Patent ID: 6304419
Filing Date: 2001-10-16
Classification: G11B

Abstract:
A magnetic head device comprising a magnetic head element including:a slider;first and second rails provided on the slider, the first and second rails protruding toward a recording medium, extending in a tangential direction of a track of the recording medium and parallel with each other;a first head chip for recording and reproducing data in a state of being kept in contact with a recording surface of the recording medium and in a first recording density, said first head chip being provided substantially in the central position of the first rail as viewed in the tangential direction of the track; anda second head chip for recording and reproducing data in a state of being levitated from the recording surface of the recording medium and in a second recording density greater than the first recording density, said second head chip being provided in a position on the rear side of the second rail with respect to the tangential direction of the track;wherein the width of the second rail of the magnetic head element is narrower than that of the first rail thereof.