Method of making a magnetic medium for longitudinal recording

Details Method of making a magnetic medium for longitudinal recording Method of making a magnetic medium for longitudinal recording

1992-09-16

1995-07-11

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Magnetic field or force utilized

427129, 427130, 427131, 427132, 427250, 427295, H01F 1002

Patent

active

054319692

ABSTRACT:
The magnetic medium includes a magnetic under image layer which may be separated from the hard magnetic recording layer by a nonmagnetic buffer layer. Virtual magnetic images induced in the magnetic image layer reduce off-track magnetization seen by the recording head. Thus, interference caused by tracks adjacent to the track being read is reduced.

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T. N. Kennedy; Magnetic Recording Disk with Buried Servo Layer; Dec. 1980; (IBM Technical Disclosure Bulletin, vol. 23, No. 7A; pp. 2949-2950.
Bruyere; "A Coupling Phenomena Between The Magnetisation of Two Ferromagnetic Thin Films Separated by a Thin Metallic Film Application to Magnetic Memories" Apr. 8, 1964.
Croll & Romankiw, Iron, Cobalt and Nickel Plating For Magnetic Applications, IBM Rel. SJ009, circa 1987, (no month avail.).

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