Master information carrier for magnetic transfer

Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media

Reexamination Certificate

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C428S848200, C428S848500, C360S016000

Reexamination Certificate

active

07105238

ABSTRACT:
A master information carrier has on its surface an irregularity pattern representing information to be magnetically transferred to a magnetic recording medium held in contact with the surface of the master information carrier. The parts of the surface of the master information carrier which is brought into contact with the magnetic recording medium are in the range of 0.3 nm to 10.0 nm in center plane mean surface roughness SRa.

REFERENCES:
patent: 2002/0034028 (2002-03-01), Nishikawa et al.
patent: 2002/0051306 (2002-05-01), Nishikawa et al.
patent: 2002/0098387 (2002-07-01), Tsubata et al.
patent: 2003/0143432 (2003-07-01), Nakamikawa et al.
patent: 63-183623 (1988-07-01), None
patent: 10-40544 (1998-02-01), None
patent: 10-269566 (1998-10-01), None
patent: 2001-14667 (2001-01-01), None

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