Patent ID: 8238060

Claim:
A magnetic head comprising: a reproducing head section including two magnetic shield layers and a magnetic reproducing device provided between the two magnetic shield layers; and a writing head section including: a main magnetic pole including a first portion, a second portion apart from the first portion, and a third portion provided between the first portion and the second portion; a shield including a first portion separated from and facing the first portion of the main magnetic pole, a second portion separated from and facing the second portion of the main magnetic pole, and a third portion provided between the first and second portions of the shield and facing the third portion of the main magnetic pole; a coil to generate an ampere magnetic field to magnetize the main magnetic pole to cause the magnetized main magnetic pole to generate a magnetic field, at least part of the coil being disposed between the third portion of the main magnetic pole and the third portion of the shield; and a laminated body being disposed between the first portion of the main magnetic pole and the first portion of the shield, the laminated body including a first magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, a distance between the second portion of the main magnetic pole and the second portion of the shield being shorter than a distance between the third portion of the main magnetic pole and the third portion of the shield, the second portion of the shield being electrically insulated from the second portion of the main magnetic pole.