Patent ID: 8329249

Claim:
A method of manufacturing a magnetic recording medium in which magnetic portions made of a magnetic material are separated by a non-magnetic material, the method comprising: forming a magnetic film for forming a recording layer; forming a resist on a portion to be formed by the magnetic material in a data region and on a portion to be formed by the magnetic material in a servo region, the resist controlling permeation of ions that change a coercive force of the magnetic film so that arrival ratios of ions arriving at the portions differ from each other; and applying the ions on the magnetic film on which the resist is formed from a plurality of dents on the resist and forming impurities and faulty portions in servo patterns so that pinning sites that prohibit movement of a domain wall are formed, wherein, in forming the resist, the plurality of dents are scattered over a surface of the resist opposite to a surface in contact with the magnetic film, and are formed shallower than a maximum thickness of the resist, wherein the servo patterns restrain a magnetic flux in a direction vertical to a surface of the magnetic recording medium with the pinning sites, thereby being stably magnetized in the direction vertical to the surface of the magnetic recording medium.