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:
Dec. 24, 1991
Filed:
Jun. 26, 1990
Applicant:
Inventors:
Junichi Yamanouchi, Kanagawa, JP;
Yukio Karino, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03L / ;
U.S. Cl.
CPC ...
430213 ; 430216 ; 430941 ; 430214 ;
Abstract
A diffusion transfer photographic element wherein there is included at least one layer which contains a water based polymer dispersion obtained by adding at least one ethylenic unsaturated monomer which contains a sulfinic acid group to a polymer dispersion which contains repeating units which have at least one quaternary ammonium salt and carrying out a polymerization.