Patent ID: 8780497

Claim:
A magnetic head for perpendicular magnetic recording, comprising: a medium facing surface that faces a recording medium; first and second coils that produce magnetic fields corresponding to data to be written on the recording medium; a main pole having an end face located in the medium facing surface, the main pole allowing magnetic fluxes that correspond to the magnetic fields produced by the first and second coils to pass, and producing a write magnetic field for writing the data on the recording medium by means of a perpendicular magnetic recording system; a write shield made of a magnetic material and having an end face located in the medium facing surface; a gap part made of a nonmagnetic material and interposed between the main pole and the write shield; a first return path section made of a magnetic material and located on a front side in a direction of travel of the recording medium relative to the main pole; and a core part made of a magnetic material and located on the front side in the direction of travel of the recording medium relative to the main pole, wherein: the end face of the write shield includes a first end face portion located on the front side in the direction of travel of the recording medium relative to the end face of the main pole; the first return path section includes: a yoke part that is magnetically connected to the write shield; and a coupling part that is located away from the medium facing surface and magnetically couples the yoke part and the main pole to each other; the main pole, the gap part, the write shield, the yoke part, and the coupling part form a first space enclosed by these components; the first coil is located on the front side in the direction of travel of the recording medium relative to the main pole and wound around the coupling part, part of the first coil passing through the first space; the core part is located farther from the medium facing surface than is the coupling part, and is magnetically connected to the main pole; the entire core part is spaced apart from the entire coupling part in a direction extending perpendicular to the medium facing surface; and the second coil is located on the front side in the direction of travel of the recording medium relative to the main pole and wound around the core part.