The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 30, 1999

Filed:

May. 28, 1997
Applicant:
Inventors:

Eisaku Katoh, Hino, JP;

Shuji Kida, Hino, JP;

Osamu Hatano, Hino, JP;

Kenzo Nakazawa, Hino, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430138 ; 503205 ; 503214 ; 430337 ; 430338 ;
Abstract

A thermographic material is disclosed which comprises a support and provided thereon, a recording layer containing a photolytic free radical generating agent capable of providing a free radical on absorption of light, a dye decolored by the free radical, and an anti-decolorizing agent, the photolytic free radical generating agent and dye being contained in a microcapsule in the recording layer, and the anti-decolorizing agent being present outside the microcapsule in the recording layer, wherein an image is formed by imagewise heating the thermographic material to mix the anti-decolorizing agent with the photolytic free radical generating agent and the dye to form a latent image, and then exposing the heated material to light which the photolytic free radical generating agent absorbs, so that the dye at the latent image portions is not decolored and the dye at portions other than the latent image portions is decolored.


Find Patent Forward Citations

Katoh, Eisaku. (1999). Thermographic material and recording method (U.S. Patent No. 5994021). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5994021

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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