Henry J Sniadoch

US Patent:

50413678, Aug 20, 1991

Filed:

Mar 5, 1990

Appl. No.:

7/488553

Inventors:

Henry J. Sniadoch - Canandaigua NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1295
G03C 134

US Classification:

430603

Abstract:

A photographic recording material is provided which has enhanced photographic properties, such as sharpness values without substantial decrease in photographic speed.

US Patent:

42738539, Jun 16, 1981

Filed:

Mar 30, 1979

Appl. No.:

6/025686

Inventors:

Ignazio S. Ponticello - Rochester NY
Henry J. Sniadoch - Rochester NY
George Villard - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 700
G03C 140
G03C 554

US Classification:

430213

Abstract:

A photographic element comprises a support having thereon a layer containing a copolymer comprising a vinylimidazole in association with metal ions. The metal forms a novel complex with the polymer and photographic elements comprising these materials are useful in diffusion transfer processes, and particularly useful with metal-coordinating dyes such as chelating dyes or dye-forming materials to provide a metallized dye image.

US Patent:

56502656, Jul 22, 1997

Filed:

Dec 22, 1995

Appl. No.:

8/577757

Inventors:

Henry Joseph Sniadoch - Canandaigua NY
Gary Norman Barber - Penfield NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 185

US Classification:

430530

Abstract:

Palladium compounds are incorporated into a relatively low speed photographic print element. One embodiment of the invention comprises a silver halide light sensitive photographic print element comprising a support bearing at least one silver halide emulsion image forming layer, an antistatic layer containing vanadium pentoxide, and a palladium compound. In a preferred embodiment, the silver halide light sensitive photographic print element of the invention comprises a support bearing on one side thereof at least one blue-sensitive silver halide emulsion yellow-image forming layer, at least one red-sensitive silver halide emulsion cyan-image forming layer, and at least one green-sensitive silver halide emulsion magenta-image forming layer; an antistatic layer containing vanadium pentoxide; and a palladium compound. The photographic print elements of the invention improve unexpected poor keeping performance under moderate humidity conditions demonstrated by print elements which comprise vanadium pentoxide containing antistatic layers. The elements of the invention additionally provide excellent protection against static charge and excellent transparency due to the use of vanadium pentoxide, which properties are not significantly dependent on ambient humidity.

US Patent:

52983692, Mar 29, 1994

Filed:

Jun 14, 1993

Appl. No.:

8/076334

Inventors:

Jal F. Munshi - Rochester NY
Henry J. Sniadoch - Canandaigua NY
Richard C. Tuites - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 109
G03C 1494

US Classification:

430379

Abstract:

When color reversal materials are developed by a process that comprises prolonged contact with the first, or black-and-white developer, images with a color mismatch or speed deficiency can occur. Such undesirable results can be reduced or eliminated by including in the reversal material, a layer of colloidal elemental silver. The layer can be adjacent to a light sensitive, silver halide-containing layer, which is present within a color record who's speed is to be increased in order to reduce the color mismatch. The amount of colloidal elemental silver employed is less than that used in the art to protect an underlying light sensitive, silver halide layer from exposure by unwanted light.