Perpendicular magnetic recording apparatus for improved...

Details Perpendicular magnetic recording apparatus for improved... Perpendicular magnetic recording apparatus for improved...

2005-05-03

2005-05-03

Davis, David (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

06888700

ABSTRACT:
A perpendicular magnetic recording head for improving resolution includes a read element and a magnetic flux generating element spaced apart from the read element. The magnetic flux generating element transmits a magnetic flux into a soft magnetic underlayer of a magnetic recording medium adjacent an air-bearing surface of the magnetic flux generating element. The magnetic flux transmitted to the soft magnetic underlayer flows in the soft magnetic underlayer away from an area of the soft magnetic underlayer beneath the read element.

REFERENCES:
patent: 3921217 (1975-11-01), Thompson
patent: 4385334 (1983-05-01), Yanagida
patent: 4541026 (1985-09-01), Bonin et al.
patent: 4731157 (1988-03-01), Lazzari
patent: 4751598 (1988-06-01), Hamilton
patent: 4771350 (1988-09-01), Desserre
patent: 4897749 (1990-01-01), Perlov et al.
patent: 5047884 (1991-09-01), Negishi et al.
patent: 5073836 (1991-12-01), Gill et al.
patent: RE33949 (1992-06-01), Mallary et al.
patent: 5168408 (1992-12-01), Lazzari
patent: 5196976 (1993-03-01), Lazzari
patent: 5717551 (1998-02-01), Negishi et al.
patent: 5995340 (1999-11-01), Ha
patent: 6008969 (1999-12-01), Imai et al.
D. Litvinov et al., “Micromagnetics of a Soft Underlayer”,IEEE Trans. On Magn.,vol. 36, No. 5, pp. 2483-2485 (2000).
S. Khizroev et al., “Recording Heads with Track Widths Suitable for 100 Gbit/in2Density”,IEEE Trans. On Magn., vol. 35, No. 5, pp. 2544-2546 (1999).

Affiliated with

Also associated with

Rating

Perpendicular magnetic recording apparatus for improved... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Perpendicular magnetic recording apparatus for improved..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perpendicular magnetic recording apparatus for improved... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3400808