Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1984-03-19

1986-11-25

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

360134, 360135, 360136, 427128, 427131, 428216, 428328, 428329, 428694, 428900, G11B 570

Patent

active

046248838

ABSTRACT:
A magnetic recording medium which comprises a first magnetic layer on a base and a second magnetic layer over the first magnetic layer, the second magnetic layer containing magnetic particles having an average particle length (long axis diameter) of not more than 0.35.mu. , with a coercive force of from 660 to 760 oersteds, and the ratio of the coercive force of the upper or second magnetic layer to that of the lower or first magnetic layer being 1.1/1 to 1.6/1. The resulting magnetic recording medium has excellent sensitivity and frequency characteristics over the entire frequency bands with less noise.

REFERENCES:
patent: 4200678 (1980-04-01), Pister
patent: 4246316 (1981-01-01), Aonuma
patent: 4265931 (1981-05-01), Tamai
patent: 4323621 (1982-04-01), Kober
patent: 4409281 (1983-10-01), Kitamoto
patent: 4410590 (1983-10-01), Kawahara
patent: 4439795 (1984-03-01), Kitamoto
patent: 4439796 (1984-03-01), Kitamoto
patent: 4513054 (1985-04-01), Kitamoto

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-1158166