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AssigneeCanon Kabushiki Kaisha
InventorsTsutomu Shiratori, Katsumi Arisaka
Estimating the term…
There is provided a domain wall displacement type magneto-optical recording medium and a recording method that allow signals recorded with a high density over the limit of resolution of optical systems to be regenerated without increasing complexity of a recording and regenerating apparatus or narrowing an operation margin even if a substrate having address information or the like incorporated therein is used. An information track has portions used for recording and regenerating information in the form of a magneto-optical signal and portions having irregularities to provide address information or servo information formed therein alternately arranged, and directions of magnetization of the third magnetic layer are polarized in one direction above the portions having the irregularities.
A magneto-optical recording medium having a plurality of information tracks, comprising:
A method of recording information on a magneto-optical recording medium, the magneto-optical recording medium comprising a substrate having information tracks each having portions used for recording and regenerating information in the form of a magneto-optical signal and portions having prepits formed therein alternately arranged and at least first, second and third magnetic layers laminated on the substrate, the first magnetic layer having a domain wall coercivity smaller than that of the third magnetic layer, the second magnetic layer having a Curie temperature lower than that of the first magnetic layer and the third magnetic layer, and directions of magnetization of the third magnetic layer being aligned above the portions having the irregularities, the method comprising the steps of:
Dependencies are inferred from the claim text.