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:
Jan. 17, 1984
Filed:
May. 19, 1982
Applicant:
Inventors:
Assignee:
Kanzaki Paper Mfg. Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428411 ; 282 275 ; 427150 ; 427151 ; 428488 ; 428537 ; 428913 ;
Abstract
A heat-sensitive recording material comprised of a heat-sensitive layer on a support is disclosed. The layer comprises a colorless or pale-colored basic dye and a color developing material that, when heated, reacts with the basic dye to form a color. The color developing material is made of a compound having the general formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 independently represent hydrogen or a hydroxyl group.
Arai, Naoto. (1984). Heat-sensitive recording materials (U.S. Patent No. 4426424). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4426424
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile