Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-06-05
2007-06-05
Renner, Craig A. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C360S320000
Reexamination Certificate
active
10292044
ABSTRACT:
A dual-stripe element magnetroresistive read head for reading information from a magnetic tape. The read head includes a first insulating layer, a first active magnetoresistive layer formed on the first insulating layer, a second insulating layer formed on the first active magnetoresistive layer, a second active magnetoresistive layer formed on the second insulating layer, and a third insulating layer formed on the second active magnetoresistive layer. The second active magnetoresistive layer is magnetostatically coupled to the first active magnetoresistive layer. A periodic structure is formed on a surface of the first insulator layer. As the remaining layers are formed on the first insulating layer, the periodic structure is replicated throughout the read head. Thus, the periodic structure formed on the first insulator layer stabilizes both the first and second active layers via magnetic domain pinning for both layers along the edges of the periodic structure.
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Denison Edward Virgil
Kluge Herman C.
Renner Craig A.
Storage Technology Corporation
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