发明名称 MAGNETO-OPTICAL RECORDING METHOD USING A MAGNETO-OPTICAL RECORDING MEDIUM HAVING TWO OR MORE MAGNETIC LAYERS TO ALLOW RECORDING AND REPRODUCTION TO BE EFFECTED SIMULTANEOUSLY AND MAGNETO-OPTICAL RECORDING MEDIUM USED IN THE METHOD
摘要 A magneto-optical recording method employs a magneto-optical recording medium having a first magnetic layer which exhibits low coercive force at room temperature and high Curie temperature and a second magnetic layer which is exchange-coupled to the first magnetic layer and which exhibits a higher coercive force and a lower Curie temperature as compared with those of the first magnetic layer. A magnetic field modulated in accordance with information to be recorded is applied to the magneto-optical recording medium while irradiating it with a light beam of a constant intensity so as to record the information. The recorded information is simultaneously confirmed by using a reflected light of this light beam.
申请公布号 CA2073924(C) 申请公布日期 1997.03.04
申请号 CA19922073924 申请日期 1992.07.15
申请人 CANON KABUSHIKI KAISHA 发明人 KOBAYASHI, TADASHI;HASEGAWA, KOYO;HONGU, KAZUOKI;YAMAMOTO, MASAKUNI
分类号 G11B11/105;(IPC1-7):G11B13/04 主分类号 G11B11/105
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