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Title:
METHOD FOR PRODUCING MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING AND REPRODUCING DEVICE, AND MAGNETIC RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP2010020844
Kind Code:
A
Abstract:

To provide a method for producing a magnetic recording medium which is nearly free from contamination of a magnetic layer and includes excellent magnetic separation properties of a magnetic recording pattern.

In the method for producing the magnetic recording medium 30 having the magnetic recording pattern 4b which is magnetically separated, after laminating at least a magnetic layer 6 and a carbon protective layer 5 on a non-magnetic substrate 1 in this order, the surface where the carbon protective layer 5 is formed is partially irradiated with a reactive plasma including carbon and a halogen or reactive ions which are generated in the reactive plasma, for forming a halogenated carbon protective layer 5a wherein a part of the carbon protective layer 5 is halogenated, and forming the magnetic recording pattern 4b wherein a part of the magnetic layer 6 is modified to be magnetically separated.


Inventors:
FUKUSHIMA MASATO
SAKAWAKI AKIRA
Application Number:
JP2008180695A
Publication Date:
January 28, 2010
Filing Date:
July 10, 2008
Export Citation:
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Assignee:
SHOWA DENKO KK
International Classes:
G11B5/84; G11B5/65; G11B5/72; G11B5/82; G11B5/851
Domestic Patent References:
JP2002359138A2002-12-13
JP2008052860A2008-03-06
JP2006309841A2006-11-09
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama