Patterned master carrier for magnetic transfer, magnetic recording medium, and magnetic recording/reproducing apparatus
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United States of America Patent
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Issued Date -
Apr 20, 2006
app pub date -
Oct 18, 2005
filing date -
Oct 18, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Magnetic field absorbing regions, composed of protrusions or magnetic layers, are provided in an amplitude servo transfer pattern of a patterned master carrier for magnetic transfer. The magnetic field absorbing regions are provided in intermediate tracks between burst bit elements that constitute burst bit strings, which are provided adjacent to each other in a track width direction. The amplitude servo transfer pattern in magnetically transferred onto a magnetic recording medium. Portions of the magnetic recording medium corresponding to the magnetic field absorbing regions become magnetically non-inverted regions. Therefore, noise is not recorded, and servo tracking can be favorably performed.
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