Servo information recording method and magnetic storage apparatus
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United States of America Patent
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Jul 15, 2014
Grant Date -
May 15, 2014
app pub date -
Nov 5, 2013
filing date -
Nov 14, 2012
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Abstract
A servo information recording method continuously records servo information in a radial direction of a magnetic disk on a plurality of concentric tracks or on a single spiral track of a first recording layer that forms a magnetic layer of the magnetic disk together with a second recording layer to which data are recorded and from which data are reproduced, wherein the first recording layer has a coercivity higher than that of the second recording layer, and partially overlaps two mutually adjacent tracks when continuously recording the servo information on an entire surface of the first recording layer.
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