Perpendicular magnetic recording head having narrow recording gap and perpendicular magnetic recording apparatus using the same
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United States of America Patent
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Mar 16, 2004
Grant Date -
Mar 28, 2002
app pub date -
Sep 14, 2001
filing date -
Sep 25, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A perpendicular magnetic recording apparatus includes a perpendicular double-layer film medium including a stack of a soft magnetic backing layer and a perpendicular magnetic recording layer in which recording is performed under a condition that a recording track pitch as a total of a recording track width and a guard-band width between recording tracks is set to be 1 .mu.m or less, and a perpendicular magnetic recording head including a recording main pole, an auxiliary pole disposed at a gap having a length of five or less times the guard-band width with respect to the recording main pole, and an exciting coil.
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