Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

2007-01-02

2007-01-02

Chaney, Carol (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Binder media

C428S839000, C360S134000, C369S284000, C427S130000

Reexamination Certificate

active

10823564

ABSTRACT:
The present invention provides a magnetic recording medium comprising a magnetic layer with excellent surface smoothness, which comprises a thin film magnetic layer of thickness in a range from 0.03 to 0.30 μm that is ideal for short wavelength recording, and displays superior electromagnetic conversion characteristics. The magnetic recording medium comprises a magnetic layer containing at least a ferromagnetic powder and a binder resin on one surface of a non-magnetic support, wherein the thickness of the magnetic layer is within a range from 0.03 to 0.30 μm, and the number of concavities with a depth of 30 nm or greater in the surface of the magnetic layer is 5 per 1 cm2of surface area or less. Preferably, the value of the average depth Rv6 of the surface of the magnetic layer, as measured by a contact type surface roughness meter, is 12 nm or less.

REFERENCES:
patent: 6818298 (2004-11-01), Lowery et al.
patent: 6875495 (2005-04-01), Harasawa et al.
patent: 6890646 (2005-05-01), Meguro et al.
patent: 2001-84549 (2001-03-01), None
Translation JA 11-031322.
Translation JA 09-185822.
Translation 2001-084549.

Affiliated with

Also associated with

Rating

Magnetic recording medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic recording medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3808674