Richard L Parton

US Patent:

6355386, Mar 12, 2002

Filed:

Oct 16, 2000

Appl. No.:

09/688496

Inventors:

Margaret J. Helber - Rochester NY
William J. Harrison - Rochester NY
Richard L. Parton - Webster NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1815

US Classification:

430 20, 430522, 2522994, 25229961, 25229962, 349106, 349182, 549 53

Abstract:

This invention is a dispersion comprising a solvent having dispersed therein a liquid-crystal forming dye of structural Formula I: wherein: D is a merocyanine dye; each Y contains an ionic or a nonionic solubilizing substituent or a group with a pKa value of less than 4 in water; each X is a nonionic substituent; n is 1 to 10; m is 0-10; and the resulting dye forms a liquid-crystalline phase in solvent. The dispersion is particularly useful in imaging and photographic elements.

US Patent:

6361932, Mar 26, 2002

Filed:

Sep 11, 1998

Appl. No.:

09/151916

Inventors:

Richard L. Parton - Webster NY
Thomas L. Penner - Fairport NY
William J. Harrison - Rochester NY
Margaret J. Helber - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 112

US Classification:

430572, 430574, 430577, 430580, 430581, 430583, 430584, 430585

Abstract:

This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith at least two dye layers comprising (a) an inner dye layer adjacent to the silver halide grain and comprising at least one dye, Dye 1, that is capable of spectrally sensitizing silver halide and (b) an outer dye layer adjacent to the inner dye layer and comprising at least one dye, Dye 2, wherein Dye 2 is other than a cyanine dye, wherein the dye layers are held together by non-covalent forces; the outer dye layer adsorbs light at equal or higher energy than the inner dye layer; and the energy emission wavelength of the outer dye layer overlaps with the energy absorption wavelength of the inner dye layer. This invention also comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith at least one dye having at least one anionic substituent and at least one dye having at least one cationic substituent, with the proviso that one of the dyes is other than a cyanine dye.

US Patent:

6558893, May 6, 2003

Filed:

Nov 17, 2000

Appl. No.:

09/716101

Inventors:

Richard L. Parton - Webster NY
Andrei Andrievsky - Webster NY
Thomas L. Penner - Fairport NY
William J. Harrison - Pittsford NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 110

US Classification:

430574, 430572, 430578, 430582, 430583, 430584, 430586, 430587, 430588, 430590, 430591, 430592

Abstract:

This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith a combination of two or more dyes comprising: (a) a first dye which is a cyanine dye of formula Ia and has a net charge of zero or -1 âwherein the substituents are as defined in the specification; (b) a second dye which has at least one substituent that has a positive charge, and is a cyanine dye a merocyanine dye, arylidene dye, complex cyanine dye, complex merocyanine dye, homopolar cyanine dye, hemicyanine dye, styryl dye, hemioxonol dye, oxonol dye, anthraquinone dye, triphenylmethane dye, azo dye type, azomethines, or a coumarin dye, with the proviso that if the second dye is a cyanine dye, it is of formula IIa: âwherein the substituents are as defined in the specification; and wherein (c) the wavelength of maximum light absorption, in nanometers (nm), of the first dye and the wavelength of maximum light absorption of the second dye differ by at least 10 nm.

US Patent:

6620581, Sep 16, 2003

Filed:

Oct 16, 2000

Appl. No.:

09/690068

Inventors:

Richard L. Parton - Webster NY
Joseph C. Deaton - Rochester NY
William J. Harrison - Rochester NY
Margaret J. Helber - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 108

US Classification:

430559, 430570, 430572, 430574, 430577, 430581, 430576

Abstract:

This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith at least two dyes: (a) a first dye that has at least one anionic substituent and that is capable of spectrally sensitizing a silver halide emulsion; and (b) a second dye that absorbs light at an equal or shorter wavelength than the first dye and that has at least one cationic substituent and that is highly fluorescent.

US Patent:

6787297, Sep 7, 2004

Filed:

May 12, 2003

Appl. No.:

10/436288

Inventors:

Steven G. Link - Rochester NY
Richard L. Parton - Webster NY
Robert D. Wilson - Rochester NY
Roger A. Bryant - Rochester NY
William J. Harrison - Pittsford NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1005

US Classification:

430572, 430570, 430574, 430576, 430581, 430585, 430588, 430584, 430591

Abstract:

This invention provides a silver halide photographic element comprising at least one silver halide emulsion comprising silver halide grains which have associated therewith at least an inner dye layer and an outer dye layer wherein the outer dye layer comprises a dye having at least one substituent that has a positive charge, said photographic element further comprising a cyanine dye of formula (I) or (II) (as described in the specification) that is capable of spectrally sensitizing a silver halide emulsion.

US Patent:

6849345, Feb 1, 2005

Filed:

May 14, 2002

Appl. No.:

10/145363

Inventors:

Richard L. Parton - Webster NY, US
Ching W. Tang - Rochester NY, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H05B 3312
C07C21158

US Classification:

428690, 428917, 313504, 313506, 564428, 564429, 564434

Abstract:

Disclosed is a multilayer electroluminescent device comprising a cathode, an anode, a light emitting layer (LEL) and a layer disposed between the cathode and anode containing a naphthalene compound represented by formula (1): wherein.

US Patent:

6870054, Mar 22, 2005

Filed:

Dec 5, 2003

Appl. No.:

10/729263

Inventors:

Joseph C. Deaton - Rochester NY, US
Richard L. Parton - Webster NY, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

C07F015/00
B32B009/00

US Classification:

546 10, 549 3, 556 40, 556 41, 556136, 257 40, 428690

Abstract:

Disclosed is a process for forming an organometallic cyclometallated iridium compound comprising reacting an iridium halide complex with a silver salt and excess organic cyclometallating ligand in a diol solvent. The process provides better yields and control of desired isomers.

US Patent:

6908730, Jun 21, 2005

Filed:

Jan 17, 2003

Appl. No.:

10/347014

Inventors:

Richard L. Parton - Webster NY, US
Thomas L. Penner - Fairport NY, US
David R. Foster - Rochester NY, US
Stephen A. Hershey - Victor NY, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C001/005

US Classification:

430572, 430570, 430574, 430559, 430577, 430581, 430576

Abstract:

This invention relates to a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith:.