| 发明名称 |
Non-magnetic particles. |
| 摘要 |
<p>Non-magnetic acicular or spindle-shaped alpha -Fe2O3 particles suitable for use in a non-magnetic undercoat layer of a magnetic recording medium, said particles being coated with at lest one of an Al compound, a silane coupling agent, a titanate coupling agent, an aluminate coupling agent and a zirconate coupling agent.</p> |
| 申请公布号 |
EP0582472(A1) |
申请公布日期 |
1994.02.09 |
| 申请号 |
EP19930306168 |
申请日期 |
1993.08.04 |
| 申请人 |
TODA KOGYO CORP. |
发明人 |
HAYASHI, KAZUYUKI;IWASAKI, KEISUKE;TANAKA, YASUYUKI;OSHUGI, MINORU;HARADA, TOSHIHARU;ISOAI, MASARU;TAKAMA, KAZUSHI |
| 分类号 |
G11B5/73;G11B5/733;G11B5/738;(IPC1-7):G11B5/704 |
主分类号 |
G11B5/73 |
| 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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