发明授权
- 专利标题： Perpendicular magnetic recording medium
- 专利标题（中）： 垂直磁记录介质
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申请号： US721715申请日： 1985-04-10
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公开(公告)号： US4707756A公开(公告)日： 1987-11-17
- 发明人: Masaaki Futamoto , Yukio Honda , Yasutaro Uesaka , Kazuetsu Yoshida
- 申请人： Masaaki Futamoto , Yukio Honda , Yasutaro Uesaka , Kazuetsu Yoshida
- 申请人地址： JPX Tokyo JPX Osaka
- 专利权人： Hitachi, Ltd.,Hitachi Maxell Ltd.
- 当前专利权人： Hitachi, Ltd.,Hitachi Maxell Ltd.
- 当前专利权人地址： JPX Tokyo JPX Osaka
- 优先权： JPX59-70888 19840411
- 主分类号： G11B5/62
- IPC分类号： G11B5/62 ; G11B5/64 ; G11B5/66 ; G11B5/667 ; G11B5/73 ; G11B5/738 ; G11B15/00
摘要：
Disclosed is a perpendicular magnetic recording medium wherein an underlayer made of a material containing Si and/or Ge as its principal ingredient is deposited on a substrate, and a perpendicular magnetic film made of a Co-based alloy is deposited on the underlayer. With the perpendicular magnetic recording medium, the perpendicular magnetic film has an enhanced degree of C-axis orientation, and the bond strength between the perpendicular magnetic film and the substrate is also enhanced when the substrate is non-metallic.