发明授权
US06125083A Magneto-optical recording method and medium comprising three layers, whose middle layer has a lower curie temperature than the other layers 失效
磁光记录方法和包含三层的介质,其中间层的居里温度低于其他层

  • 专利标题: Magneto-optical recording method and medium comprising three layers, whose middle layer has a lower curie temperature than the other layers
  • 专利标题(中): 磁光记录方法和包含三层的介质,其中间层的居里温度低于其他层
  • 申请号: US982454
    申请日: 1997-12-02
  • 公开(公告)号: US06125083A
    公开(公告)日: 2000-09-26
  • 发明人: Naoki NishimuraTomoyuki HirokiTakeshi Okada
  • 申请人: Naoki NishimuraTomoyuki HirokiTakeshi Okada
  • 申请人地址: JPX Tokyo
  • 专利权人: Canon Kabushiki Kaisha
  • 当前专利权人: Canon Kabushiki Kaisha
  • 当前专利权人地址: JPX Tokyo
  • 优先权: JPX6-128778 19940610; JPX6-128779 19940610; JPX6-128780 19940610; JPX6-201979 19940826; JPX6-201980 19940826; JPX6-236209 19940930; JPX6-258002 19941024
  • 主分类号: G11B7/007
  • IPC分类号: G11B7/007 G11B11/105 G11B11/00
Magneto-optical recording method and medium comprising three layers,
whose middle layer has a lower curie temperature than the other layers
摘要:
In a magneto-optical recording medium, a first magnetic layer for participating in reproduction of information is laminated on a substrate. A second magnetic layer for storing information is laminated on the first magnetic layer. A third magnetic layer having a Curie temperature lower than those of the first and second magnetic layers is disposed between the first magnetic layer and the second magnetic layer. A magnetization of a region of the first magnetic layer adjacent to a region of the third magnetic layer the temperature of which is above the Curie temperature of the third magnetic layer is aligned with the direction of magnetization of a region around the region of the first magnetic layer.
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