发明名称 |
Magnetic recording medium |
摘要 |
A magnetic recording medium comprising a non-magnetic substrate having thereon a non-magnetic undercoat, a magnetic film and optionally a protective film. The magnetic film comprises a material containing Co as a main component. The non-magnetic undercoat comprises at least two layers including a first undercoat film and a second undercoat film provided on the first undercoat film. The first undercoat film comprises a material containing Cr as a main component, and the second undercoat film comprises a material selected from the group consisting of a Cr/Nb-base alloy, a Cr/W-base alloy, a Cr/V-base alloy and a Cr/Mo-base alloy as a main component.
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申请公布号 |
US6255006(B1) |
申请公布日期 |
2001.07.03 |
申请号 |
US19990227916 |
申请日期 |
1999.01.08 |
申请人 |
SHOWA DENKO KABUSHIKI KAISHA |
发明人 |
OHNAMI KAZUNORI;KANAZAWA HIROSHI;SAKAI HIROSHI |
分类号 |
G11B5/66;(IPC1-7):G11B5/66 |
主分类号 |
G11B5/66 |
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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