Floating down stream perpendicular write head shield

Details Floating down stream perpendicular write head shield Floating down stream perpendicular write head shield

2005-01-11

2005-01-11

Evans, Jefferson (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S317000, C360S125330

Reexamination Certificate

active

06842313

ABSTRACT:
A read/write head for a disk drive having a magnetoresistive (MR) read element and an inductive write element suitable for perpendicular recording of data onto a disk having a media layer in which the data is stored perpendicularly to the planar surface of the disk and a soft underlayer (SUL) underneath the media layer to provide a low reluctance return path for the magnetic recording field. The read element includes an MR sensor sandwiched between a pair of shields. The write element includes a vertically-oriented write pole and a horizontally-oriented yoke that connects the write pole and the adjacent shield of the read element. One or more pancake coils are looped around the yoke to produce a magnetic field that is focused by the tip of the write pole which is relatively smaller than the remainder of the write pole. A floating write shield is located downstream of the write pole, the shield having a throat region in close proximity to the write pole and a ramp portion sloping away from the write pole.

REFERENCES:
patent: 4253127 (1981-02-01), Kodama et al.
patent: 4317148 (1982-02-01), Chi
patent: 4423450 (1983-12-01), Hamilton
patent: 4644432 (1987-02-01), Heim
patent: 4656546 (1987-04-01), Mallary
patent: 4672493 (1987-06-01), Schewe
patent: 4748525 (1988-05-01), Perlov
patent: 5041922 (1991-08-01), Wood et al.
patent: 5075956 (1991-12-01), Das
patent: 5111352 (1992-05-01), Das et al.
patent: RE33949 (1992-06-01), Mallary et al.
patent: 5176965 (1993-01-01), Mallary
patent: 5431969 (1995-07-01), Mallary
patent: 5680283 (1997-10-01), Tanaka et al.
patent: 5801910 (1998-09-01), Mallary
patent: 5830590 (1998-11-01), Gooch et al.
patent: 5843565 (1998-12-01), Davies et al.
patent: 6101067 (2000-08-01), Matsuzono et al.
patent: 6330122 (2001-12-01), Chang et al.
patent: 6337784 (2002-01-01), Narumi et al.
patent: 6407891 (2002-06-01), Chang et al.
patent: 6618227 (2003-09-01), Yano et al.
patent: 20030235014 (2003-12-01), Yamanaka et al.

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