Paper having discrete regions of ferromagnetic material and process of making the same
OwnerAvery Levy, Zory Ginzburginventors
Life of this patent
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Abstract
A sheet of paper having ferrogmagnetic material integrally incorporated into discrete portions thereof. The ferromagnetic material may be disposed in specifically selected and measured positions or may be randomly disposed. The paper is formed by providing a plurality of depressions, indentations or cells in a surface thereof. Ferromagnetic particles are deposited on the surface containing the cells, depressions or indentations after which an additional layer of paper is secured to retained the particles in place.
Claims36
A method of making paper having at least one portion of ferromagnetic material formed integrally therein comprising:
- providing a sheet of paper;
- forming a plurality of depressions, indentations or cells in a first surface of said sheet of paper;
- depositing a ferromagnetic material in said plurality of depressions, indentations or cells;
- and
- securing a further layer of paper over at least the depressions, indentations or cells carrying the ferromagnetic material.
A method of making paper having at least one portion of ferromagnetic material therein comprising:
- providing a wire carrying a mask;
- positioning the mask at a predetermined point in the wet stage of paper making for creating depressions, indentations or cells in the paper that contacts the masks;
- depositing a ferromagnetic material in said depressions, indentations or cells;
- and
- securing a further layer of paper over at least the depressions, indentations or cells carrying the ferromagnetic material.
A method of making paper having at least one portion of ferromagnetic material therein comprising:
- providing a roller having raised portions;
- positioning the roller at a predetermined point for contacting a surface of the paper sheet for creating depressions, indentations or cells therein;
- depositing a ferromagnetic material in said depressions, indentations or cells;
- and
- securing a further layer of paper over at least the depressions, indentations, or cells carrying the ferromagnetic material.
A method of making paper having at least one portion of ferromagnetic material therein comprising:
- providing a roller having raised portions;
- positioning said roller at a predetermined point for grinding a surface of the paper sheet to create a plurality of depressions, indentations, or cells therein;
- depositing a ferromagnetic material in said depressions, indentations or cells;
- and
- securing a further layer of paper over at least the depressions, indentations, or cells carrying the ferromagnetic material.
A sheet of paper having a magnetic recording medium integrally incorporated in at least a portion thereof comprising:
- a plurality of depressions formed within a portion of one surface thereof;
- ferromagnetic particles disposed within said depressions;
- and
- a further layer of paper disposed over said plurality of depressions.
Dependencies are inferred from the claim text.