Master information carrier

主信息载体的特征在于在其基体表面上形成与信息信号对应的凹凸形状、周强磁性材料构成该凹凸形状的至少凸部表面,通过使该主信息载体的表面与形成了强磁性薄膜或强磁性粉涂敷层的片状或盘状磁记录媒体的表面接触,将与主信息载体表面的凹凸形状对应的磁化图形记录在磁记录媒体上。 A master information carrier comprises a substrate whose surface has an embossed pattern corresponding to an information signal. At least a surface of the protruding por...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ISHIDA TATSUAKI, TOHMA KIYOKAZU, SUGITA RYUJI
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:主信息载体的特征在于在其基体表面上形成与信息信号对应的凹凸形状、周强磁性材料构成该凹凸形状的至少凸部表面,通过使该主信息载体的表面与形成了强磁性薄膜或强磁性粉涂敷层的片状或盘状磁记录媒体的表面接触,将与主信息载体表面的凹凸形状对应的磁化图形记录在磁记录媒体上。 A master information carrier comprises a substrate whose surface has an embossed pattern corresponding to an information signal. At least a surface of the protruding portion of the embossed pattern is made of a ferromagnetic material. A method for writing an information signal into a sheet or disk magnetic record medium with a ferromagnetic thin film or coating is performed by putting the surface of the magnetic record medium into contact with the master information carrier so as to write a magnetized pattern corresponding to the embossed pattern of the master information carrier into the magnetic record medium.