| 发明名称 |
Perpendicular magnetic recording medium |
| 摘要 |
A perpendicular magnetic recording medium comprises a recording medium base, a lower layer formed on the recording medium base, and an upper layer formed on the lower layer. The upper layer is made of cobalt-chromium, and the lower layer at least includes cobalt and chromium.
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| 申请公布号 |
US4792486(A) |
申请公布日期 |
1988.12.20 |
| 申请号 |
US19880176832 |
申请日期 |
1988.04.04 |
| 申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
ISHIZAKA, YASUO;WATANABE, NOBORU;KIMURA, KAZUO;IMAOKA, EIICHIRO |
| 分类号 |
G11B5/00;G11B5/66;(IPC1-7):G11B5/66 |
主分类号 |
G11B5/00 |
| 代理机构 |
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