Magnetic recording medium
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United States of America Patent
Stats
-
Jun 17, 2003
Grant Date -
Jul 5, 2001
app pub date -
Dec 18, 2000
filing date -
Dec 20, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic recording medium has a non-magnetic substrate, an under layer, a magnetic layer, and a protective layer in the recited order. The magnetic layer consists of a plurality of magnetic components embedded in a pattern in an isolating component. Each magnetic component includes at least one magnetic component of large coercive force and one of a magnetic component of small coercive force. The two components abut each other. In one embodiment the two components form one or more alternating layers. In another embodiment, one of the components has a recess in its upper surface which is filled with the other component. In still another embodiment, the two components are disposed side by side passing through the isolating component.
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