发明名称 |
Magnetic recording medium and method of producing the same |
摘要 |
With the use of a novel method in which after a magnetic recording medium carrying a ferromagnetic metal thin film is heated, a protective layer is developed on the ferromagnetic metal thin film by a known plasma CVD technique while an out gas from the magnetic recording medium being eliminated by absorption, another method in which a ferromagnetic metal thin film and a protective layer are formed in succession within a vacuum chamber, or a further method in which after a non-magnetic substrate is heated, a ferromagnetic metal thin film and a protective layer are formed in succession within a vacuum chamber while an out gas from the non-magnetic substrate and the ferromagnetic metal thin film being eliminated by absorption, the atomic ratio of the hydroxyl group to a primary component metal element contained in the ferromagnetic metal thin film can be decreased at the interface between the ferromagnetic metal thin film and the protective layer.
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申请公布号 |
US5451427(A) |
申请公布日期 |
1995.09.19 |
申请号 |
US19930046712 |
申请日期 |
1993.04.16 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAKAHASHI, KIYOSHI;MURAI, MIKIO;ODAGIRI, MASARU |
分类号 |
G11B5/72;G11B5/725;(IPC1-7):G11B5/00 |
主分类号 |
G11B5/72 |
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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