Magnetic recording material
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United States of America Patent
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Jan 23, 1990
Grant Date -
N/A
app pub date -
Dec 15, 1987
filing date -
Dec 27, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In construction of a magnetic recording material having overlaid anodic oxide layers and well suited for perpendicular magnetic recording, a substrate is made of a hard material and Al predominant layers of 0.1 to 2 .mu.m thickness and formed on the substrate as a base for the overlaid anodic oxide layers for improvement in mechanical properties with acceptable magnetic recording characteristics.
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