发明名称 |
MAGNETO-OPTICAL RECORDING MEDIUM |
摘要 |
A magneto-optical disk having a magnetic layer and a conductive layer laminated on a transparent substrate, and having a lubricant layer provided on the conductive layer. Recording and reproduction on and from the magneto-optical disk are performed by means of a flying head. The flying head glides above and lands on the lubricant layer. The magneto-optical disk can therefore be removed from the device easily since a magnetic head does not adhere to a recording medium. Further, a depressing force exerted on the flying head is controlled so as to maintain a constant floating gap between the flying head and the recording medium. The depressing force is controlled by electrostatic capacity between an electrode, provided on a bottom face of the flying head, and the conductive layer. Consequently, highly reliable recordings can be made since a magnetic field intensity applied to the magnetic layer becomes constant. It is desirable that the lubricant layer be composed of an organic binder containing a powder belonging to the ethylene tetrafluoride resin family.
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申请公布号 |
CA2036138(C) |
申请公布日期 |
1995.11.14 |
申请号 |
CA19912036138 |
申请日期 |
1991.02.12 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
OHTA, KENJI;NAKAYAMA, JUNICHIRO;KATAYAMA, HIROYUKI |
分类号 |
G11B11/10;G11B7/09;G11B11/105;(IPC1-7):G11B13/04 |
主分类号 |
G11B11/10 |
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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