Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2005-07-25
2009-02-24
Chaney, Carol (Department: 1794)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
C428S833300, C360S135000
Reexamination Certificate
active
07494727
ABSTRACT:
A magnetic recording medium in which a recording layer is formed in a predetermined concavo-convex pattern and recording and reproducing apparatus comprising the magnetic recording medium are disclosed. The magnetic recording medium has a high areal density and high reliability since the occurrence of a crash of a magnetic head is suppressed. The magnetic recording medium comprises a recording layer formed over a substrate in a predetermined concavo-convex pattern to form recording elements as a convex portion of the concavo-convex pattern and a non-magnetic filler element filled in a concave portion between the recording elements. In this configuration, the top surface of the filler element is formed in a shape partially recessed toward the substrate side to form a groove having a width smaller than the width of the concave portion on the surface of the magnetic recording medium.
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Translation JA 2003-109210.
Shimakawa Kazuya
Suwa Takahiro
Chaney Carol
Falasco Louis
Oliff & Berridg,e PLC
TDK Corporation
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