| 发明名称 |
Magnetic recording medium, method of producing it, and magnetic recording apparatus using it. |
| 摘要 |
A magnetic recording medium includes in a magnetic film (5) first areas (39) containing magnetically pre-recorded readable data (17) and second areas (40) for magnetically recording and reading data (16). The first and second areas (39, 40) may co-exist in mixture and be defined at least partly by radial division of a disk-shaped recording medium. <IMAGE> |
| 申请公布号 |
EP0657884(A1) |
申请公布日期 |
1995.06.14 |
| 申请号 |
EP19950101862 |
申请日期 |
1990.01.11 |
| 申请人 |
HITACHI, LTD. |
发明人 |
YONEZAWA, SEIJI;KATAOKA, KEIJI;FUKKE, HAJIME;TERASAWA, TSUNEO;KATO, KEIZO;MIYAMOTO, HARUKAZU;KINSTAETTER, KLAUS;ITO, MASARU;OHTA, NORIO |
| 分类号 |
G09B5/06;G11B5/012;G11B5/55;G11B5/58;G11B5/596;G11B5/62;G11B5/74;G11B5/82;G11B5/84;G11B5/855;G11B7/007;G11B19/02;G11B20/12;G11B27/034;G11B27/10;G11B27/19;G11B27/28 |
主分类号 |
G09B5/06 |
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