Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle
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United States of America Patent
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Jun 9, 2009
Grant Date -
Jun 22, 2006
app pub date -
Feb 16, 2006
filing date -
Aug 9, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A magnetic disk apparatus including: a disk holding data as magnetic information on a magnetic recording film; a head to perform writing and reading of the magnetic information; a rotary actuator to move the head in a radial direction of the disk; plural heat elements in the head to locally heat the disk; a write element in the head to apply a magnetic field to the disk; and means for selecting at least one heat element from the plural heat elements, wherein the means for selecting the heat element selects at least one heat element from the plural heat elements so as to bring a center line of an area heated by the heat element and a center line of the position of the magnetic field generated by the write element into approximate correspondence, in correspondence with a relative angle between the head and a direction of movement of the disk.
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