US2013004661A1PendingUtilityA1
Magnetic recording medium and method of manufacturing the same
Est. expiryDec 27, 2027(~1.4 yrs left)· nominal 20-yr term from priority
Inventors:Masatoshi Sakurai
G11B 5/72G11B 5/855B82Y 10/00G11B 5/743G11B 5/82
53
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Claims
Abstract
A magnetic recording medium has recording regions including patterns of a magnetic material corresponding to servo signals and recording tracks, non-recording regions including an oxide of the magnetic material formed between the recording regions, and surface oxide films including an oxide of the magnetic material formed on surfaces of the recording regions.
Claims
exact text as granted — not AI-modified1 . A method of manufacturing a magnetic recording medium comprising: depositing a magnetic material on a substrate; forming masks on portions of the magnetic material corresponding to recording regions; oxidizing the magnetic material in portions uncovered with the masks in order to form non-recording regions together with recording regions comprising patterns of the magnetic material covered with the masks isolated by the non-recording regions; removing the masks; and oxidizing the magnetic material on surfaces of the recording regions in order to form surface oxide films comprising an oxide of the magnetic material.
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