Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoshikazu Soeno0
Kazuya Shimakawa0
Mitsuru Takai0
Takahiro Suwa0
Katsumichi Tagami0
Date of Patent
October 20, 2009
Patent Application Number
11085522
Date Filed
March 22, 2005
Patent Primary Examiner
Patent abstract
In an information recording medium where respective concave parts of a magnetic layer, which is formed on at least one side e 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, the non-magnetic layers are formed so that parts thereof protrude further in a direction in which the convex parts protrude than other parts of the non-magnetic layers.
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