Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1983-09-13
1985-05-14
Robinson, Ellis P.
Stock material or miscellaneous articles
Composite
Of inorganic material
427131, 427132, 428900, 360134, 360135, 360136, G11B 564
Patent
active
045172579
ABSTRACT:
Magnetic recording media suitable for use in vertical magnetization recording systems are described. The media comprise a magnetic layer on at least one side of a substrate. The magnetic layer is made of a specific type of quaternary alloy. The alloy essentially consists of from 3 to 42 wt % of Co, from 54 to 89 wt % of Ni, from 4 to 8 wt % of P, and from 0.1 to 3.2 wt % of Zn provided that (7.2 X.sub.P +12.8) wt %.ltoreq.X.sub.Ni .ltoreq.(7.2 X.sub.P +43.2) wt % in which X.sub.P represents a content of P and X.sub.Ni represents a content of Ni, both expressed by wt %.
REFERENCES:
patent: 3993824 (1976-11-01), Shirahata
patent: 4153920 (1979-05-01), Shirahata
patent: 4309471 (1982-01-01), Suzuki
Kato Toshio
Shimizu Shigeo
Robinson Ellis P.
Victor Company of Japan Ltd.
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