Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1997-06-05

1999-04-20

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428329, 428336, 428694BA, 428900, G11B 5706

Patent

active

058957081

ABSTRACT:
There is disclosed a magnetic recording medium which are not only excellent in chemical and magnetic stability, durability and traveling reliability but also has a good time index function. The magnetic recording medium according to the present invention includes a non-magnetic substrate and a magnetic layer formed on the non-substrate, the magnetic layer being composed mainly of .gamma.--Fe.sub.2 O.sub.3 and having a coercive force of 25 to 33 KA/m, a residual magnetic flux density of not less than 130 mT and a thickness of 1.5 to 2.0 .mu.m, wherein the magnetic recording medium has a total thickness of not more than 6 .mu.m, and is capable of recording thereon and/or reproducing therefrom a low frequency signal.

REFERENCES:
patent: 4075384 (1978-02-01), Suzuki et al.
patent: 4463034 (1984-07-01), Tokunaga et al.
patent: 4722862 (1988-02-01), Ogawa et al.

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