发明名称 Production of signal-carrying magnetic recording medium.
摘要 <p>A process for preparing a signal-carrying magnetic recording medium which comprises piling up a first magnetic recording medium having recorded signals and a second magnetic recording medium having no recorded signal, the scond magnetic recording medium having a magnetic layer comprising hexagonal crystalline ferrite particles and a coercive force of 1/2 or less of that of the first magnetic recording medium at an ordinary temperature, and applying thereto alternating magnetic field at a temperature at which the coercive force of the second magnetic recording medium is lower than that at an ordinary temperature, whereby the signals recorded on the first magnetic recording medium are transcribed to the second magnetic recording medium.</p>
申请公布号 EP0286064(A2) 申请公布日期 1988.10.12
申请号 EP19880105470 申请日期 1988.04.06
申请人 HITACHI MAXELL LTD. 发明人 KISHIMOTO, MIKIO;KITAHATA, SHINICHI
分类号 G11B5/86 主分类号 G11B5/86
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