Magnetic tape

Details Magnetic tape Magnetic tape

1998-03-31

2000-03-14

Resan, Stevan A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428329, 428694BA, 42869413BN, 428900, G11B 5706, G11B 5708

Patent

active

060370513

ABSTRACT:
The present invention discloses a magnetic tape for use in a magnetic recording/reproduction system having a relative speed of 15 m/s or more between a tape and a head for recording and reproducing the tape; the magnetic tape having at least one magnetic layer provided on a nonmagnetic support, the magnetic layer comprising an Al-containing ferromagnetic powder and alumina dispersed in a binder, and a backcoat layer provided on the surface of the nonmagnetic support opposite to the magnetic layer, wherein the intensity ratio between Al and Fe (Al/Fe), as measured by ESCA, in the surface of the magnetic layer is 0.15 to 0.25. The use of this magnetic tape enables improved electromagnetic characteristics and durability to be achieved at a high recording density and a high transfer speed.

REFERENCES:
patent: 4671993 (1987-06-01), Kadokura et al.
patent: 5000983 (1991-03-01), Iida et al.
patent: 5141807 (1992-08-01), Umezaki et al.
patent: 5456977 (1995-10-01), Ejiri et al.
patent: 5527603 (1996-06-01), Isobe et al.
patent: 5534361 (1996-07-01), Hisano et al.
patent: 5637390 (1997-06-01), Isobe et al.

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