| 发明名称 |
Magnetic iron oxide particles, a process for producing the same and a magnetic recording medium |
| 摘要 |
Disclosed herein are magnetic composite iron oxide particles comprising spinel-type Fe3O4 particles as core particles and spinel-type CoFe2O4 outerlayer of the composite iron oxide particles, a process for producing the same, and a magnetic recording medium comprising a substrate and a magnetic recording layer containing the said magnetic iron oxide particles.
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| 申请公布号 |
US5449565(A) |
申请公布日期 |
1995.09.12 |
| 申请号 |
US19930012164 |
申请日期 |
1993.01.28 |
| 申请人 |
TODA KOGYO CORPORATION |
发明人 |
AOKI, KOSO;SUMITA, HIROSHI;HORIISHI, NANAO |
| 分类号 |
C01G49/00;G11B5/706;G11B5/712;H01F1/11;(IPC1-7):G11B5/016 |
主分类号 |
C01G49/00 |
| 代理机构 |
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