Method of forming and visualizing latent image
AssigneeEmpire Technology Development LLC
InventorAdarsh Sandhu
Life of this patent
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Abstract
A method of visualizing a latent image includes: preparing a latent image composed of a plurality of paramagnetic seeds immobilized on a base in the form of an image, and a dispersion liquid of paramagnetic colloidal particles; immersing the latent image in the dispersion liquid of paramagnetic colloidal particles; and applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles.
Claims5
An authenticity assessment method comprising:
- preparing a latent image composed of a plurality of paramagnetic seeds immobilized on a base in the form of an image, and a dispersion liquid of paramagnetic colloidal particles;
- immersing the latent image in the dispersion liquid of paramagnetic colloidal particles;
- applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles;
- and
- assessing authenticity on the basis of a visualized image.
A method of visualizing a latent image comprising:
- preparing a latent image composed of a plurality of paramagnetic seeds immobilized on a base in the form of an image, and a dispersion liquid of paramagnetic colloidal particles;
- immersing the latent image in the dispersion liquid of paramagnetic colloidal particles;
- and
- applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles.
A method of visualizing a latent image comprising;
- preparing a latent image composed of a plurality of paramagnetic seeds immobilized on a base in the form of an image, and a dispersion liquid of paramagnetic colloidal particles;
- hydrophilizing a surface of the base having the latent image thereon, after preparing the latent image and the dispersion liquid of paramagnetic colloidal particles;
- immersing the latent image in the dispersion liquid of paramagnetic colloidal particles;
- and
- applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles.
A method of reproducing recorded information comprising:
- preparing an information recording medium having a latent image composed of a plurality of paramagnetic seeds immobilized in the form of an image, and a dispersion liquid of paramagnetic colloidal particles;
- immersing the latent image in the dispersion liquid of paramagnetic colloidal particles;
- and
- applying a magnetic field to the latent image and the dispersion liquid of paramagnetic colloidal particles.
An article having an authenticity assessment unit comprising:
- a closed cell, the interior of which is observable;
- a base disposed on a bottom of the cell, the base having a latent image portion on which a plurality of paramagnetic seeds are immobilized in the form of an image;
- and
- a dispersion liquid of paramagnetic colloidal particles, the dispersion liquid being filled in the cell.
Dependencies are inferred from the claim text.