Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2006-12-19
2010-06-29
Evans, Jefferson (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07746603
ABSTRACT:
A magnetoresistive sensor and method for forming the magnetoresistive sensor. The magnetoresistive sensor includes a first layer and an antiparallel free layer disposed on the first layer. The antiparallel free layer includes a first free layer disposed on the first layer and a first ferromagnetic coupling free layer disposed on the first free layer. The first ferromagnetic coupling layer is configured to provide increased coupling between the first free layer and an antiferromagnetic coupling layer. The antiparallel free layer also includes the antiferromagnetic coupling layer disposed on the first ferromagnetic coupling free layer, a second ferromagnetic coupling free layer disposed on the antiferromagnetic coupling layer, and a second free layer disposed on the second ferromagnetic coupling free layer. The second ferromagnetic coupling layer is configured to provide increased coupling between the second free layer and the antiferromagnetic coupling layer.
REFERENCES:
patent: 6052263 (2000-04-01), Gill
patent: 6266218 (2001-07-01), Carey et al.
patent: 6788502 (2004-09-01), Gill
patent: 2004/0061977 (2004-04-01), Freitag et al.
patent: 2004/0218311 (2004-11-01), Saito et al.
patent: 2004/0252416 (2004-12-01), Horng et al.
patent: 2005/0024792 (2005-02-01), Li et al.
patent: 2005/0141146 (2005-06-01), Pinarbasi
patent: 2005/0152077 (2005-07-01), Yuasa et al.
patent: 2005/0243479 (2005-11-01), Gill
patent: 2005/0280957 (2005-12-01), Gill
patent: 2006/0067016 (2006-03-01), Childress et al.
patent: 2008/0043376 (2008-02-01), Ohtsu et al.
patent: 2008/0158737 (2008-07-01), Kamiguchi et al.
Evans Jefferson
Hitachi Global Storage Technologies - Netherlands B.V.
Patterson & Sheridan L.L.P.
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