发明授权
- 专利标题： Magnetic recording medium and magnetic recording apparatus using the same
- 专利标题（中）： 磁记录介质及使用其的磁记录装置
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申请号： US10202875申请日： 2002-07-26
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公开(公告)号： US06716516B2公开(公告)日： 2004-04-06
- 发明人: Masaaki Futamoto , Nobuyuki Inaba , Yoshiyuki Hirayama , Yukio Honda , Kazuetsu Yoshida , Kenya Ito
- 申请人： Masaaki Futamoto , Nobuyuki Inaba , Yoshiyuki Hirayama , Yukio Honda , Kazuetsu Yoshida , Kenya Ito
- 优先权： JP9-139655 19970529; JP9-144835 19970603; JP9-265445 19970930
- 主分类号： G11B566
- IPC分类号： G11B566
摘要：
Magnetic recording medium includes at least two layers having different magnetic anisotropy constants formed on a substrate and the perpendicular magnetic anisotropy of the second magnetic film of those magnetic films, far from the substrate surface, made equal to or larger than that of the first magnetic film near to the substrate surface, thus improving the magnetic isolation.