Magnetic head having a laminated structure
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMitsuo Satomi, Ken Hirota, Osamu Inoue
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Abstract
Tape contact surface of a magnetic head is made of magnetic substance of multi-layered structure; interface insulation material for said multi layered structure and/or gap spacer material are made of oxides, complex oxides, nitrides and carbides of transition metal elements, IIa group elements of the periodic table and Zn; and accumulation of magnetic material from magnetic tape is prevented and output of magnetic head is stabilized.
Claims5
A magnetic head having a tape contact surface defined by a magnetic core and a gap, characterized in that said gap is filled with a gap space material and said magnetic core has a multilayered structure comprising alternate layers of a magnetic material and an interface insulation material, and
- at least one of said interface insulation material and said gap space material is substantially of one component selected from the group consisting of .alpha.-Fe.sub.2 O.sub.3, MgO-NiO, MgO-MnO, MgO-TiO.sub.2, SrO-TiO.sub.2, NiO-MnO and ZnO-Fe.sub.2 O.sub.3.
Dependencies are inferred from the claim text.