| 发明名称 |
Nonmagnetic particles to improve properties of magnetic recording compositions. |
| 摘要 |
<p>Ferromagnetic recording elements with improved physical properties have from 20 to 50% of the volume of ferromagnetic particles replaced by nonmagnetic particles of a size smaller than the thickness of the magnetic layer.</p> |
| 申请公布号 |
EP0132040(A1) |
申请公布日期 |
1985.01.23 |
| 申请号 |
EP19840303843 |
申请日期 |
1984.06.06 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HILLER, DALE MURRAY |
| 分类号 |
C09D5/23;C09D7/12;G11B5/708;(IPC1-7):G11B5/708 |
主分类号 |
C09D5/23 |
| 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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