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:
Sep. 07, 1993
Filed:
Jan. 27, 1993
Ritsuo Mando, Sakai, JP;
Toshikazu Onishi, Amagasaki, JP;
Kanzaki Paper Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A heat-sensitive recording material comprising a substrate and a heat-sensitive recording layer disposed on said substrate, said heat-sensitive recording layer containing a colorless or light-colored basic dye and a color developer capable of causing color development upon contact with said basic dye by application of heat, characterized in that said heat-sensitive recording layer contains (i) an antioxidant comprising at least a member selected from the group consisting of the compounds represented by the following structural formula (I) and the compounds represented by the following structural formula (II), (ii) an aromatic secondary amine compound and (iii) at least a basic dye having an absorption in the near infrared region with respect to an image provided as said basic dye. ##STR1##