Metal treatment – Stock – Magnetic
Reexamination Certificate
2006-05-30
2006-05-30
Sheehan, John P. (Department: 1742)
Metal treatment
Stock
Magnetic
C360S125330, C420S096000
Reexamination Certificate
active
07052560
ABSTRACT:
A soft magnetic film is formed which is represented by the formula (FexNiy)aMob, in which 0.65≦x≦0.75 and x+y=1 are satisfied when x and y are on a mass percent ratio basis, and 0<b≦5 and a+b=100 are satisfied when a and b are on a mass percent basis, and by using this soft magnetic film, a lower core layer and/or an upper core layer is formed. Accordingly, a saturated magnetic flux density of 1.6 T or more and a resistivity of 40 μΩ·cm or more can be obtained, and hence a thin film magnetic head having a small loss in a high frequency signal region can be provided.
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Kanada Yoshihiro
Yazawa Hisayuki
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Sheehan John P.
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