Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2005-08-12
2009-02-17
Rickman, Holly (Department: 1794)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
Reexamination Certificate
active
07491452
ABSTRACT:
A perpendicular magnetic recording disk has a granular Co-based ferromagnetic alloy recording layer (RL) with oxides of a selected metal (Ta or Nb) and a reduced-thickness exchange-break layer (EBL) between the RL and the soft magnetic underlayer (SUL). A perpendicular magnetic recording system that includes the disk, the write head and the read head, has an improved ability to write to the RL because of the reduced-thickness EBL.
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Do Hoa Van
Heinz Bernd
Ikeda Yoshihiro
Takano Kentaro
Xiao Min
Berthold Thomas R.
Hitachi Global Storage Technologies - Netherlands B.V.
Rickman Holly
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