Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-10-09
2007-10-09
Castro, Angel (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
11501844
ABSTRACT:
A magnetoresistive head of a type including a magnetoresistive film arranged between a lower shield layer and an upper shield layer, wherein the lower shield layer has a non-magnetic layer adjacent to it and the lower shield layer and the upper shield layer are formed such that their separation at at least part of a boundary between the lower shield layer and the upper shield layer is larger than their separation in a vicinity of the magnetoresistive film, and an insulating film is arranged between the lower shield layer and the upper shield layer, wherein the lower shield layer and the non-magnetic layer adjacent thereto are formed such that they differ in height and there exists a difference in level at their boundary.
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Journal of Magnetism and Magnetic Materials, vol. 139 (1995), pp. L231-L234.
Journal of Applied Physics, vol. 89 (2001), pp. 6943-6945.
Kusukawa Kikuo
Meguro Kenichi
Watanabe Katsuro
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Global Storage Technologies Japan Ltd.
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