With Inclusion Patents (Class 148/305)
  • Amorphous alloy for use in magnetic heads
    Patent number: 4743313
    Abstract: An amorphous alloy for use in magnetic heads having the following composition formula:(Fe.sub.1-a, Co.sub.a).sub.100-b (Si.sub.c,B.sub.d).sub.bwherea=0.93-0.95b=23-27 atomic %c/c+d)=0.55-0.65.Cr and Ru may be desirably added to the amorphous alloy for improving the corrosion and abrasion resistance. Further, secondary phase particles may be dispersed in the alloy matrix for improving the effective magnetic permeability, particularly, at high frequency region.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: May 10, 1988
    Assignee: Alps Electric Co., Ltd.
    Inventors: Akihiro Makino, Mikio Nakashima, Tadashi Sasaki, Koichi Mukasa