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:
Dec. 27, 1994
Filed:
Dec. 23, 1993
Applicant:
Inventors:
Katsuhisa Hamano, Osaka, JP;
Yutaka Nakabayashi, Osaka, JP;
Assignee:
Nitto Denko Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503216 ; 106 / ; 503201 ; 503217 ; 503225 ;
Abstract
A reversible heat-sensitive recording composition capable of repeatedly writing or erasing, and a reversible heat-sensitive recording sheet using the composition are disclosed. The reversible heat-sentitive recording composition comprising a leuco compound as a coloring agent and a pyridine derivative having at least one substituent selected from the group consisting of a carboxyl group and a phenolic hydroxyl group.