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:
Feb. 06, 1979
Filed:
May. 02, 1977
Applicant:
Inventors:
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
96 6 / ; 96 6 / ;
Abstract
In the processing of developed imagewise exposed silver halide photographic material with a solution having fixing ability, the fixing efficiency is improved and environmental pollution prevented by employing a solution containing bromine ions or iodine ions as the fixing agent and incorporating in said solution or in a post-bath solution, a polymer having in its molecular structure pyrrolidone nucleus units and a molecular weight of about 2,000 to 500,000.