Magnetic head

Details Magnetic head Magnetic head

1987-03-17

1990-08-14

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

360125, 360126, 360127, 428692, 428900, G11B 2100

Patent

active

049486675

ABSTRACT:
A magnetic head for write and read of information, the core of which is at least in part composed of magnetic metal thin layers and non-magnetic intermediate metal oxide layers alternately laminated is provided. The metal is a cobalt base amorphous alloy or permalloy and the metal oxide is selected from SiO, Al.sub.2 O.sub.3, MgO and BaTiO.sub.3, which has a Vickers hardness of not less than 200 to less than 1,200. The use of the magnetic head does not injure a magnetic recording medium and contributes to improvement of the durability of the magnetic recording medium.

REFERENCES:
patent: 4135218 (1979-01-01), Nakamura
patent: 4436593 (1984-03-01), Osborne
patent: 4489105 (1984-12-01), Lee
patent: 4608293 (1986-08-01), Wada
patent: 4608297 (1986-08-01), Shimada
patent: 4652954 (1987-03-01), Church
patent: 4677036 (1987-06-01), Nakamura
patent: 4681813 (1987-07-01), Yamada
patent: 4695512 (1987-09-01), Hatanai
patent: 4713297 (1987-12-01), Verbunt

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