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US 4,072,993 AGranted
Multi-element magnetic head
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsNoboru Nomura, Kenji Kanai, Nobuyuki Kaminaka, Norimoto Nouchi
Life of this patent
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Abstract
A multi-element magnetic head having a plurality of magnetic heads, in which a common electrode common to the coils of the individual heads is provided. By this construction the number of electrodes is reduced and also the area required for contact between leads from an external circuit and electrodes are reduced. Thus, it is made possible to reduce the head pitch of the magnetic heads.
Claims9
A multi-element magnetic head comprising a ferromagnetic material constituting a base;
- a yoke section including a plurality of thin plates made of a ferromagnetic material, each of said plates having a portion thereof in contact with said ferromagnetic base and arranged at the end thereof, said ferromagnetic base and each of said yoke sections forming a plurality of head gaps;
- a plurality of coils having first and second ends each made of a non-magnetic conductive layer and arranged adjacent each of said head gaps;
- and a common electrode layer commonly connected to the first end of each of said coils, said common electrode layer crossing the other end of each of said coils and being located on said base at a position remote from said gaps.
Dependencies are inferred from the claim text.