WRITE HEAD WITH ROTATIONAL WRITE FIELD
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United States of America Patent
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Issued Date -
Jun 28, 2012
app pub date -
Dec 27, 2010
filing date -
Dec 27, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present disclosure describes various ways to achieve a rotational write field using a single coil. For example, a rotational write field can be achieved with a single coil by using different yoke lengths for different poles of a write element. Also described are ways to achieve a rotational write field with a single coil by varying the resistivity, saturation flux density, or pole width of the different poles of the write element of the present invention. The present disclosure also describes various ways to achieve a rotational write field using varied windings of a single coil.
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