发明名称 |
SUBSTRATE FOR RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM USING SAME |
摘要 |
A substrate for a recording medium suited for thermally assisted recording methods has a disc shape with a center hole and includes a silicon single-crystal supporting member; an SiO2 film formed on the silicon single-crystal supporting member; a main face having a film thickness of the SiO2 film thereon which is less than 10 nm; a substrate inner periphery end face adjacent to the center hole; a substrate inner periphery chamfer portion adjacent to the main face and to the substrate inner periphery end face; a substrate outer periphery end face positioned on the side of the main face opposite the substrate inner periphery end face; and a substrate outer periphery chamfer portion adjacent to the main face and to the substrate outer periphery end face. A magnetic recording medium includes at least the above substrate and a magnetic recording layer formed on the substrate.
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申请公布号 |
US2009148723(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
US20080329659 |
申请日期 |
2008.12.08 |
申请人 |
FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTD. |
发明人 |
TSUDA KOUICHI |
分类号 |
G11B5/73;G11B5/62 |
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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