Stock material or miscellaneous articles – Magnetic recording component or stock – Magnetic head
Reexamination Certificate
2006-11-07
2006-11-07
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
Magnetic recording component or stock
Magnetic head
C428S816000, C360S324100
Reexamination Certificate
active
07132175
ABSTRACT:
The present invention provides a CPP-type spin-valve magnetic detecting element permitting a decrease in an effective element area even with a large optical element area. A current limiting layer having an insulating portion and a conductive portion is formed in a free magnetic layer to narrow a sensing current and decrease diffusion of the sensing current. Also, the current density of the sensing current flowing through the free magnetic layer can be securely locally increased. Therefore, even when the optical element area of the free magnetic layer in parallel to the film plane is 0.01 μm2or more, the effective element area can be securely decreased, and a CPP-type magnetic detecting element producing large ΔR and high reproduction output can easily be formed.
REFERENCES:
patent: 6280813 (2001-08-01), Carey et al.
patent: 6462919 (2002-10-01), Mack et al.
patent: 6495275 (2002-12-01), Kamiguchi et al.
patent: 6544893 (2003-04-01), Eto
patent: 6594100 (2003-07-01), Carey et al.
patent: 6602612 (2003-08-01), Abarra et al.
patent: 6707649 (2004-03-01), Hasegawa et al.
patent: 6828039 (2004-12-01), Sugawara
patent: 2002/0051330 (2002-05-01), Van der Heijden et al.
patent: 2002/0054461 (2002-05-01), Fujiwara et al.
patent: 2002/0097538 (2002-07-01), Seyama et al.
patent: 2002/0135954 (2002-09-01), Yoshikawa et al.
patent: 2002/0135956 (2002-09-01), Hasegawa et al.
patent: 2002/0191451 (2002-12-01), Kishi et al.
patent: 2003/0026049 (2003-02-01), Gill
patent: 2003/0206384 (2003-11-01), Hoshiya et al.
patent: 2004/0052008 (2004-03-01), Sugawara
patent: 2004/0246634 (2004-12-01), Yuasa et al.
patent: 2001-56924 (2001-02-01), None
patent: 2001-155313 (2001-06-01), None
patent: 2001-256617 (2001-09-01), None
patent: 2001-273613 (2001-10-01), None
patent: 2001-291214 (2001-10-01), None
Derwent Abs. Translation of JP 2003-008108-A (Derwent Acc. No. 2003-090737).
Hasegawa Naoya
Saito Masamichi
Alps Electric Co. ,Ltd.
Bernatz Kevin M.
Brinks Hofer Gilson & Lione
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