Longitudinal magnetic recording media and magnetic memory units

Details Longitudinal magnetic recording media and magnetic memory units Longitudinal magnetic recording media and magnetic memory units

1989-09-26

1992-09-15

Thibodeau, Paul J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428694, 428900, 428928, G11B 2300

Patent

active

051477327

ABSTRACT:
Disclosed are longitudinal recording media comprising a composite magnetic film formed on a nonmagnetic substrate directly or through a nonmagnetic underlayer, in which all of magnetic thin films constituting the composite magnetic film are magnetically connected, the composite magnetic film has a single in-plane coercivity, and the in-plane coercivity is greater than the in-plane coercivity of a longitudinal magnetically anisotropic magnetic thin film constituting a magnetic thin film nearest to an information recording side among the magnetic thin films constituting the composite film.

REFERENCES:
patent: 4645722 (1987-02-01), Katayama et al.
patent: 4745510 (1988-05-01), Watanabe et al.
patent: 4900622 (1990-02-01), Nakayama et al.

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