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:
Apr. 18, 1995
Filed:
Nov. 17, 1992
Applicant:
Inventors:
Hirokazu Shimada, Shizuoka, JP;
Akihiro Shimomura, Shizuoka, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430138 ; 430157 ; 430173 ; 430177 ; 430179 ; 430182 ;
Abstract
A diazo-type recording material comprising a support having thereon a recording layer comprising a photosensitive diazo compound enclosed in microcapsules, a coupling component which reacts with said diazo compound by heating at a basic pH to develop a color, and a 1-phenyl-3-pyrazolidone compound represented by the formula: ##STR1## wherein the substituents X, and R.sub.1 -R.sub.4 are defined in the specification.