Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Reexamination Certificate
2005-05-17
2005-05-17
Bernatz, Kevin M (Department: 1773)
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
C369S013460, C369S013470, C428S611000, C428S409000, C428S690000, C428S690000
Reexamination Certificate
active
06894954
ABSTRACT:
A magneto-optical recording medium has a domain wall displacement layer, a recording layer for accumulating information and a switching layer arranged between said domain wall displacement layer and said recording layer and having a Curie temperature lower than those of the latter two layers. The domain wall displacement layer, the switching layer and the recording layer are coupled by exchange coupling at temperature not higher than the Curie temperature of the switching layer. The saturation magnetization of the domain wall displacement layer and the recording layer are in opposite directions to each other when the layers are coupled by exchange coupling at a temperature close to the Curie temperature of the switching layer.
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JPO Abstract Translation of JP 2000-100006-A (Doc. ID: JP 200010006 A).
Bernatz Kevin M
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
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