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. 22, 1998
Filed:
Dec. 12, 1996
Ping-Wah Tang, Rochester, NY (US);
Stanley W Cowan, Rochester, NY (US);
David J Decker, Rochester, NY (US);
Thomas A Rosiek, Honeoye Falls, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a yellow dye-forming coupler having the formula: ##STR1## wherein X, Y, Z, W are independently selected from the group consisting of H, alkyl, aryl, halogen, alkoxy and aryloxy groups, provided that X and W may join to form a saturated ring; Each A is selected from the group consisting of halogen, alkoxy and aryloxy groups; m is an integer from 1 to 3; each B is independently selected from the group consisting of --C(O)OR.sub.2 and --NHSO.sub.2 R.sub.3 wherein R.sub.2 and R.sub.3 are independently selected from the group consisting of alkyl and aryl groups; n is an integer from 1 to 3; and R.sub.1 is a substituent group.