Title:
磁気記録媒体の製造方法および磁気記録再生装置
Document Type and Number:
Japanese Patent JP5334865
Kind Code:
B2
Abstract:
A method for producing a magnetic recording medium having a magnetically partitioned magnetic recording pattern on a surface of a nonmagnetic substrate, which comprises the following steps. Step (A) of forming a magnetic layer on a non-magnetic substrate, step (B) of forming a carbon layer on the magnetic layer, step (C) of forming a resist layer on the carbon layer, step (D) of forming a negative pattern of magnetic recording pattern on the resist layer, step (E) of removing the portions of resist layer and carbon layer in regions corresponding to the negative pattern, step (F) of removing at least a surface layer portion of the magnetic layer in the regions corresponding to the negative pattern, and optional step (G) of removing the residual resist layer and carbon layer. The produced magnetic recording medium has a recording/reproducing property equal to or better than conventional ones and exhibits a high recording density.
Inventors:
Masato Fukushima
Akira Sakawaki
Akira Yamane
Akira Sakawaki
Akira Yamane
Application Number:
JP2009544647A
Publication Date:
November 06, 2013
Filing Date:
November 28, 2008
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
G11B5/84; G11B5/65
Domestic Patent References:
| JP2007250091A | 2007-09-27 | |||
| JP2007257801A | 2007-10-04 | |||
| JP2009157983A | 2009-07-16 | |||
| JP2009158047A | 2009-07-16 |
Attorney, Agent or Firm:
Yukio Uchida