Method for manufacturing magnetic recording medium
AssigneesHoya Corporation, Hoya Magnetics Singapore Pte. Ltd., HOYA Corporation USA
InventorsYoshiaki SONOBE, Teiichiro UMEZAWA, Koichi WAGO
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a magnetic recording medium includes the steps of (a) forming a perpendicular magnetic recording layer and (b) applying an ion beam to regions between tracks of the perpendicular magnetic recording layer so as to form separation regions for magnetically separating the tracks from each other. In the step (a), a continuous film layer composed of a multilayer film is formed, and CoB layers and Pd layers are laminated in the multilayer film. In the step (b), the CoB layers and the Pd layers are melted by the ion beam so as to form an alloy of metals contained in the CoB layers and the Pd layers to thereby form the separation regions.
Claims6
A method for manufacturing a magnetic recording medium comprising the steps of:
- (a) forming a magnetic recording layer;
- and
- (b) applying an ion beam to regions between tracks of the magnetic recording medium so as to form separation regions for magnetically separating the tracks from each other.
Dependencies are inferred from the claim text.