Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Reexamination Certificate
2005-05-16
2009-11-24
Sniezek, Andrew L (Department: 2627)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data in specific format
C360S077120, C360S118000, C360S121000
Reexamination Certificate
active
07623310
ABSTRACT:
Disclosed is a magnetic recording medium which enables a magnetic head to be accurately positioned even if higher-density recording of magnetic recording media is reinforced. The magnetic recording medium includes at least one servo band being magnetized in one direction and including a plurality of servo patterns being formed repeatedly along a long side of the servo band. Furthermore, each of the servo patterns includes a first magnetizing area being formed across a width of the servo band at an angle from 8 to 20 degrees with respect to the width, and a second magnetizing area being formed across the width of the servo band in non-parallel with the first magnetizing area. In addition, the first and second magnetizing areas are magnetized in a direction opposite to that of the servo band.
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FUJIFILM Corporation
Sniezek Andrew L
Sughrue & Mion, PLLC
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