Perpendicular magnetic recording medium and magnetic...

Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media

Reexamination Certificate

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C428S836200

Reexamination Certificate

active

07132176

ABSTRACT:
A perpendicular magnetic recording medium includes a magnetic recording layer stacked on a substrate and having a first perpendicular magnetic recording layer containing cobalt, and a second perpendicular magnetic recording layer mainly containing a crystalline alloy which contains a rare earth element and a transition metal.

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