Dynamic magnetic information storage or retrieval – Head – Plural gaps
Patent
1997-03-21
2000-06-06
Klimowicz, William
Dynamic magnetic information storage or retrieval
Head
Plural gaps
360123, 360126, G11B 5265
Patent
active
060726695
ABSTRACT:
A thin film magnetic head includes an integrally formed preconditioning gap having a width greater than the write gap width to precondition a magnetic media for the more accurate placement of magnetic transitions on a magnetic medium. The thin film magnetic head is comprised of a first extended pole piece underlying a thin pancake helically wound magnetic coil with a second pole piece aligned with the first pole piece and attached to it through the center of the coil. A third pole piece, aligned with the first two pole pieces, overlies all of the foregoing and is attached to the first pole piece at its rearward end to thereby cover the other underlying layers of this thin film structure. The single magnetic coil surrounds the second pole piece and energizes both gaps.
REFERENCES:
patent: 4672493 (1987-06-01), Schews
patent: 4825318 (1989-04-01), Hoo et al.
patent: 4908724 (1990-03-01), Jeffers
patent: 4979051 (1990-12-01), Eggebeen
patent: 4979064 (1990-12-01), Mage et al.
patent: 5315469 (1994-05-01), McNeil
"High Resolution Magnetic Recording Head", Schlaeppi, IBM TDB, vol. 6, No. 2 p. 68, Jul. 1963.
"Multigap Recording Head", Thompson, IBM TDB, vol. 12, No. 10, p. 1555, Mar. 1970.
LandOfFree
Thin film magnetic write head with preconditioning gap does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thin film magnetic write head with preconditioning gap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin film magnetic write head with preconditioning gap will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2219040