Magnetic recording material using plate-shaped ferromagnetic par

Details Magnetic recording material using plate-shaped ferromagnetic par Magnetic recording material using plate-shaped ferromagnetic par

1983-11-23

1985-11-12

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

252 6254, 360134, 360135, 360136, 427128, 427365, 427366, 428329, 428336, 428409, 428694, 428900, G11B 568, G11B 570

Patent

active

045528080

ABSTRACT:
A magnetic recording material is disclosed which is comprised of a single magnetic layer comprised of plate-shaped ferromagnetic particles wherein the plate-shaped ferromagnetic particles are present in greater number in the surface part of the magnetic layer than in the inner part and/or the plate-shaped ferromagnetic particles are aligned such that an average horizontal axis component of the particles with respect to the surface of magnetic layer is larger in the surface part than in the inner part. The location and alignment of the particles make is possible to increase output with short-wave recording.

REFERENCES:
patent: 3023166 (1962-02-01), Duinker
patent: 3117065 (1964-01-01), Wootten
patent: 3144520 (1964-08-01), Levin
patent: 3185775 (1965-05-01), Camras
patent: 4135016 (1979-01-01), Ogawa
patent: 4341648 (1982-07-01), Kubo
patent: 4442159 (1984-04-01), Dezawa
patent: 4486496 (1984-12-01), Dezawa

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