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:
Jun. 21, 1994
Filed:
Feb. 25, 1993
Toshiaki Minami, Tokyo, JP;
Toshio Kaneko, Tokyo, JP;
Jujo Paper Co., Ltd., Tokyo, JP;
Abstract
A thermal recording sheet having a thermal color developing layer containing a color developer and a colorless or pale colored basic chromogenic dye, which further contains a stabilizer of Formula (I) and a sensitizer of Formula (II) or Formula (III), thereby obtaining a high sensitivity and improved image stability: ##STR1## wherein A indicates ##STR2## R.sup.1 and R.sup.2 individually indicate hydrogen or methyl; .alpha. is 0 or an integer from 1 to 5; .beta. and .gamma. individually indicate an integer from 1 to 5; B indicates ##STR3## C and D individually indicate chlorine, bromine, methyl, methoxy, or ethoxy; and m and n individually indicate 0, 1, or 2; ##STR4##
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile