发明名称 |
Magnetic recording medium and method of manufacturing the same |
摘要 |
A magnetic recording medium exhibits a high coercive force and suppresses noises caused therefrom at a low level. The magnetic recording medium includes a nonmagnetic substrate, a nonmagnetic undercoating layer on the substrate where the undercoating layer has a hexagonal close packing structure or a combination of the hexagonal close packing structure and a body center cubic structure. The magnetic recording medium includes a nonmagnetic intermediate layer on the undercoating layer, where the intermediate layer has a hexagonal close packing structure or a combination of the hexagonal close packing structure and a body center cubic structure, and a magnetic layer on the intermediate layer. The magnetic layer has a granular structure formed of ferromagnetic crystal grains and oxide grain boundaries or nitride grain boundaries surrounding the ferromagnetic crystal grains.
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申请公布号 |
US2003044649(A1) |
申请公布日期 |
2003.03.06 |
申请号 |
US20020231490 |
申请日期 |
2002.08.30 |
申请人 |
FUJI ELECTRIC CO., LTD. |
发明人 |
TAKIZAWA NAOKI;SHIMIZU TAKAHIRO;UWAZUMI HIROYUKI;OIKAWA TADAAKI;NAKAMURA MIYABI |
分类号 |
G11B5/738;G11B5/64;G11B5/65;G11B5/73;G11B5/851;(IPC1-7):G11B5/66 |
主分类号 |
G11B5/738 |
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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