Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2008-12-30
2010-06-15
Watko, Julie Anne (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C360S112000
Reexamination Certificate
active
07738219
ABSTRACT:
A Lorenz magnetoresistive sensor having a pair of voltage leads and a pair of current leads. The voltage leads are located at either side of one of the current leads and are separated by a distance that is substantially equal to the length of a bit to be measured. The Lorenz magnetoresistive sensor can be, for example an extraordinary magnetoresistive sensor having a quantum well structure such as a two dimensional electron gas and a shunt structure formed on an edge of the quantum well structure opposite the voltage and current leads.
REFERENCES:
patent: 7295406 (2007-11-01), Chattopadhyay et al.
patent: 2004/0129087 (2004-07-01), Rowe et al.
patent: 2006/0193088 (2006-08-01), Gurney et al.
patent: 2008/0088982 (2008-04-01), Folks et al.
patent: 01/41214 (2001-06-01), None
European Office Communication from Application No. 05105265.2-2210 mailed on May 8, 2009.
T. Zhou et al., “Extraordinary magnetoresistance in externally shunted van der Pauw plates” Applied Physics Letters, AIP, American Institute Of Physics, Melville, NY, US, vol. 78, No. 5, Jan. 29, 2001, pp. 667-669.
Boone, Jr. Thomas Dudley
Gurney Bruce Alvin
Marinero Ernesto E.
Smith Neil
Hitachi Global Storage Technologies - Netherlands B.V.
Watko Julie Anne
Zilka-Kotab, PC
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