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. 22, 1996
Filed:
Apr. 28, 1995
Applicant:
Inventors:
Luc R Gourlaouen, Givry, FR;
Gerard A Friour, Chalon-sur Saone, FR;
Didier J Martin, Givry, FR;
Philippe Strauel, Givry, FR;
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430567 ; 430564 ; 4304951 ;
Abstract
The present invention concerns a photographic product containing at least one light-sensitive layer consisting of a blend of silver halide emulsions. The blend of the invention is formed by at least one pure bromide emulsion, the proportion of fast emulsion grains in the blend is less than 50% compared with the total number of silver halide grains, and the proportion of slow emulsion grains in the blend is greater than 20%. The present invention makes it possible to obtain a radiation-sensitive photographic product which has improved sensitivity and granularity.