Magnetic recording medium
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United States of America Patent
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Jun 23, 1987
Grant Date -
N/A
app pub date -
Dec 27, 1982
filing date -
Dec 26, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The magnetic recording medium includes a soft magnetic thin film layer of high magnetic permeability formed on a substrate, a non-magnetic thin film layer formed on the soft magnetic layer and a magnetic thin film for recording information thereon formed on the non-magnetic thin film layer. The film thickness of the non-magnetic thin film layer is equal to or less than that of the magnetic thin film layer for recording. And the non-magnetic thin film layer is an amorphous or macromolecular substance upon which the crystalline structure of the recording thin film layer forms with a perpendicular orientation favorable for magnetization.
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