发明名称 |
Process for treating magnetic metal power |
摘要 |
A magnetic recording medium is disclosed comprising a support and a magnetic layer comprising a magnetic metal powder which is pre-treated by a process comprising (a) treating the surface of said magnetic metal powder with a surfactant in an inert atmosphere. (b) steeping said magnetic metal powder in an organic liquid, and (c) drying said magnetic metal powder in the presence of an oxidative gas.
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申请公布号 |
US4710427(A) |
申请公布日期 |
1987.12.01 |
申请号 |
US19850731126 |
申请日期 |
1985.05.06 |
申请人 |
KONISHIROKU PHOTO INDUSTRY CO., LTD. |
发明人 |
YAMAUCHI, YASUHISA;ASANO, MASAO;ANZAI, HIDEYUKI;YASUFUKU, YOSHITAKA |
分类号 |
G03G9/08;B22F1/02;C09D5/23;C09D201/00;G03G9/083;G11B5/712;G11B5/84;H01F1/06;(IPC1-7):G11B5/706 |
主分类号 |
G03G9/08 |
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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