Kenneth J Lushington

6649330, Nov 18, 2003

Dec 28, 2001

10/033517

Joseph F. Bringley - Rochester NY
Kenneth J. Lushington - Rochester NY
Tiecheng A. Qiao - Webster NY
James S. Honan - Spencerport NY

Eastman Kodak Company - Rochester NY

G03C 1295

430414, 430415, 430416, 430447, 430550, 430605, 430617, 430955

In accordance with one embodiment of the invention, a photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein sequestered silver ions are incorporated into at least one hydrophilic colloid layer in the form of a silver ion containing material which sequesters silver ions prior to photographic processing and releases silver ions upon exposure to photographic processing solutions. Method for preparing and processing such photographic element are also described. In accordance with particular embodiments of the invention, the silver ion containing material comprises a silver ion-exchanged zeolite material or an intercalation composition comprising a layered host material having silver ions inserted as guest ions between the layers of the host material. The invention provides novel photographic materials and a method of incorporating silver ions directly into a photographic imaging element with improved stability and keeping response. The incorporation of silver ion containing materials into a photographic element in accordance with the invention enables increased upper scale density without excessive build-up of fog in the system.

6756188, Jun 29, 2004

Sep 16, 2002

10/244270

John E. Keevert - Rochester NY
Stephen P. Singer - Spencerport NY
Kenneth J. Reed - Rochester NY
Kenneth J. Lushington - Rochester NY
Mary C. Brick - Webster NY
James A. Friday - Rochester NY

Eastman Kodak Company - Rochester NY

G03C 746

430377, 430505, 430506, 430544, 430549, 430555, 430955

This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers further comprising, an electron transfer agent releasing compound represented by the formula (I): wherein: CAR is a carrier moiety which is capable of releasing â(L) -ETA on reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1 or 2; and ETA is a releasable 1-aryl-3-pyrazolidinone electron transfer agent having a calculated log partition coefficient (c log P) greater than or equal to 2. 40 and the total sum of the Hammett sigma(para) values of the substituents on the 1-aryl ring is 0. 51 or less, the ETA being bonded to L or CAR through either the nitrogen atom in the 2-position or the oxygen attached to the 3-position of the pyrazolidinone ring; and a development accelerator releasing compound represented by the formula (II): wherein: CAR is a carrier moiety which is capable of releasing â(SAM)âNX âNX X on reaction with oxidized developing agent; SAM is a silver absorbable moiety attached to the carrier moiety and is released on reaction with oxidized development agent; and âNX âNX X is a hydrazine group wherein X , X and X are individually hydrogen or a substituent chosen from alkyl, aryl, carbonyl or sulfonyl groups with the proviso that at least one of X , X and X is hydrogen.

6974663, Dec 13, 2005

Dec 21, 2001

10/036669

Joseph F. Bringley - Rochester NY, US
Krishnamohan Sharma - Rochester NY, US
Kenneth J. Lushington - Rochester NY, US

Eastman Kodak Company - Rochester NY

G03C001/08
G03C007/26
G03C007/32

430546, 430505, 430543, 430544, 430559, 430551, 430566, 430570, 430597, 430590, 430599, 430606, 430607, 430631

A photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein a photographically useful compound is incorporated into at least one hydrophilic colloid layer in the form of an intercalation composition comprising a layered host material having molecules of the photographically useful compound inserted as guest molecules between the layers of the host material. The invention provide novels materials and a method of incorporating active chemistry compounds such as developers or development inhibitors directly into a photographic imaging element with improved stability and keeping response versus known methods for incorporating active chemistry compounds.

57597618, Jun 2, 1998

Jun 4, 1997

8/868652

Kenneth J. Lushington - Rochester NY
Henry J. Gysling - Rochester NY

Eastman Kodak Company - Rochester NY

G03C 109

430605

The invention is generally accomplished providing a silver halide emulsion comprising silver halide grains and a gold compound represented by Formula I: {AuS. sub. 2 X}. sub. n wherein X is PR. sub. 2 (dithiophosphinates), P(OR). sub. 2 (dithiophosphates), COR (xanthates), CNR. sub. 2 (dithiocarbamates), CR (dithiocarboxylates) R is alkyl or aryl n=1-6.

53004175, Apr 5, 1994

Dec 10, 1992

7/989750

Kenneth J. Lushington - Rochester NY
Richard P. Szajewski - Rochester NY
Kevin M. O'Connor - Webster NY

Eastman Kodak Company - Rochester NY

G03C 176

430536

A light sensitive photographic element is disclosed having a support bearing at least one light sensitive silver halide emulsion layer, an overcoat layer, and at least one non-light sensitive stress absorbing layer between the emulsion layer and the overcoat layer, wherein the stress absorbing layer comprises a polymer and a hydrophilic colloid in a mass ratio of greater than or equal to about 1:1, the polymer having a glass transition temperature of less than about 5. degree. C. It has been found that pressure fog can be substantially reduced when such a stress absorbing layer is present.

57631549, Jun 9, 1998

Aug 7, 1996

8/689325

Henry James Gysling - Rochester NY
Kenneth James Lushington - Rochester NY

Eastman Kodak Company - Rochester NY

G03C 109

430603

The invention is generally accomplished providing a silver halide emulsion comprising silver halide grains and a palladium compound represented by Formula I: PdX. sub. 2 (TeR. sub. 2). sub. 2 wherein X is Cl, Br, I, NCO, NCS, NCSe, N. sub. 3, or O. sub. 2 CR' R, R' are alkyl or aryl.

56771207, Oct 14, 1997

May 23, 1996

8/653735

Kenneth James Lushington - Rochester NY
Henry James Gysling - Rochester NY

Eastman Kodak Company - Rochester NY

G03C 100
G03C 109

430603

The invention is generally accomplished providing a silver halide emulsion comprising silver halide grains and a tellurium compound represented by Formula I: TeL. sub. n X. sub. 2 wherein L is thiourea or substituted thiourea, n is 2 or 4, X is Cl, Br, I, OCN, SCN, SeCN, TeCN, or N. sub. 3 or Formula II ##STR1## wherein X is COR, CSR, CNR. sub. 2, CR, CAr, PR. sub. 2, P(OR). sub. 2 R is alkyl or aryl.

51680351, Dec 1, 1992

Dec 27, 1990

7/634449

Kenneth J. Lushington - Rochester NY
Sucheta Tandon - Fairport NY

Eastman Kodak Company - Rochester NY

G03C 1015

430569

A method for controlling pressure-induced fog in a silver bromide photographic material involves surface treatment of the emulsion AgBr grains with thiocyanate and an iodide salt. In particular, a process for making a pressure fog-resistant photographic emulsion includes steps of forming a photographic emulsion containing cubic or cubooctahedral silver bromide grains, surface-treating the AgBr grains with a thiocyanate by adding the thiocyanate to the emulsion, chemically sensitizing the emulsion, maintaining the emulsion at a temperature and for a time sufficient to allow the thiocyanate to react with the grain surfaces, and then surface-treating the AgBr grains with an iodide salt by adding the salt to the emulsion in an amount and under conditions effective to fill in cubic faces of the AgBr grains. The latter step partially or fully converts the AgBr grains to octahedral grains. A photographic element can then be made by coating the emulsion on a suitable base.