发明名称 Perpendicular magnetic recording and perpendicular magnetic reproducing apparatus
摘要 The present invention is directed to a perpendicular magnetic recording apparatus and a perpendicular magnetic reproducing apparatus which can achieve high-density recording and high output reproduction. The perpendicular magnetic recording medium (2) is used which has a perpendicular magnetic film made of chiefly Co, Pt and a vertical coercive force of 1500 Oe or above. This recording medium is recorded by the magnetic head (4) of which at least the magnetic gap portion is formed of the soft magnetic thin film (3). This soft magnetic thin film (3) contains chiefly Fe and has a saturation magnetic flux density 4 pi Ms of 19 kG or above.
申请公布号 US5991126(A) 申请公布日期 1999.11.23
申请号 US19920960887 申请日期 1992.10.14
申请人 SONY CORPORATION 发明人 HAYASHI, KAZUHIKO;KATORI, KENJI;OKABE, AKIHIKO
分类号 G11B5/02;G11B5/00;G11B5/127;G11B5/64;G11B5/82;(IPC1-7):G11B5/127 主分类号 G11B5/02
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