Perpendicular magnetic recording media with laminated soft...

Details Perpendicular magnetic recording media with laminated soft... Perpendicular magnetic recording media with laminated soft...

2005-10-27

2009-10-13

Bernatz, Kevin M. (Department: 1794)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S829000

Reexamination Certificate

active

07601443

ABSTRACT:
A recording medium including a perpendicular magnetic recording layer and a laminated SUL formed on a substrate is provided. The SUL includes an antiferromagnetic layer interposed between laminated structures including a magnetic layer, a non-magnetic layer and a magnetic layer. The layers may each have a thickness of 20 nm or less and the layers below the antiferromagnetic layer may be thinner than the layers on the antiferromagnetic layer. The laminated structures formed on and below the antiferromagnetic layer have unidirectional magnetic anisotropies set in the opposite radial direction to each other by an exchange bias. As a result, media magnetic domain noise can be diminished.

REFERENCES:
patent: 5942342 (1999-08-01), Hikosaka et al.
patent: 6890667 (2005-05-01), Lairson et al.
patent: 7217467 (2007-05-01), Arai et al.
patent: 7378164 (2008-05-01), Lairson et al.
patent: 2005/0129985 (2005-06-01), Oh et al.
patent: 59-48822 (1984-03-01), None
patent: 2001-155322 (2000-06-01), None
patent: 2002-230735 (2002-08-01), None
patent: 2002-342909 (2002-11-01), None
patent: 2004-079403 (2004-03-01), None
patent: 2004-118894 (2004-04-01), None
patent: 2004-272957 (2004-09-01), None
Machine Translation of JP 2004-118894 A.
Machine Translation of JP 2004-272957 A.

Affiliated with

Also associated with

Rating

Perpendicular magnetic recording media with laminated soft... 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 media with laminated soft..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perpendicular magnetic recording media with laminated soft... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4092712