发明名称 Magnetooptical recording medium on which high-density information can be recorded and method of reproducing the recorded information.
摘要 A magnetooptical recording medium includes a first magnetic layer, a second magnetic layer whose Curie temperature is lower than that of the first magnetic laye, and a third magnetic layer, comprising a vertically-magnetizing film, whose Curie temperature is higher than that of the second magnetic layer. The first magnetic layer, the second magnetic layer and the third magnetic layer are in a state of exchange coupling with each other at a portion of a vertically-magnetizing film. A domain walls formed in the first magnetic layer moves when the temperature of the medium has been raised to at least the Curie temperature of the second magnetic layer. <IMAGE>
申请公布号 EP0618572(A3) 申请公布日期 1995.04.05
申请号 EP19940302309 申请日期 1994.03.30
申请人 CANON KK 发明人 SHIRATORI TSUTOMU C O CANON KA;HIROKI TOMOYUKI C O CANON KABU
分类号 G11B11/105;(IPC1-7):G11B11/10 主分类号 G11B11/105
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