Magnetic recording medium and method for manufacturing the same, and magnetic recording reproducing apparatus
AssigneeShowa Denko K.K.
InventorMasato Fukushima
Life of this patent
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Abstract
A magnetic recording medium of the present invention includes, on a substrate (1), at least a magnetic layer (2) and a carbon protective layer (9) that covers the magnetic layer (2), wherein a convex part (7) serving as a magnetic recording area, and a concave part (6) serving as a boundary area that separates the magnetic recording area are provided on the surface of the magnetic layer (2), and a barrier layer (8) containing mainly Cr or Ti is formed between the concave part (6) serving as the boundary area and the carbon protective layer (9).
Claims14
A magnetic recording medium comprising, on a substrate, at least a magnetic layer and a carbon protective layer that covers the magnetic layer, wherein
- a convex part serving as a magnetic recording area, and a concave part serving as a boundary area that separates the magnetic recording area are provided on the surface of the magnetic layer, and
- a barrier layer containing mainly Cr or Ti is formed between the concave part serving as the boundary area and the carbon protective layer.
A method for manufacturing a magnetic recording medium, comprising the steps of:
- forming a magnetic layer on a substrate;
- forming a concave part serving as boundary area that separates a magnetic recording area, on the surface of the magnetic layer;
- forming a barrier layer containing mainly Cr or Ti at the concave part;
- and
- forming a carbon protective layer that covers the magnetic layer and the barrier layer.
Dependencies are inferred from the claim text.