发明授权
- 专利标题： Magnetic recording medium and magnetic recording apparatus
- 专利标题（中）： 磁记录介质和磁记录装置
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申请号： US09385682申请日： 1999-08-30
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公开(公告)号： US06572988B1公开(公告)日： 2003-06-03
- 发明人: Nobuyuki Inaba , Kazuetsu Yoshida , Kazusuke Yamanaka , Fumiyoshi Kirino , Masaaki Futamoto
- 申请人： Nobuyuki Inaba , Kazuetsu Yoshida , Kazusuke Yamanaka , Fumiyoshi Kirino , Masaaki Futamoto
- 优先权： JP10-248702 19980902
- 主分类号： G11B566
- IPC分类号： G11B566
摘要：
A magnetic recording medium has a magnetic recording film in which the magnitude of saturation magnetization Ms(T=5° K) at 5° K and magnitude of saturation magnetization Ms(T=300° K) at 300° K satisfy: Ms(T=300° K)/Ms(T=5° K)≧0.75. The recording medium enables the high-density recording, and a magnetic recording apparatus using this recording medium can yield a sufficiently high reproduction signal level within the operating temperature range of the apparatus.