Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING AND PLAYBACK DEVICE
Document Type and Number:
Japanese Patent JP2011129210
Kind Code:
A
Abstract:

To provide a method for manufacturing a magnetic recording medium, with which a smoothing process of a magnetic layer which has a sharp magnetic recording pattern is conducted at a high speed.

The method for manufacturing the magnetic recording medium includes a step for forming a magnetic layer 2 on a nonmagnetic substrate 1; a step for forming a carbon mask layer 20 on the magnetic layer 2; a step for forming a resist release layer 21 on the carbon mask layer 20; a step for forming a resist layer 3, which is patterned by a shape corresponding to the magnetic recording pattern on the resist release layer 21; a step for partially removing the resist release layer 21, the carbon mask layer 20 and the magnetic layer 2 by using the resist layer 3 as a mask; a step for forming a nonmagnetic layer 4, which covers a surface from which the magnetic layer 2 has been removed, and which buries at least a part of the resist release layer 21; and a step for subjecting the nonmagnetic layer 4 to grind processing, until the magnetic layer 2 is exposed.


Inventors:
FUKUSHIMA MASATO
Application Number:
JP2009287681A
Publication Date:
June 30, 2011
Filing Date:
December 18, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SHOWA DENKO KK
International Classes:
G11B5/84; G11B5/855
Domestic Patent References:
JP2009295260A2009-12-17
JP2007317310A2007-12-06
JP2004295989A2004-10-21
JP2008287762A2008-11-27
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama