Magnetic recording medium having a substrate containing magnetic powder
AssigneeKao Corporation
InventorsAkira Ishikawa, Hidehiko Nakayama, Kazutaka Yamashita
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Abstract
Disclosed is a magnetic recording medium comprising a magnetic support 1 containing a magnetic powder, and at least a nonmagnetic layer 2 provided on the magnetic support 1 and a magnetic layer 3 provided on the nonmagnetic layer 2. The magnetic powder comprises a ferromagnetic powder, preferably a powder of soft magnetic materials and/or a powder of iron oxide with low remanent induction. The medium is suitable for high-density recording, especially exhibiting an excellent output characteristic.
Claims6
A magnetic recording medium comprising a magnetic support containing a magnetic powder, and at least a nonmagnetic layer provided on the magnetic support and a magnetic layer provided on the nonmagnetic layer, which is characterized in that the magnetic layer has a thickness of from 0.05 to 1.5 .mu.m, the nonmagnetic layer has a thickness of from 0.5 to 4 .mu.m and the magnetic layer has a coercive force of from 1300 to 2500 Oe.
Dependencies are inferred from the claim text.