Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-09-18
2007-09-18
Heinz, A. J. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
10304663
ABSTRACT:
A magnetoresistive sensor having two free layers with shape anisotropy induced magnetic alignment is disclosed. The magnetoresistive sensor includes a first ferromagnetic free layer having a first quiescent state magnetization direction. The magnetoresistive sensor also includes a second elongated free layer having a second quiescent state magnetization direction and positioned such that the first quiescent state magnetization direction is generally orthogonal to the second quiescent state magnetization direction. Further, a portion of the second ferromagnetic free layer overlaps a portion of the first ferromagnetic free layer proximal to an air bearing surface to form a v-shape. A nonmagnetic spacer layer is also positioned between the first ferromagnetic free layer and the second ferromagnetic free layer.
REFERENCES:
patent: 6278592 (2001-08-01), Xue et al.
patent: 6310751 (2001-10-01), Guo et al.
patent: 6449131 (2002-09-01), Guo et al.
patent: 6556388 (2003-04-01), Everitt et al.
patent: 6636389 (2003-10-01), Gill
patent: 6801411 (2004-10-01), Lederman et al.
patent: 6857180 (2005-02-01), Horng et al.
patent: 2001/0021087 (2001-09-01), Guo et al.
patent: 2002/0034056 (2002-03-01), Chen et al.
Heinonen Olle G.
Nowak Janusz J.
Pokhil Taras G.
Sapozhnikov Victor B.
Blouin Mark
Heinz A. J.
Kinney & Lange , P.A.
Seagate Technology LLC
LandOfFree
V-shape magnetic field sensor with anisotropy induced... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with V-shape magnetic field sensor with anisotropy induced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and V-shape magnetic field sensor with anisotropy induced... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3723929