Patent ID: 6813116
Filing Date: 2004-11-02
Classification: G11B

Abstract:
A magnetic head comprising at least a main pole, wherein:the profile of the main pole on a magnetic head air bearing surface is such that it is composed of a first portion whose length in the cross-track direction continuously increases from the leading edge to the trailing edge, and a second portion located on the side of the trailing edge of the first portion; and the second portion's length in the cross-track direction at the trailing edge is larger than the length thereof in the cross-track direction at the point of contact between the first and second portions; and the rate of change in the second portion's length in the cross-track direction from the leading edge to the trailing edge is different from the rate of increase in the first portion's length in the cross-track direction; and the second portion's length in the track running direction is smaller than the first portion's length in the track running direction.