Dynamic magnetic information storage or retrieval – Record editing
Patent
1994-09-30
1996-01-02
Mis, David
Dynamic magnetic information storage or retrieval
Record editing
360 59, 365122, G11B 1304
Patent
active
054814103
ABSTRACT:
A magnetooptical recording medium is provided with a transparent substrate, a first magnetic layer, a second magnetic layer having a higher Curie point and a lower coercive force than those of the first magnetic layer and being exchange coupled with the first magnetic layer. The medium further includes a third magnetic layer located between the first and second magnetic layers, so that the first magnetic layer is closer to the transparent substrate than the second and third magnetic layers and the third magnetic layer is closer to the transparent substrate than the second magnetic layer. Also disclosed is a process for recording on such a medium.
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Fujii Eiichi
Kasama Nobuhiro
Kawade Hisaaki
Kobayashi Tadashi
Osato Yoichi
Canon Kabushiki Kaisha
Mis David
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