1
Ching W Tang, Chin H Chen, Ramanuj Goswami: Electroluminescent device with modified thin film luminescent zone. Eastman Kodak Company, Carl O Thomas, September 6, 1988: US04769292 (1185 worldwide citation)

An electroluminescent device is disclosed having a luminescent zone of less than one .mu.m in thickness comprised of an organic host material capable of sustaining hole-electron recombination and a fluorescent material capable of emitting light in response to energy released by hole-electron recombi ...


2
Derek D Chapman, Ramanuj Goswami, Csaba A Kovacs: Dye mixtures for optical recording layers. Eastman Kodak Company, John R Everett, March 19, 1996: US05500325 (15 worldwide citation)

A dye mixture is disclosed. The mixture is useful in recording layers of optical recording elements. The mixture has:


3
Ramanuj Goswami, William D Ramsden, Paul A Zielinski, David G Baird, LuAnn K Weinstein, Margaret J Helber, Doreen C Lynch: Thermally developable imaging materials containing heat-bleachable antihalation composition. Eastman Kodak Company, J Lanny Tucker, Louis M Leichter, May 6, 2003: US06558880 (12 worldwide citation)

Photothermographic materials comprise heat-bleachable antihalation compositions in backside antihalation layers. These compositions comprise a hexaarybiimidazole and an oxonol dye that can be represented by the following Structure I:


4
Nair N Ravindran, Ramanuj Goswami: Imaging element containing fluorescent dye-releasing coupler compound. Eastman Kodak Company, Thomas F Kirchoff, September 27, 1988: US04774181 (9 worldwide citation)

An imaging element is described which comprises a dye image-forming coupler compound and a compound capable of releasing a fluorescent dye as a function of silver halide development. The released dye is capable of fluorescence which optically compensates for unwanted absorption of an image dye there ...


5
Robert James Perry, Ramanuj Goswami: Heat bleachable elements having polymeric acid layer adjacent heat bleachable antihalation layer. Eastman Kodak Company, J Lanny Tucker, July 29, 1997: US05652091 (6 worldwide citation)

Heat bleachable elements have antihalation layers composed of metallized or unmetallized formazan dyes, hexaarylbiimidzoles having alkoxy substituents and film forming binders that soften upon heating. These layers are rapidly bleached at relatively low temperatures. Polymeric acidic layers adjacent ...


6
Ramanuj Goswami, Harry J Price, Mary E Craver: Photographic processing methods using compositions containing stain reducing agent. Eastman Kodak Company, J Lanny Tucker, November 28, 2000: US06153364 (6 worldwide citation)

Specific aromatic compounds having an extended planar .pi. system are useful as spectral sensitizing dye stain reducing agents in photographic processing compositions and methods for providing color or black-and-white images in various photographic silver halide materials. These compounds are devoid ...


7
Derek David Chapman, Michael Paul Cunningham, Ramanuj Goswami: Optical recording layers containing no k metallized formazan dyes mixed with symmetrical and unsymmetrical cyanine dyes. Eastman Kodak Company, John R Everett, June 30, 1998: US05773193 (6 worldwide citation)

An optical recording element is disclosed. The element has a transparent substrate and on the surface of said substrate, a recording layer and a light reflecting layer wherein recording layer comprises a mixture of a metallized formazan dye with symmetrical and unsymmetrical cyanine dyes. The unreco ...


8
Ramanuj Goswami, Chin H Chen: Fluorescent dyes and biological and analytical uses thereof. Eastman Kodak Company, J Lanny Tucker, March 14, 1989: US04812393 (6 worldwide citation)

Substituted 4-oxo-4H-benz-[d,e] anthracenes are fluorescent dyes which are useful in biomedical studies and analytical determinations. They are particularly useful in assays for living organisms, e.g. microorganisms, carried out at a pH of 9 or less. For these determinations, the fluorescent dyes ca ...


9
Ramanuj Goswami, Robert J Perry, Paul Anthony Zielinski: Thermal imaging recording element. Eastman Kodak Company, Harold E Cole, December 2, 1997: US05693589 (6 worldwide citation)

A thermal recording element comprising a support having thereon a dye layer comprising a polymeric binder containing:


10
Derek David Chapman, James C Fleming, Ramanuj Goswami, Csaba Andras Kovacs: Tetra dye mixed with another dye or dyes for optical recording elements. Eastman Kodak Company, John R Everett, March 2, 1999: US05876821 (6 worldwide citation)

A dye mixture having, at 780 nm, a real refractive index not less than 1.8, and an imaginary part not greater than 0.15 and comprising (a) a tetra dye having a metallized azo dianionic dye with a cationic dye counterion and (b) at least one other dye having the structure according to formula I: ##ST ...