Annabel A Muenter

US Patent:

6416941, Jul 9, 2002

Filed:

Dec 20, 1999

Appl. No.:

09/468386

Inventors:

Kenneth J. Reed - Rochester NY
Annabel A. Muenter - Rochester NY
Sharon R. Lunt - Webster NY
David T. Southby - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 108

US Classification:

430546, 430551, 430557, 430558, 430599, 430600, 430583

Abstract:

A color photographic element comprises a support and at least one dye image forming layer unit comprising gelatin-peptized radiation-sensitive silver halide grains, a fragmentable electron donating compound; and an electron transfer agent releasing compound.

US Patent:

6428947, Aug 6, 2002

Filed:

Jan 5, 2001

Appl. No.:

09/755419

Inventors:

Sharon G. Johnston - Pittsford NY
Annabel A. Muenter - Rochester NY
Steven P. Szatynski - Rochester NY
Jerome R. Lenhard - Fairport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 146

US Classification:

430505, 430955, 430598, 430599, 430600, 430603, 430607, 430611, 430613

Abstract:

This invention comprises multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said red-sensitive or green-sensitive layers comprises a fragmentable electron donating compound of the formula: XâYâ or a compound which contains a moiety of the formula âXâYâ; wherein the speed gain deriving from addition of said compound to said layer is less than or equal to 0. 05 log sensitivity units and wherein X is an electron donor moiety, Yâ is a leaving proton H or a leaving group Y, with the proviso that if Yâ is a proton, a base, , is present in the emulsion layer, and wherein: 1) XâYâ has an oxidation potential between 0 and about 1. 4 V; 2) the oxidized form of XâYâ undergoes a bond cleavage reaction to give the radical X and the leaving fragment Yâ, and 3) the radical X has an oxidation potential -0. 7V.

US Patent:

6472134, Oct 29, 2002

Filed:

Jun 13, 2000

Appl. No.:

09/593108

Inventors:

Steven P. Szatynski - Rochester NY
James H. Reynolds - Rochester NY
Annabel A. Muenter - Rochester NY
George J. Burgmaier - Pittsford NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 7305

US Classification:

430544, 430583, 430546, 430607

Abstract:

A silver halide photographic element comprising at least one silver halide emulsion, said silver halide element further comprising an amido compound represented by Formula 1 wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; and R and R independently represents an aliphatic, aromatic or heterocyclic group, or R and R together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system; or R and R are independently a âC( O)(LINK) âINH group, or are substituted with an âNR C( O)â(LINK) âINH group, with R being defined the same as R or R , and wherein the compound of Formula I does not substantially react with oxidized developer to release INH; and a fragmentable electron donor compound of the formula XâYâ or a compound which contains a moiety of the formula âXâYâ; âwherein X is an electron donor moiety, Yâ is a leaving proton H or a leaving group Y, with the proviso that if Yâ is a proton, a base, , is covalently linked directly or indirectly to X, and wherein: 1) XâYâ has an oxidation potential between 0 and about 1. 4 V; and 2) the oxidized form of XâYâ undergoes a bond cleavage reaction to give the radical X and the leaving fragment Yâ, and optionally. 3) the radical Xâ has an oxidation potential -0. 7V.

US Patent:

6498004, Dec 24, 2002

Filed:

Dec 28, 2000

Appl. No.:

09/750855

Inventors:

Jerome R. Lenhard - Fairport NY
Annabel A. Muenter - Rochester NY
Stephen A. Godleski - Fairport NY
Paul A. Zielinski - Rochester NY
Deepak Shukla - Webster NY
Donald R. Diehl - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 108

US Classification:

430583, 430544, 430546, 430570, 430572, 430581, 430599, 430600, 430607, 430611, 430613, 548477, 548546, 548251, 548544, 548156, 548261, 548210, 558394, 560 29, 560 43, 562452

Abstract:

This invention provides a photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula (a): wherein is protective group that is eliminated during development of the photographic element, t is a timing group, m is an integer from 0 to 3, and XYâ is a fragmentable electron donor moiety in which X is an electron donor group and Yâ is a leaving proton H or a leaving group Y, with the proviso that if Yâ is a proton, a base, , is present in the emulsion or is covalently linked directly or indirectly to X, and wherein: 1) XâYâ has an oxidation potential between 0 and about 1. 4 V; 2) the oxidized form of XâYâ undergoes a bond cleavage reaction to give the radical X and the leaving fragment Yâ, and 3) the radical X has an oxidation potential -0. 7V.

US Patent:

6509144, Jan 21, 2003

Filed:

Jan 25, 1999

Appl. No.:

09/236821

Inventors:

Kenneth J. Reed - Rochester NY
Joseph P. Pepe - Penfield NY
James A. Friday - Rochester NY
Jon N. Eikenberry - Rochester NY
Yun C. Chang - Rochester NY
Annabel A. Muenter - Rochester NY
Jerome R. Lenhard - Fairport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 110

US Classification:

430567, 430569, 430600, 430572, 430574, 430577, 430578, 430580, 430581, 430583, 430586

Abstract:

This invention comprises a photographic element comprising a support and at least one blue sensitive silver halide emulsion layer containing a tabular grain silver halide emulsion, or an emulsion in which the halide content is at least 50% chloride and no more than 5% iodide, wherein the emulsion is spectrally sensitized with at least one dye providing a peak sensitization between 446 and 500 nm and at least one dye providing a peak sensitization between 400 and 445 nm and additionally sensitized with a fragmentable electron donor of the formula: XâYâ. or an electron donor which contains an âXYâ moiety; wherein X is an electron donor moiety, Yâ is a leaving proton H or a leaving group Y, with the proviso that if Yâ is H a base, , is covalently linked directly or indirectly to X. and wherein: 1) XâYâ has an oxidation potential between 0 and about 1. 4 V; and 2) the oxidized form of XâYâ fragments to give the radical X and the leaving fragment Yâ; and, optionally, 3) the radical X has an oxidation potential -0.

US Patent:

6514683, Feb 4, 2003

Filed:

Jan 5, 2001

Appl. No.:

09/755690

Inventors:

Annabel A. Muenter - Rochester NY
Steven P. Szatynski - Rochester NY
Sharon G. Johnston - Pittsford NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 108

US Classification:

430600, 430603, 430607, 430611, 430581, 430583, 430375

Abstract:

This invention comprises a photographic element comprising at least one light-sensitive silver halide emulsion layer containing a fragmentable electron donating compound of the formula: XâYâ or a compound which contains a moiety of the formula âXâYâ; wherein X is an electron donor moiety, Yâ is a leaving proton H or a leaving group Y, with the proviso that if Yâ is a proton, a base, , is present in the emulsion layer, and wherein: 1) XâYâ has an oxidation potential between 0 and about 1. 4 V; and 2) the oxidized form of XâYâ undergoes a bond cleavage reaction to give the radical X and the leaving fragment Yâ; and 3) the radical X has an oxidation potential -0. 7V; said photographic element further comprising a reductone of the Formula 2: wherein R and R are the same or different, and may represent H, alkyl, cycloalkyl, aryl, or an alkyl group with a solubilizing group such as âOH, sulfonamide, sulfamoyl, or carbamoyl, or R and R may be joined to complete a heterocyclic ring, R and R are H, OH, alkyl, aryl, cycloalkyl, or may together represent an alkylidene group, n is 1 or 2 and R is H, alkyl, aryl, or CO R where R is alkyl. In a preferred embodiment of the invention, the photographic element is a multicolor photographic element.

US Patent:

6518008, Feb 11, 2003

Filed:

Jan 25, 1999

Appl. No.:

09/236818

Inventors:

James A. Friday - Rochester NY
Roger A. Bryant - Rochester NY
Annabel A. Muenter - Rochester NY
Jerome R. Lenhard - Fairport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 108

US Classification:

430567, 430569, 430581, 430583, 430584, 430585, 430586, 430587, 430588, 430590, 430591, 430592, 430600

Abstract:

A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said silver halide emulsion layers contains a tabular grain silver halide emulsion having a halide content of at least 95% bromide and less than about 5% iodide, said iodide being substantially uniformly distributed in the silver halide grains of said emulsion, and said emulsion is sensitized with a fragmentable electron donor of the formula XâYâ or an electron donor which contains an âXYâ moiety; wherein X is an electron donor moiety, Yâ is a leaving proton H or a leaving group Y, with the proviso that if Yâ is a proton, a base, , is covalently linked directly or indirectly to X, and wherein: 1) XâYâ has an oxidation potential between 0 and about 1. 4 V; and 2) the oxidized form of XâYâ fragments to give the radical X* and the leaving fragment Yâ; âand, optionally, 3) the radical X* has an oxidation potential -0. 7V.

US Patent:

6531272, Mar 11, 2003

Filed:

Jan 25, 1999

Appl. No.:

09/236708

Inventors:

James A. Friday - Rochester NY
Joseph P. Pepe - Penfield NY
Jeffrey C. Hansen - Fairport NY
Annabel A. Muenter - Rochester NY
Jerome R. Lenhard - Fairport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 108

US Classification:

430505, 430567, 430569, 430581, 430583, 430584, 430585, 430586, 430587, 430588, 430590, 430591, 430592, 430600

Abstract:

This invention comprises a multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said layers comprises large tabular grains having an average circular diameter of greater than 2 m and contains a fragmentable electron donating compound is of the formula: XâYâ or a compound which contains a moiety of the formula âXâYâ; wherein X is an electron donor moiety, Yâ is a leaving proton H or a leaving group Y, with the proviso that if Yâ is a proton, a base, , is covalently linked directly or indirectly to X, and wherein: 1) XâYâ has an oxidation potential between 0 and about 1. 4 V; and 2) the oxidized form of XâYâ undergoes a bond cleavage reaction to give the radical X. and the leaving fragment Yâ; and, optionally, 3) the radical X.