Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2011-04-12
2011-04-12
Bernatz, Kevin M (Department: 1785)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
C427S127000, C360S131000
Reexamination Certificate
active
07923135
ABSTRACT:
A magnetic recording medium is formed by stacking in order, on a nonmagnetic base, at least an underlayer, magnetic recording layer, and protective layer. The magnetic recording layer includes a plurality of magnetic layers and an exchange-coupling control layer, and the magnetic recording medium is characterized in that a physical pattern is formed in the exchange-coupling control layer. The exchange-coupling control layer is located between the magnetic layers of the magnetic recording layer.
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Acharya, B.R., et al., “Anti-Parallel Coupled Soft Under Layers for High-Density Perpendicular Recording”, IEEE Transactions on Magnetics, vol. 40, No. 4, Jul. 2004, pp. 2383-2385.
Bernatz Kevin M
Fuji Electric Device Technology Co. Ltd.
Rossi Kimms & McDowell LLP
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