Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

2006-04-04

2006-04-04

Resan, Stevan A. (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Binder media

C428S840600

Reexamination Certificate

active

07022424

ABSTRACT:
A magnetic recording medium comprising, in this order, a nonmagnetic support, a lower layer containing nonmagnetic powder and a binder, and a magnetic layer containing ferromagnetic powder and a binder, wherein N/Fe of the magnetic layer measured with a fluorescent X-ray apparatus is from 0.5 to 1.9 wt %, and a number of concavities having a depth of 5 to 10 nm on a surface of the magnetic layer is from 20 to 100/100 μm2.

REFERENCES:
patent: 2002/0090535 (2002-07-01), Meguro et al.
patent: 2003/0118870 (2003-06-01), Noguchi et al.
patent: 2003-030814 (2003-01-01), None
patent: 2003-123222 (2003-04-01), None

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