Coating processes – Coating by vapor – gas – or smoke – Carbon or carbide coating
Reexamination Certificate
2011-05-17
2011-05-17
Turocy, David (Department: 1715)
Coating processes
Coating by vapor, gas, or smoke
Carbon or carbide coating
C427S248100, C427S249100, C427S569000, C427S131000, C427S906000
Reexamination Certificate
active
07943193
ABSTRACT:
Embodiments of the invention provide a magnetic recording medium superior in terms magnetic head flying performance, abrasion resistant reliability and corrosion resistance and a method for manufacturing the same. In one embodiment, method for manufacturing a magnetic recording medium, comprising forming at least an adhesion layer, a soft magnetic layer, a granular magnetic film and a diamond-like carbon (DLC) protective film on a nonmagnetic substrate. While the DLC protective film layer to protect the granular magnetic layer of the magnetic recording medium is formed, hydrocarbon gas is mixed with hydrogen gas and a bias voltage is applied to the substrate.
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Endou Naoto
Fujimaki Shigehiko
Matsumoto Hiroyuki
Ono Toshinori
Hitachi Global Storage Technologies - Netherlands B.V.
Turocy David
Zilka-Kotab, PC
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