Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

2005-03-18

2009-11-10

Bernatz, Kevin M. (Department: 1794)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S848500, C360S135000

Reexamination Certificate

active

07615292

ABSTRACT:
A magnetic recording medium having a recording layer formed in a concavo-convex pattern, which can allow a head to have stable flying characteristics. The recording layer is formed in a concavo-convex pattern, and concave portions of the concavo-convex pattern of the recording layer are filled with a non-magnetic material. The relationship of S≦3.6×R holds, when R represents a concavo-convex ratio obtained by dividing an area of convex portions in a surface by an area of the concave portions in the surface, and S represents a difference in height between a concavity and a convexity of the surface. In the magnetic recording medium, an arithmetical mean deviation of the assessed profile of the surface is limited to 0.3 nm or more.

REFERENCES:
patent: 5766718 (1998-06-01), Matsuda et al.
patent: 6014296 (2000-01-01), Ichihara et al.
patent: 6495240 (2002-12-01), Wada et al.
patent: 6665145 (2003-12-01), Wada
patent: 6730421 (2004-05-01), Kirino et al.
patent: 2005/0196650 (2005-09-01), Suwa et al.
patent: 2005/0199581 (2005-09-01), Suwa et al.
patent: A-07-210863 (1995-08-01), None
patent: A-09-097419 (1997-04-01), None
patent: A-11-161943 (1999-06-01), None
patent: A-2000-195042 (2000-07-01), None
patent: A-2000-298822 (2000-10-01), None
patent: WO 00/68941 (2000-05-01), None

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