发明名称 |
PROCESS FOR PRODUCING MAGNETIC POWDER |
摘要 |
<p>A process for producing a magnetic powder which comprises coating the particle surfaces of a magnetic iron oxide with a cobalt compound or a cobalt compound and a ferrous compound and further coating with a compound of at least one metal selected from the group consisting of manganese, vanadium and zinc. There is obtained a magnetic powder having high coercivity and excellent dispersibility in organic binders. This magnetic powder is useful as a material for recording media such as magnetic tapes.</p> |
申请公布号 |
GB2127797(B) |
申请公布日期 |
1985.10.16 |
申请号 |
GB19830009296 |
申请日期 |
1983.04.06 |
申请人 |
* ISHIHARA SANGYO KAISHA LTD |
发明人 |
KAZUO * NAKATA;MASATSUYO * MARUO;KIYOSHI * ASANO |
分类号 |
H01F1/11;C09C1/24;G11B5/706;(IPC1-7):H01F1/11 |
主分类号 |
H01F1/11 |
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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