Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1987-03-27
1988-11-22
Lesmes, George F.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
428469, 428639, 428667, 428680, 428694, 428702, 428900, H01F 1010, H01F 1026
Patent
active
047865539
ABSTRACT:
A magnetic recording medium comprises a non-magnetic substrate and a thin magnetic film, the thin magnetic film being composed mainly of Co, Ni and at least one of Zr and Hf, and a concentration of Zr, Hf or Zr and Hf as contained in the thin magnetic film being 0.1 to 30% by atom on the basis of the total of Co and Ni, and has a considerably higher corrosion resistance than that of the conventional magnetic recording medium having a thin Co-Ni magnetic film.
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patent: 4603091 (1986-07-01), Mukusa et al.
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patent: 4610911 (1986-09-01), Opfer et al.
patent: 4707756 (1987-11-01), Futomoto et al.
Gobara Yoshio
Hayashi Masaaki
Hishiyama Sadao
Sano Makoto
Shirakura Takaaki
Atkinson William M.
Hitachi , Ltd.
Lesmes George F.
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