Eastman-Kodak Company

Eastman Kodak

Arunachalam T Ram

Joseph Anthony Manico

Brett Zippel Blaisdell

Diane Marie Carroll-Yacoby

Peter T Aylward

Peter Jerome Cowdery-Corvan

Thomas M Smith

Donald L Kerr

Daniel A Slater

Thierry G Vachette

Thomas D Weaver

Richard C Sehlin

Kathleen R Gisser

Paul W Partridge

David F Kopperl

Carl F Holtz

Leann L Wilson

Fred R Chamberlain

Disclosed is a waveguide having a light inlet surface and a viewing surface comprising stacked core layers separated by clad layers to form channels and bearing a smoothing layer on at least one of the light inlet surface or the viewing surface thereof.

Waveguide and method of smoothing optical surfaces

The invention relates to a method of improving raw stock keeping of silver containing imaging material comprising providing a package of said material and providing in said package a fiber board containing zeolite.

Method of improving the raw stock keeping of photothermographic films

A time and temperature integrating device for providing a visually observable indication of cumulative thermal exposure is disclosed comprising (a) at least two thermally sensitive image-forming areas of differing thermal sensitivity, and (b) indicating indicia in association with the thermally sensitive areas for indicating when each thermally sensitive area of the device has been exposed to predetermined cumulative thermal exposures. Such cumulative time-temperature exposure indicators may advantageously monitor and provide an ongoing record of thermal exposure prior to reaching a state of complete degradation, or other monitored property change, in an associated product.

Gauge type time and temperature integrating indicator device

Time and temperature integrating devices for providing a visually observable indication of cumulative thermal exposure are disclosed comprising (a) a substrate having thereon a thermally sensitive image-forming area comprising a combination of (i) an organic silver salt oxidizing agent and (ii) a reducing agent for the organic silver salt oxidizing agent, and (b) indicating indicia in association with the image forming area for indicating when the device has been exposed to a predetermined cumulative thermal exposure. In accordance with further embodiments of the invention, a process of applying such a device to a perishable product, and a perishable product having such a device applied directly thereto or to packaging thereof, are also disclosed. Time-temperature indicators in accordance with the invention undergo readily detectable changes can be easily optimized to match various rates of time-temperature dependent cumulative changes desired to be monitored for various products.

Time and temperature integrating indicator device

A packaged photographic product is disclosed comprising a) a silver halide based photographic material contained within a packaging enclosure, and b) a time and temperature integrating device for providing a visually observable indication of cumulative thermal exposure which is removably attached to the packaging enclosure with a pressure sensitive adhesive. In accordance with a preferred embodiment, the packaged photographic product further comprises an outer enclosure, and the packaging enclosure comprises a second enclosure within the outer enclosure, and the time and temperature integrating device is removably attached to the second enclosure with a pressure sensitive adhesive, and is visible through a transparent or open section of the outer enclosure. In accordance with a second embodiment of the invention, a process for monitoring the thermal exposure of a silver halide based photographic material prior to and after loading in a photographic camera is disclosed comprising a) removably attaching with a pressure sensitive adhesive a time and temperature integrating device for providing an indication of cumulative thermal exposure on a surface of an enclosure containing the photographic material, b) loading the photographic material in a photographic camera, and c) transferring the time and temperature integrating device from the surface of the enclosure to a surface of the camera at the time of loading the camera with the photographic material.

Packaged photographic product containing time and temperature

A photographic film cartridge is disclosed comprising a housing with an outer surface, and a time and temperature integrating device for providing a visually observable indication of cumulative thermal exposure on the outer surface, wherein the time and temperature integrating device is thin enough so as to not interfere with performance of the cartridge in a photographic camera and comprises a thermally sensitive image-forming area and indicating indicia in association with the image-forming area for indicating when the film cartridge has been exposed to a predetermined cumulative thermal exposure. In accordance with a second embodiment of the invention, a process for controlling the photofinishing of film contained in a photographic film cartridge comprising a housing with an outer surface, and a time and temperature integrating device for providing an indication of cumulative thermal exposure on the outer surface is disclosed, said process comprising determining from the time and temperature integrating device whether the film has been exposed beyond a maximum level of cumulative thermal exposure, and rejecting the film for photofinishing if the thermal exposure level is beyond the maximum level.

Photographic film cartridge containing time and temperature integrating

The invention relates to a method for improving the keeping of photographic elements comprising placing said elements in a container and placing a material comprising a blend of polymer and molecular sieve particles in said container with said element.

Blends of polymer and zeolite molecular sieves for packaging inserts

The invention relates to a method improving the storage qualities of a container or film holder comprising providing a container wherein at least a portion of the structure of said container comprises a molecular sieve or calcium, magnesium, or aluminum salt.

Zeolite molecular sieves for packaging structures

A method for improving the archival properties of a processed photographic film and a storage assembly for achieving the same by placing the film in a sealed container together with molecular sieve zeolites.

Growing community of inventors

Rochester, NY, United States of America

Arunachalam T Ram