Recording medium
AssigneeTagit - Eas LTD
InventorsVladimir MANOV, Mario FUSE
Life of this patent
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Abstract
A recording medium is provided, such as paper, secured by magnetic microwires. The recording medium comprises: a pulp structure formed by pulp fibers, said pulp structure carrying microwires having a metal core of a predetermined material composition, and an insulating layer coating on said metal core; and at least one coating layer on at least one side of said pulp structure. The pulp structure is a single-layer structure with the microwires fully embedded in said single layer, the microwires having cross-sectional dimensions approximately equal to cross-sectional dimensions of the pulp fibers.
Claims21
A recording medium, comprising:
- a pulp structure formed by pulp fibers, said pulp structure carrying microwires having a metal core of a predetermined material composition, and an insulating layer coating on said metal core;
- at least one coating layer on at least one side of said pulp structure;
- wherein said microwires have the metal core of a cross-sectional dimension not exceeding 15 μm and length substantially not exceeding 10 mm, the pulp structure comprising the pulp fibers and the microwires being a single-layer structure with said microwires fully embedded in said single layer and being arranged with desirably high density in said layer.
(canceled)
A soft-magnetic microwire for use in a recording medium, the microwire having a metal core of a predetermined material composition, and an insulating coating on said metal core, wherein the metal core is Co—Fe—Si—B—Cr alloy having a magnetic coercive force less than 60 A/m, a large Barkhausen jump, and nearly zero or negative magnetostriction, a diameter of the metal core being in a range of 5-15 μm, and a thickness of the insulating coating not exceeding 3 μm.
Dependencies are inferred from the claim text.