Magnetic recording medium including disk substrate, magnetic...

Details Magnetic recording medium including disk substrate, magnetic... Magnetic recording medium including disk substrate, magnetic...

2005-02-24

2008-10-21

Bernatz, Kevin M (Department: 1794)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S141000, C428S156000, C428S157000, C428S163000, C428S167000

Reexamination Certificate

active

07438982

ABSTRACT:
A magnetic recording medium includes at least a disk substrate, a magnetic recording layer formed with a predetermined concavo-convex pattern on the disk substrate, and a non-magnetic layer formed in concave portions of the concavo-convex pattern. Convex shapes made of a non-magnetic material are formed on the magnetic recording layer or the non-magnetic layer. Each convex shape is formed, for example, into a mountain-like shape whose upper surface width is made smaller than a width of each convex portion of the magnetic recording layer or a width of each concave portion where the non-magnetic layer6is formed.

REFERENCES:
patent: 4935278 (1990-06-01), Krounbi et al.
patent: 5626941 (1997-05-01), Ouano
patent: 5958542 (1999-09-01), Ootake et al.
patent: 6014296 (2000-01-01), Ichihara et al.
patent: 6351339 (2002-02-01), Bar-Gadda
patent: 6495240 (2002-12-01), Wada et al.
patent: 6665145 (2003-12-01), Wada
patent: 7244521 (2007-07-01), Liu et al.
patent: 2004/0170871 (2004-09-01), Pocker et al.
patent: 2005/0196650 (2005-09-01), Suwa et al.
patent: 62-047801 (1987-03-01), None
patent: 01-184717 (1989-07-01), None
patent: 05-028469 (1993-02-01), None
patent: 5-22291 (1993-03-01), None
patent: 05-073879 (1993-03-01), None
patent: 9-97419 (1997-04-01), None
patent: 2000-298822 (2000-10-01), None
patent: 2000-298823 (2000-10-01), None
patent: 2002-121051 (2002-04-01), None
patent: 2003-109210 (2003-04-01), None
U.S. Appl. No. 11/206,874, filed Aug. 19, 2005, Takai et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4016893