Information recording medium
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United States of America Patent
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Oct 20, 2009
Grant Date -
Oct 20, 2005
app pub date -
Mar 22, 2005
filing date -
Mar 25, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
In an information recording medium where respective concave parts of a magnetic layer, which is formed on at least one side e of a substrate and in which a predetermined convex/concave pattern has been formed, are filled with non-magnetic material and non-magnetic layers are formed by the non-magnetic material in at least partial regions of respective upper surfaces of respective convex parts of the magnetic layer, the non-magnetic layers are formed so that parts thereof protrude further in a direction in which the convex parts protrude than other parts of the non-magnetic layers.
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