发明名称 MAGNETO-OPTICAL RECORDING MEDIUM AND ITS RECORDING AND REPRODUCING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide an magneto-optical recording medium and its recording and reproducing device capable of performing a tracking control by a sample servo system and also capable of securing the flatness of a substrate surely in the magneto-optical recording medium of a magnetic domain magnification reproduction system and its recording and reproducing device. SOLUTION: In the magneto-optical recording medium which is equipped with an recording layer in which information is recorded and a reproducing layer in which after recorded magnetic domains recorded in a recording layer are transferred and the magnetic domains are magnified and from which information is read out, a mark for sample servo control in which a magnetic coupling is interrupted, which is not a conventional pit having a recessed shape or a protruded shape is used as the mark for sample servo required for tracking. As a result, the flatness of the substrate can be secured surely and inconvenience such as deterioration of optical characteristics resulting from ruggedness of the substrate is never generated. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2004288258(A) 申请公布日期 2004.10.14
申请号 JP20030076907 申请日期 2003.03.20
申请人 HITACHI MAXELL LTD 发明人 IMAI SUSUMU;AWANO HIROYUKI;ISHIZAKI OSAMU
分类号 G11B11/105;(IPC1-7):G11B11/105 主分类号 G11B11/105
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