Coating processes – Magnetic base or coating – Magnetic coating
Reexamination Certificate
2007-05-08
2007-05-08
Chaney, Carol (Department: 1773)
Coating processes
Magnetic base or coating
Magnetic coating
C427S132000, C428S829000, C428S827000, C360S135000
Reexamination Certificate
active
11367422
ABSTRACT:
A perpendicular magnetic recording disk is provided. The perpendicular magnetic recording disk includes an underlayer between a substrate and a perpendicular magnetic recording layer for inducing perpendicular orientation of the perpendicular magnetic recording layer, the perpendicular magnetic recording layer having a thickness in the range where the ratio of perpendicular coercivity Hc to maximum perpendicular coercivity Ho decreases with reduced thickness of the perpendicular magnetic recording layer.
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Buchanan & Ingersoll & Rooney PC
Chaney Carol
de Falasco Louis
Samsung Electronics Co,. Ltd.
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