Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-08-07
2007-08-07
Chen, Tianjie (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
10746045
ABSTRACT:
A magnetic head has a base, and a magneto-resistive device supported by the base. The magneto-resistive device includes a magneto-resistive layer formed on one surface side of the base, and a first film. The first film is formed to be in contact with an effective region effectively involved in detection of magnetism in the magneto-resistive layer on both sides or one side of the effective region in a track width direction without overlapping with the effective region. The track width direction is substantially parallel to a film surface of the magneto-resistive layer. The first film is a single-layer film or a multiple-layer film. The first film includes a soft magnetic layer which does not form part of a layer for applying a biasing magnetic field to the free layer. The soft magnetic layer contributes to a reduction in side reading.
REFERENCES:
patent: 6344955 (2002-02-01), Sato et al.
patent: 6381107 (2002-04-01), Redon et al.
patent: 6545848 (2003-04-01), Terunuma
patent: 7057865 (2006-06-01), Mao et al.
patent: 2001/0012188 (2001-08-01), Hasegawa et al.
patent: 2002/0030947 (2002-03-01), Chen et al.
patent: 2003/0174446 (2003-09-01), Hasegawa
patent: 2003/0202295 (2003-10-01), Wang et al.
patent: A 11-175928 (1999-07-01), None
patent: A 2001-68759 (2001-03-01), None
patent: A 2003-264324 (2003-09-01), None
patent: A 2004-030881 (2004-01-01), None
patent: WO 02/23540 (2002-03-01), None
Nakashio et al, “Longitudinal bias method using a long distance exchange coupling field in tunnel magnetoresistance junctions”, Journal of Applied Physics, vol. 89, No. 11, Jun. 1, 2001.
Kagami Takeo
Kuwashima Tetsuya
Chen Tianjie
TDK Corporation
LandOfFree
Magnetic head, head suspension assembly and magnetic disk... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic head, head suspension assembly and magnetic disk..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head, head suspension assembly and magnetic disk... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3831511