Soft magnetic film having improved saturated magnetic flux...

Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Depositing predominantly single metal or alloy coating on...

Reexamination Certificate

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C205S119000, C205S255000

Reexamination Certificate

active

10616169

ABSTRACT:
A lower magnetic pole layer and/or an upper magnetic pole layer are formed of a CoFeα alloy in which the component ratio X of Co is 8 to 48 mass %, the component ratio Y of Fe is 50 to 90 mass %, the component ratio Z of the element α (the element α is at least one of Ni and Cr) is 2 to 20 mass %, and the equation X+Y+Z=100 mass % is satisfied. Consequently, the saturated magnetic flux density can be 2.0 T or more, and a thin-film magnetic head have a higher recording density can be manufactured

REFERENCES:
patent: 4661216 (1987-04-01), Anderson et al.
patent: 5011581 (1991-04-01), Omata
patent: 6132892 (2000-10-01), Yoshikawa et al.
patent: 6346181 (2002-02-01), Lee et al.
tai-Ping Sun et al, “Plating with Pulsed and Periodic-Reverse Current”, Metal Finishing, May 1979, pp. 33-38.
Frederick A. Lowenheim, Electroplating, McGraw-Hill Book Co., New York, 1978, pp. 376-377.

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