发明名称 |
Perpendicular magnetic recording medium, manufacturing method thereof, and magnetic recording-reproducing apparatus |
摘要 |
Disclosed is a perpendicular magnetic recording medium comprising a perpendicular magnetic layer formed at 280 to 450° C. by using a magnetic layer-forming material containing at least one additive component selected from the group consisting of cobalt, platinum, chromium, molybdenum and tungsten, the magnetic perpendicular layer being constructed to include a plurality of magnetic crystal grains separated from each other by crystal grain boundaries and providing the perpendicular magnetic layer in which the additive component is segregated in the crystal grain boundaries.
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申请公布号 |
US2004106010(A1) |
申请公布日期 |
2004.06.03 |
申请号 |
US20030701488 |
申请日期 |
2003.11.06 |
申请人 |
KABUSHIKI KAISHA TOSHIBA;SHOWA DENKO K,K, |
发明人 |
IWASAKI TAKESHI;HIKOSAKA TAKASHI;OIKAWA SOICHI;NAKAMURA FUTOSHI;SAKAI HIROSHI;SHIMIZU KENJI;SAKAWAKI AKIRA |
分类号 |
G11B5/64;G11B5/65;G11B5/66;G11B5/667;G11B5/73;G11B5/738;G11B5/84;G11B5/851;(IPC1-7):A41G9/00 |
主分类号 |
G11B5/64 |
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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