| 申请日期 | 2025-07-17 | 申请号 | JP2002216595 |
| 公开（公告）号 | JP4287099B2 | 公开（公告）日 | 2009-07-01 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | TOSHIBA CORP; SHOWA DENKO KK | ||
| 简介 | A perpendicular magnetic recording medium includes a magnetic recording layer stacked on a substrate and having a first perpendicular magnetic recording layer containing cobalt, and a second perpendicular magnetic recording layer mainly containing a crystalline alloy which contains a rare earth element and a transition metal. | ||
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