Patent ID: 7106555

Claim:
A helical scanning magnetic tape device comprising: a magnetic head containing a magnetic recording core including an upper core layer, a lower core layer, and a gap layer disposed between the upper core layer and the lower core layer, the magnetic recording core being used for alternately forming first and second recording tracks at a predetermined angle with respect to a magnetic tape transport direction, a recording operation being performed on the first and second recording tracks at different azimuth angles, a multiple recording area being disposed at adjacent portions of the first and second recording tracks, the multiple recording area being overwritten, wherein a medium-sliding-surface-side end surface of at least one of the upper core layer and the lower core layer has a width that defines a width of the recording tracks, wherein at least one side of the end surface is set in a longitudinal direction of the first and second recording tracks, and is inclined at an angle, which is substantially equal to the azimuth angle at which the respective first or second recording track is recorded, with respect to a core width direction, and wherein the end surface extends to a predetermined death in a gap depth direction with a shape of the end surface being maintained.