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 a low coercive force at room temperature and a 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.
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申请公布号 |
US5428586(A) |
申请公布日期 |
1995.06.27 |
申请号 |
US19940257453 |
申请日期 |
1994.06.08 |
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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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