| 发明名称 |
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| 摘要 |
In improved cobalt coated magnetic iron oxide having increased coercive field strength and highly efficient for use in magnetic recording devices and processes is produced by subjecting uncoated magnetic iron oxide particles to an acid treatment and then epitaxially coating the treated particles with cobalt. |
| 申请公布号 |
JPH0126163(B2) |
申请公布日期 |
1989.05.22 |
| 申请号 |
JP19830135996 |
申请日期 |
1983.07.27 |
| 申请人 |
BAYER AG |
发明人 |
PEETAA KIIMURE;YURUGEN BIIZE;GUNTAA BUKUSUBAUMU |
| 分类号 |
G11B5/712;C01G49/02;C01G51/00;C09D5/23;C09D7/12;C30B19/00;C30B29/22;G11B5/706;H01F1/11 |
主分类号 |
G11B5/712 |
| 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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