Antonelli, Terry, Stout & Kraus, LLP
Thin film magnetic head with electroplated Ni-Fe alloy thin film having small average crystal grain size range
A slider having a thin film magnetic head. The thin film magnetic head has an upper magnetic core, a lower magnetic core and a coil disposed between the upper magnetic core and the lower magnetic core. The upper magnetic core and the lower magnetic core is an electroplated thin film with an average crystal grain size smaller than 500 &aring;, and the electroplated thin film is made of Ni&#8212;Fe alloy of which Ni is 38 to 60 wt % and Fe is 40 to 62 wt %.
Hitachi, Ltd.
G G G B G G B H
G11B G11B G11B B82Y G11B G11B B82Y H01F
inventional inventional additional inventional inventional inventional inventional inventional
Kenzo Shun-ichi Takashi Hisashi Yoshiaki Masaaki Hisano Moriaki
Masuda Narumi Kawabe Takano Kita Sano Yamamoto Fuyama