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:
Nov. 04, 1997
Filed:
Dec. 02, 1996
Tetunori Matushita, Shizuoka, JP;
Hiroshi Sato, Shizuoka, JP;
Sadao Ishige, Shizuoka, JP;
Kimiatsu Nomura, Shizuoka, JP;
Mitsuyuki Tsurumi, Shizuoka, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A diazo heat-sensitive recording material having excellent raw stock storability and image storage characteristics, which comprises a support having thereon a recording layer comprising a diazo compound, a coupling component and an organic base. The diazo compound is a 4-disubstituted amino-2-alkoxybenzenediazonium salt and the coupling component is a compound represented by the following general formula: ##STR1## wherein R.sub.4, R.sub.5, R.sub.6 and R.sub.7 each represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, an alkyloxy group, an aryloxy group, an alkylthio group, an arylthio group, an acyl group, an alkoxycarbonyl group, an acyloxy group, a carbamoyl group, a sulfamoyl group, a halogen atom, a cyano group or a nitro group.