Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2004-12-22
2008-09-16
Miller, Brian E. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C338S03200R, C324S252000, C324S207210
Reexamination Certificate
active
07426098
ABSTRACT:
A magnetoresistive element includes a magnetoresistive film having a magnetization pinned layer whose magnetization is substantially pinned to one direction, a nonmagnetic intermediate layer, and a magnetization free layer whose magnetization is changed in direction depending on an external magnetic field, in which the magnetization pinned layer or nonmagnetic intermediate layer includes an insulator, and a pair of electrodes electrically connected to the magnetoresistive film so as to supply a sense current in a direction substantially perpendicular to a plane of the magnetoresistive film. The magnetization free layer includes a body-centered cubic layer with a body-centered cubic structure, and the thickness of the body-centered cubic layer is 2 nm or more.
REFERENCES:
patent: 5608593 (1997-03-01), Kim et al.
patent: 6080445 (2000-06-01), Sugiyama et al.
patent: 6313973 (2001-11-01), Fuke et al.
patent: 6411476 (2002-06-01), Lin et al.
patent: 6452763 (2002-09-01), Gill
patent: 6775111 (2004-08-01), Lin et al.
patent: 6784509 (2004-08-01), Yuasa et al.
patent: 6785103 (2004-08-01), Cornwell et al.
patent: 6788499 (2004-09-01), Lin et al.
patent: 6833981 (2004-12-01), Suwabe et al.
patent: 6961224 (2005-11-01), Pinarbasi
patent: 7116529 (2006-10-01), Yoshikawa et al.
patent: 7180714 (2007-02-01), Gill
patent: 7221545 (2007-05-01), Gill
patent: 2002/0048128 (2002-04-01), Kamiguchi et al.
patent: 2002/0051380 (2002-05-01), Kamiguchi et al.
patent: 2002/0150791 (2002-10-01), Yuasa et al.
patent: 2002/0151791 (2002-10-01), Nozaki et al.
patent: 2004/0021990 (2004-02-01), Koui et al.
patent: 1431651 (2003-07-01), None
patent: 11-86229 (1999-03-01), None
patent: 2003-60263 (2003-02-01), None
M. Takagishi, et al., “The Applicability of CPP-GMR Heads for Magnetic Recording”, IEEE Transactions on Magnetics, vol. 38, No. 5, Sep. 2002, pp. 2277-2282.
K. Nagasaka, et al., “Giant magnetroresistance properties of specular spin valve films in a current perpendicular to plane structure”, Journal of Applied Physics, vol. 89, No. 11, Jun. 1, 2001, pp. 6943-6945.
H. Yuasa, et al., “Output enhancement of spin-valve giant magnetoresistance in current-perpendicular-to-plane geometry”, Journal of Applied Physics, vol. 92, No. 5, Sep. 1, 2002, pp. 2646-2650.
Hideaki Fukuzawa, et al., “MR Ratio Enhancement by NOL Current-Confined-Path Structures in CPP Spin Valves”, IEEE Transactions on Magnetics, vol. 40, No. 4, Jul. 2004, pp. 2236-2238.
Fukuzawa Hideaki
Hashimoto Susumu
Iwasaki Hitoshi
Yuasa Hiromi
Kabushiki Kaisha Toshiba
Kayrish Matthew G
Miller Brian E.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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