Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2006-10-10
2006-10-10
Wellington, Andrea (Department: 2653)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07119998
ABSTRACT:
An exchange coupling film including an antiferromagnetic layer and a ferromagnetic layer in contact with the antiferromagnetic layer so as to generate an exchange coupling magnetic field is provided. A PtMn alloy is used as the material of the antiferromagnetic layer. Crystal planes of the antiferromagnetic layer and the ferromagnetic layer preferentially aligned parallel to the interface are crystallographically identical and crystallographically identical axes lying in these crystal planes are oriented, at least partly, in different directions between the antiferromagnetic layer and the ferromagnetic layer. Thus, a proper order transformation occurs in the antiferromagnetic layer as a result of heat treatment and an increased exchange coupling magnetic field can be obtained.
REFERENCES:
patent: 4103315 (1978-07-01), Hempstead et al.
patent: 5315468 (1994-05-01), Lin et al.
patent: 5549978 (1996-08-01), Iwasaki et al.
patent: 5736264 (1998-04-01), Ishiwata et al.
patent: 5910868 (1999-06-01), Kurosawa et al.
patent: 5942309 (1999-08-01), Kamijo
patent: 5948550 (1999-09-01), Fujii et al.
patent: 5976713 (1999-11-01), Fuke et al.
patent: 6055135 (2000-04-01), Fukamichi et al.
patent: 6057049 (2000-05-01), Fuke et al.
patent: 6303218 (2001-10-01), Kamiguchi et al.
patent: 6338899 (2002-01-01), Fukuzawa et al.
patent: 6387548 (2002-05-01), Hasegawa et al.
patent: 2002/0008947 (2002-01-01), Hasegawa et al.
patent: 08-088118 (1996-04-01), None
patent: 08-138935 (1996-05-01), None
patent: 09-050612 (1997-02-01), None
patent: 09-069211 (1997-03-01), None
patent: 09-134510 (1997-05-01), None
patent: 10-214716 (1998-08-01), None
patent: 11-135857 (1999-05-01), None
patent: 11-191647 (1999-07-01), None
patent: 11-306521 (1999-11-01), None
patent: 11-328625 (1999-11-01), None
patent: 11-329882 (1999-11-01), None
patent: 2000-150235 (2000-05-01), None
patent: 2001-297913 (2001-10-01), None
patent: 2001-297914 (2001-10-01), None
patent: 2001-297915 (2001-10-01), None
patent: 2001-297916 (2001-10-01), None
patent: 2001-297917 (2001-10-01), None
patent: 2001-332783 (2001-11-01), None
patent: 2002-094141 (2002-03-01), None
Japanese office Action (Notifications of Reasons for Refusal) drafted Jan. 24, 2005 for corresponding JP Patent Application No. 2000-209468.
Hasegawa Naoya
Saito Masamichi
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Magee Christopher R.
Wellington Andrea
LandOfFree
Exchange coupling film and magnetoresistive element using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exchange coupling film and magnetoresistive element using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exchange coupling film and magnetoresistive element using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3642960