Patent ID: 9653100
Date: 2017-05-16
CPC Classifications: G11B

Claim:
1. A magnetic head for perpendicular magnetic recording, comprising: a medium facing surface configured to face a recording medium; a coil for producing a magnetic field 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 being configured to pass a magnetic flux corresponding to the magnetic field produced by the coil, and to produce a write magnetic field for use to write the data on the recording medium by means of a perpendicular magnetic recording system; a write shield formed of a magnetic material; a gap section formed of a nonmagnetic material and located between the main pole and the write shield; and a first return path section located on a front side in a direction of travel of the recording medium relative to the main pole, the first return path section connecting the write shield to a part of the main pole located away from the medium facing surface so that a first space is defined by the main pole, the gap section, the write shield, and the first return path section, the first return path section including: wherein the coil includes a first coil element extending to pass through the first space, the first coil element has a front end face facing toward the medium facing surface, at least part of the first portion of the first return path section is interposed between the medium facing surface and the front end face of the first coil element, and at least part of the second portion of the first return path section is interposed between the first portion of the first return path section and the front end face of the first coil element.