Magnetic head

Details Magnetic head Magnetic head

1997-03-14

1998-12-22

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

G11B 5193

Patent

active

058525360

ABSTRACT:
Sliding noise characteristics can be considerably improved without degrading electromagnetic conversion characteristics and abrasion resistance characteristics in a recording/reproducing operation. A depth (H) of a contact width regulating groove (21) is set to be smaller than a contact width (W) of a magnetic recording medium sliding surface (a), and is set to a predetermined value of 25 .mu.m or more and 45 .mu.m or less. A depth (H) of the contact regulating groove is set to a predetermined value of 37.+-.12 .mu.m, the contact width (W) on the magnetic recording medium sliding surface (a) is set to a predetermined value of 55.+-.6 .mu.m, and a value (R) of a corner portion of the contact width regulating groove is set to a predetermined value of 16 .mu.m or less.

REFERENCES:
patent: 4916563 (1990-04-01), Kawase
patent: 5515222 (1996-05-01), Kumagai et al.

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