Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2007-08-14
2009-12-01
Bernatz, Kevin M (Department: 1794)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
C428S828100, C360S131000
Reexamination Certificate
active
07625643
ABSTRACT:
A magnetic recording medium is provided with a first magnetic layer, a nonmagnetic coupling layer provided on the first magnetic layer, and a second magnetic layer provided on the nonmagnetic coupling layer. The first and second magnetic layers are exchange-coupled, and have magnetization directions which are mutually parallel in a state where no external magnetic field is applied thereto, and the first magnetic layer switches the magnetization direction thereof before the second magnetic layer in response to a recording magnetic field which switches the magnetization directions of the first and second magnetic layers.
REFERENCES:
patent: 5585986 (1996-12-01), Parkin
patent: 5851643 (1998-12-01), Honda et al.
patent: 6280813 (2001-08-01), Carey et al.
patent: 6391430 (2002-05-01), Fullerton et al.
patent: 6602612 (2003-08-01), Abarra et al.
patent: 6645646 (2003-11-01), Umeda et al.
patent: 6753101 (2004-06-01), Abarra et al.
patent: 6803117 (2004-10-01), Akimoto et al.
patent: 6881496 (2005-04-01), Okamoto
patent: 7070870 (2006-07-01), Bertero et al.
patent: 7271984 (2007-09-01), Umeda et al.
patent: 2003/0017369 (2003-01-01), Hirayama et al.
patent: 2005/0014028 (2005-01-01), Umeda et al.
patent: 1 059 629 (2000-12-01), None
patent: 1 059 629 (2000-12-01), None
patent: 1 298 648 (2003-04-01), None
patent: 1 343 147 (2003-09-01), None
patent: 07-057236 (1995-03-01), None
patent: 2001-056921 (2001-02-01), None
patent: 2001-56923 (2001-02-01), None
patent: 2001-056924 (2001-02-01), None
patent: 2001-56925 (2001-02-01), None
patent: 2003-16624 (2003-01-01), None
patent: 2003-99911 (2003-04-01), None
patent: 2005-32353 (2005-02-01), None
patent: WO 01/22407 (2001-03-01), None
patent: WO 02/45080 (2002-06-01), None
Lyberatos, A. Ju, G. van de Verrdonk, J., and Weller D., J. App. Phys. 91(4), 2002, 2236-2242.
Okamoto Iwao
Umeda Hisashi
Bernatz Kevin M
Fujitsu Limited
Greer Burns & Crain Ltd.
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