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.
Patent No.:
Date of Patent:
Aug. 29, 1989
Filed:
Jun. 22, 1988
Applicant:
Inventors:
Assignee:
Jujo Paper Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503211 ; 427150 ; 428913 ; 428914 ; 503216 ; 503217 ; 503221 ; 503225 ;
Abstract
A heat-sensitive recording material comprises a support and a color-developing layer having a particular saturated higher fatty acid iron salt, a particular polyvalent phenolic derivative and a colorless leuco dyestuff. The heat-sensitive recording material of the present invention provides both a superior image contrast and a high stability of developed image against oily substances and solvents.