Magnetic disk medium, reticle and magnetic recording and reproducing apparatus
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United States of America Patent
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Jun 15, 2010
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app pub date -
Jun 8, 2006
filing date -
Jun 10, 2005
priority date (Note) -
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Abstract
A magnetic disc medium according to an aspect of the present invention includes: a preamble part in a servo area of each of sectors obtained by dividing a surface of the medium in a circumference direction, the preamble part including strip-shaped patterns formed of a plurality of magnetic materials, and each of the strip-shaped patterns formed of the magnetic materials being divided by non-magnetic materials at periodic intervals.
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