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:
Oct. 20, 1992
Filed:
Aug. 05, 1991
Applicant:
Inventor:
Tomoyuki Koide, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03K / ;
U.S. Cl.
CPC ...
430203 ; 430223 ; 430264 ; 430607 ;
Abstract
A heat-developable light-sensitive material is disclosed, comprising a support having thereon at least a surface latent image type silver halide, a binder, an electron transfer agent or a precursor thereof, an electron donor, a reducible dye providing compound capable of releasing a diffusible dye upon being reduced with the electron donor and a hydrazine derivative. The heat-developable light-sensitive material can provide positive images having a sufficiently high image density and a low minimum density in a short period of developing time.