Antonelli, Terry, Stout & Kraus, LLP
Thin film magnetic head with Ni-Fe alloy thin film
 A magnetic film having a high saturation magnetic flux density larger than 1.5 T and a resistivity larger than 40 .mu..OMEGA..cndot.cm is fabricated through an electroplating method using (40-60)Ni-Fe and by adding Co, Mo, Cr, B, In, Pd or the like to the (40-60)Ni-Fe. Thereby, it is possible to obtain a recording head capable of performing sufficient recording in a high frequency range and to obtain a disk storage system with a high recording density which has a transfer rate higher than 15 MB/s, a recording frequency higher than 45 MHz and a rotating speed of a magnetic disk higher than 4000 rpm. 
Hitachi, Ltd.
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H01F G11B G11B G11B B82Y G11B B82Y G11B
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Moriaki Kenzo Shun-ichi Hisano Yoshiaki Takashi Masaaki Hisashi
Fuyama Masuda Narumi Yamamoto Kita Kawabe Sano Takano