Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

G - Physics

11

B

352/31

G11B 5/70 (2006.01) G11B 5/012 (2006.01) G11B 5/127 (2006.01) G11B 5/706 (2006.01) G11B 5/714 (2006.01)

Patent

CA 1248223

- 1 - Abstract: A magnetic recording medium suitable for high density recording comprising a non-magnetic substrate and a magnetic layer which contains a non-magnetic binder and ferromagnetic powder dispersed therein and is formed on the substrate. The magnetic layer has a coercive force of from 1,180 to 2,000 oersted, a residual magnetic flux density of from 1,250 to 2000 gauss and a thickness of at least 0.5 µm. This medium is effective when it is used together with a magnetic head, a part of which near a magnetic gap is made of a magnetic material having a saturation magnetic flux density of at least 7,000 gauss, and which has a magnetic gap length of 0.15 to 0.4 µm. The result is a recording medium and system suitable for high density recording and a good S/N ratio.

491140

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