITSUI MINING & SMELTING CO., LTD. |
发明人 |
MIWA, MASAHIRO;MIYAZONO, TAKESHI;HASHIUCHI, MASACHIKA |
| 分类号 |
C01G49/00;C01G49/08;G03G9/083;H01F1/00;(IPC1-7):C01G49/08 |
主分类号 |
C01G49/00 |
| 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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