Patent ID: 7604880
Filing Date: 2009-10-20
Classification: G11B

Abstract:
1. An information recording medium onto which lubricant is applied, where respective concave parts of a magnetic layer, which is formed on at least one side of a substrate and in which a predetermined convex/concave pattern has been formed, are filled with non-magnetic material, and non-magnetic layers are formed by the non-magnetic material in at least partial regions of respective upper surfaces of respective convex parts of the magnetic layer, wherein the non-magnetic layers are formed so that parts of said non-magnetic layers over said convex parts of the magnetic layer protrude further in a direction in which the convex parts protrude than other parts of the non-magnetic layers over said convex parts of said magnetic layer, and wherein a protective layer comprising carbon film is formed on the non-magnetic material filled in the concave parts and on the non-magnetic layers, the lubricant being applied on a surface of the protective layer.