EP0149281A2
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Magnetic head
Assignee: Koninklijke Philips NV
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Filing: 1984-12-19
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Granted: —
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Expires: 2004-12-19
Abstract
Abstract A magnetic head is provided having a core of a soft-magnetic material with a comparatively low saturation magnetization and layers of a soft-magnetic material having a higher saturation magnetization than the material of the core on the gap-bounding faces. In order to avoid the detrimental effects of the non-magnetic transition zones between the material of the core and the layers of soft-magnetic material, which transition zones as it were form subsidiary gaps, the layers of soft-magnetic material on the gap-bounding faces have different thicknesses.
Inventors
- 👤 Frederik Willem Gorter
- 👤 Jean-Paul Germain René Morel
- 👤 Jacobus Josephus Maria Ruigrok
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 14:13
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/265; G11B5/2652; G11B5/187; G11B5/1875
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
A magnetic head having a core of a soft-magnetic material with a comparatively low saturation magnetization, a gap between two gap-bounding faces in the core, each of said gap-bounding faces being coated with a layer of soft-magnetic material having a higher saturation magnetization than the material of the core, transition zones which are poor magnetic conductors being present between the core and the layers of soft-magnetic material, characterized in that layers of soft-magnetic material of different thicknesses are provided on the gap-bounding faces.
Claim 2
Dependent Claim
83 words
A magnetic head having a core of a soft-magnetic material with a comparatively low saturation magnetization, a gap between two gap-bounding faces in the core, each of said gap-bounding faces being coated with a layer of soft-magnetic material having a higher saturation magnetization than the material of the core, transition zones which are poor magnetic conductors being present between the core and the layers of soft-magnetic material, characterized in that layers of soft-magnetic material of different thicknesses are provided on the gap-bounding faces.
Claim 3
Dependent Claim
32 words
A magnetic head as claimed in Claim 1, characterized in that the transition zones are intermediate layers which serve for bonding the layer of soft-magnetic material to the material of the core.
Claim 4
Dependent Claim
34 words
A magnetic head as claimed in Claim 1 or 2, characterized in that the ratio of the thicknesses of the layers of soft-magnetic material on the two gap-bounding faces is between 1.15 and 2.
References Cited (Backward Citations)
No citation records indexed.
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