Magnetic head and method of producing the same

Details Magnetic head and method of producing the same Magnetic head and method of producing the same

1995-10-10

1997-10-07

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Head

Core

360119, 360125, G11B 5127, G11B 5133, G11B 5187

Patent

active

056754604

ABSTRACT:
A magnetic head of the type which includes a pair of magnetic cores joined to each other through the intermediation of gap layers, with Fe-type metal magnetic thin films being arranged between the gap layers and the magnetic cores, the metal magnetic thin films being formed of a magnetic material which can be represented by the composition formula: Fe-X-M-C, with the concentration of the element X being higher in the surface portions of the metal magnetic thin films than in the other portions thereof. In the above composition formula, X represents one or two or more of the following elements: Al, Si, Cr, Mo and W, and M represents one or two or more of the following elements: Ti, V, Zr, Nb, Hf and Ta. Due to this construction, the metal magnetic thin films can contain the element X at high concentration in the surface portions thereof, which element combines with oxygen in the surface portions to generate an oxide coating, thereby providing a magnetic head excelling in corrosion resistance. When, in a magnetic head containing Al in the metal magnetic thin films, the Al is contained at higher concentration in the film surface portions, it is possible to generate an Al oxide to improve the corrosion resistance.

REFERENCES:
patent: 4788611 (1988-11-01), Kobayashi et al.
patent: 4803338 (1989-02-01), Kumasaka et al.
patent: 4881989 (1989-11-01), Yoshizawa et al.
patent: 4918555 (1990-04-01), Yoshizawa et al.
patent: 4953050 (1990-08-01), Kumura et al.
patent: 4985089 (1991-01-01), Yoshizawa et al.
patent: 5007158 (1991-04-01), Ino et al.
patent: 5019190 (1991-05-01), Sawa et al.
patent: 5020212 (1991-06-01), Michijima et al.
patent: 5028280 (1991-07-01), Ihara et al.
patent: 5049209 (1991-09-01), Sakakima et al.
patent: 5104464 (1992-04-01), Hasegawa
patent: 5164870 (1992-11-01), Kato et al.
patent: 5173823 (1992-12-01), Hasegawa
patent: 5176806 (1993-01-01), Hasegawa
patent: 5195004 (1993-03-01), Okuda et al.
patent: 5227193 (1993-07-01), Hori et al.
patent: 5244627 (1993-09-01), Katsuki

Affiliated with

Also associated with

Rating

Magnetic head and method of producing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic head and method of producing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head and method of producing the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2361916