Magnetic recording medium having a ferromagnetic thin film in wh

Details Magnetic recording medium having a ferromagnetic thin film in wh Magnetic recording medium having a ferromagnetic thin film in wh

1995-02-28

1996-10-29

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428336, 428694T, 428694TM, 428900, G11B 566

Patent

active

055695230

ABSTRACT:
A magnetic recording medium fabrication device includes a cooling drum around which a substrate runs while being cooled thereby, an ion gun arranged upstream to a vapor deposition station for kicking out particles absorbed on the plane of the substrate, a cooling body arranged between the cooling drum and ion gun for absorbing kicked out particles and a vapor deposition means for depositing a magnetic layer on the substrate at the vapor deposition station. The magnetic particles forming the magnetic layer that have residual magnetization vectors within .+-.10.degree. of the easy axis direction including the magnetic anisotropy of the medium are greater than or equal to 70% and less than or equal to 90% of the total amount of magnetic particles.

REFERENCES:
patent: 5202149 (1993-04-01), Ishida et al.
patent: 5418059 (1995-05-01), Sugita et al.
patent: 5451427 (1995-09-01), Takahashi et al.
patent: 5458914 (1995-10-01), Tohma et al.

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