Method for manufacturing magnetic recording media

Coating processes – Nonuniform coating – Deforming the base or coating or removing a portion of the...

Reexamination Certificate

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C427S127000, C427S128000, C427S129000, C427S130000, C427S131000

Reexamination Certificate

active

08034413

ABSTRACT:
A method for manufacturing discrete track media and patterned media is disclosed which enables a magnetic recording layer having excellent magnetic characteristics to be obtained without imparting damage to a crystal orientation control layer which is at the surface when forming the magnetic recording layer. The method for manufacturing magnetic recording media comprises a process of forming a soft magnetic layer on a substrate; a process of forming a first crystal orientation control layer on the soft magnetic layer; a process of providing a depression in at least a portion of the first crystal orientation control layer; a process of performing heat treatment of the first crystal orientation control layer; and a process of forming a magnetic recording layer on the first crystal orientation control layer.

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