Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

2005-02-15

2005-02-15

Resan, Stevan A. (Department: 1773)

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

C428S328000, C428S329000, C428S336000, C428S690000, C428S690000

Reexamination Certificate

active

06855394

ABSTRACT:
A magnetic recording medium is disclosed, comprising a support having provided thereon a substantially nonmagnetic lower layer by coating a lower layer coating solution comprising a nonmagnetic powder dispersed in a binder and drying, and a layer having a thickness of from 0.01 to 0.15 μm by coating a magnetic layer coating solution comprising a ferromagnetic metal powder or a hexagonal ferrite powder dispersed in a binder, wherein the magnetic layer contains diamond particles having an average particle size of from 1/5 to 2 times the thickness of the magnetic layer in an amount of from 0.1 to 5.0 mass % based on the ferromagnetic metal powder.

REFERENCES:
patent: 6096406 (2000-08-01), Yamazaki et al.
patent: 5-298653 (1993-11-01), None
patent: 10-340445 (1998-12-01), None
patent: 2000-173038 (2000-06-01), None

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