Stock material or miscellaneous articles – Magnetic recording component or stock – Magnetic head
Reexamination Certificate
2004-11-23
2008-12-02
Bernatz, Kevin M (Department: 1794)
Stock material or miscellaneous articles
Magnetic recording component or stock
Magnetic head
C428S815200, C360S110000
Reexamination Certificate
active
07459221
ABSTRACT:
In the magnetic film, projection of a magnetic pole, which is caused when a magnetic head is heated, can be restrained. The magnetic film can be applied to a magnetic head of a hard disk drive unit capable of recording data with high recording density. The magnetic film comprises: a first alloy film made of an alloy of iron (Fe) and platinum (Pt), or an alloy of iron (Fe), platinum (Pt) and other metal or metals; and a second alloy film directly layered on the first alloy film, the second alloy film made of an alloy of at least two metals selected from a group including iron (Fe), nickel (Ni) and cobalt (Co). Molar content of iron (Fe) in the first alloy film is 63-74%.
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Machine Translation of JP 07-045432 A.
Bernatz Kevin M
Fujitsu Limited
Greer Burns & Crain Ltd.
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