Perpendicular magnetic recording medium having a soft magnetic u

Details Perpendicular magnetic recording medium having a soft magnetic u Perpendicular magnetic recording medium having a soft magnetic u

1994-08-08

1996-12-31

Resan, Stevan A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428 653, 428694TM, 428694TR, 428900, 427130, 360135, G11B 566

Patent

active

055892620

ABSTRACT:
A perpendicular magnetic recording medium for use on a magnetic recording/reproducing apparatus which has a magnetic head for recording/reproduction includes a substrate, a magnetic recording layer having a perpendicular magnetic anisotropy, and a soft magnetic under layer interposed between the substrate and the magnetic recording layer. The soft magnetic under layer includes a mechanism for for suppressing motion of the domain walls of the soft magnetic under layer at least with respect to an external magnetic field which is smaller than a stray magnetic field in a vicinity of the magnetic head within the magnetic recording/reproducing apparatus.

REFERENCES:
patent: 3890605 (1975-06-01), Sionczewski
patent: 3965463 (1976-06-01), Chaudhari et al.
patent: 4544591 (1985-10-01), Uesaka et al.
patent: 4657819 (1987-04-01), Funaki
patent: 4692899 (1987-09-01), Lo et al.
patent: 5166613 (1992-11-01), Perry
Koikeda, Tosiaki et al "Electron-Microscopic observation of Stripe or Dense Banded Magnetic Domains in nickel rich Permalloy Films" Applied Physics Letters vol. 9 No. 9 May 1964.
Tatsumoto, Eiji et al "A New Type of Stripe Domains" Japanese Journal of Applied Physics vol. 7 p. 176 Jul. 1968.
Maffitt, K. N. "Electron Mirror Microscopy of Stripe Domains" Review of Scientific Instruments vol. 39 No. 2 Feb. 1968.
Lo, "Magnetic Properties of Ni-Fe Films Coupled with Stripe-Domain Films" IEEE Transactions on Magnetics vol. 4 No. 4 Dec. 1968.

Affiliated with

Also associated with

Rating

Perpendicular magnetic recording medium having a soft magnetic u does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1140670