Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same
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United States of America Patent
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May 10, 2005
Issued Date -
N/A
app pub date -
Oct 28, 2004
filing date -
Feb 14, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic head having at least a main pole having a profile on a magnetic head air bearing surface composed of a first portion having a length in a cross-track direction which continuously increases from a leading edge to a trailing edge, and a second portion located on the side of the trailing edge of the first portion. A length of the second portion in the cross-track direction at the trailing edge is substantially equal to a length in the cross-track direction at the point of contact between the first and second portions. A rate of change in the length of the second portion in the cross-track direction from the leading edge to the trailing edge is different from a rate of increase in the length of the first portion in the cross-track direction.
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