Longitudinal magnetic recording head with reduced side fringing
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United States of America Patent
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Mar 16, 2004
Grant Date -
N/A
app pub date -
Feb 5, 2001
filing date -
Feb 4, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A longitudinal recording head for use with magnetic recording media includes first and second writes poles in which the second pole has sides that wrap around a portion of the first pole in order to reduce or eliminate side fringing fields. The wrapped around sides of the second pole have relatively small cross sections away from the air bearing surface of the recording head, and relatively large cross sections at the air bearing surface. The sides may saturate in the narrow regions away from the air bearing surface, but do not saturate in the broad regions adjacent the air bearing surface. Longitudinal recording heads incorporating the wrapped around second pole sides effectively reduce or eliminate side fringing and are capable of improved recording densities.
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