Patents by Inventor Louis J. Rossi
Louis J. Rossi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5962198Abstract: A photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a cyan dye forming coupler having Formula (I): ##STR1## wherein R.sub.1 represents hydrogen or an alkyl group;R.sub.2 represents a phenyl group having an electron withdrawing group having a Hammett's Sigma value greater than 0 in a position meta or para to the amido group and has no group having a Hammett's Sigma value greater than 0 in a position ortho to the amido group;n represents 1, 2, or 3;each X is located at a position of the phenyl ring meta or para to the sulfonyl group and is independently selected from the group consisting of alkyl, alkenyl, alkoxy, aryloxy, acyloxy, acylamino, sulfonyloxy, sulfamoylamino, sulfonamido, ureido, oxycarbonyl, oxycarbonylamino, and carbamoyl groups; andZ represents a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color developing agent.Type: GrantFiled: September 18, 1997Date of Patent: October 5, 1999Assignee: Eastman Kodak CompanyInventors: Philip T. Lau, Stanley W. Cowan, Louis J. Rossi
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Patent number: 5674666Abstract: The invention provides a photographic element which comprises a light-sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler having the formula: ##STR1## wherein: R.sub.1 represents an alkyl or aryl group;R.sub.2 represents an alkyl group of 2 to 4 carbon atoms;Ar represents an aryl group; andZ represents a hydrogen atom or a group capable of being split off by reaction of the coupler with an oxidized color developing agent.Such elements provide an improved cyan dye hue upon development.Type: GrantFiled: October 31, 1996Date of Patent: October 7, 1997Assignee: Eastman Kodak CompanyInventors: Philip T. Lau, Louis J. Rossi, Stanley W. Cowan
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Patent number: 5541024Abstract: Neutral density pigmented toner particles are produced by limited coalescence polymerization. The organic neutral density black colorant employed is a 1,4-bis arylazo derivative of 2,3-naphthalenediol.Type: GrantFiled: February 7, 1990Date of Patent: July 30, 1996Inventors: Mridula Nair, Zona R. Pierce, Louis J. Rossi
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Patent number: 5378269Abstract: A recording liquid for ink-jet recording comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving the coloring matter therein. The liquid medium is ethanol and the coloring matter is a dye represented by the following general formula (A): ##STR1## or the following general formula (B): ##STR2## as an image-forming component.Type: GrantFiled: December 29, 1993Date of Patent: January 3, 1995Assignee: Scitex Digital Printing, Inc.Inventors: Louis J. Rossi, Sunita P. Chavan
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Patent number: 5334435Abstract: A recording liquid for ink-jet recording comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving the coloring matter therein. The liquid medium is ethanol and the coloring matter is a dye represented by the following general formula (A): ##STR1## or the following general formula (B): ##STR2## as an image-forming component.Type: GrantFiled: November 20, 1992Date of Patent: August 2, 1994Assignee: Eastman Kodak CompanyInventors: Louis J. Rossi, Sunita P. Chavan
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Patent number: 5283165Abstract: Pyrrolinone dyes, and photographic materials containing them, which dyes have the formula: ##STR1## wherein; E.sup.1 represents an electron withdrawing group;R.sup.1 represents an aryl group of 6 to 14 carbon atoms or an alkyl group of from 1 to 12 carbon atoms;R.sup.2 represents an alkyl or alkylthio group of 1 to 20 carbon atoms, or an alkenyl group of 2 to 20 carbon atoms, or an aryl, aralkyl, heterocyclic or cycloalkyl group any of which have 5 to 14 carbon atoms, or R2 represents a hydroxy, cyano, chloro, nitro or hydrogen;M.sup.+ is a cation;each L represents a methine group;m is 0, 1, 2, or 3; and D is a moiety in conjugation with the oxygen of the pyrollinone ring.The dyes are particularly useful as solid particle filter dye dispersions in photographic elements.Type: GrantFiled: December 23, 1992Date of Patent: February 1, 1994Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Margaret J. Helber, Louis J. Rossi
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Patent number: 5102764Abstract: Toner particles are provided wherein a magenta dye is dispersed in a styrene butylacrylate copolymer. The dispersed dye is not aggregated, is colorfast, and does not sublime as the particles are heat fused. The dye is a 1,4-diaminoanthraquinone which is substituted in the 2 and 3 positions with phenoxy groups that are, in turn, substituted by either a lower alkyl or chloro group.Type: GrantFiled: December 15, 1989Date of Patent: April 7, 1992Assignee: Eastman Kodak CompanyInventors: Louis J. Rossi, Julie P. Harmon
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Patent number: 4997737Abstract: New electrophotographic elements contain electron-transport agents comprising certain new chemical compounds, which are sulfonyl derivatives of dicyanomethylenefluorene.Type: GrantFiled: December 18, 1989Date of Patent: March 5, 1991Assignee: Eastman Kodak CompanyInventors: Douglas E. Bugner, Teh-Ming Kung, Louis J. Rossi
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Patent number: 4948911Abstract: New chemical compounds are derivatives of fluorenones and are useful as electron-transport agents in electrophotographic elements.Type: GrantFiled: December 18, 1989Date of Patent: August 14, 1990Assignee: Eastman Kodak CompanyInventors: Douglas E. Bugner, Teh-Ming Kung, Louis J. Rossi
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Patent number: 4725867Abstract: The invention provides electrophotographic apparatus for forming a subsequent toner image overlapping one or more toner images previously formed on a surface of an electrophotographic element.The apparatus includes means for electrically charging the surface and the previously formed toner image or images, and means for forming an electrostatic latent image overlapping the previously formed toner image or images on the surface by imagewise exposing the element, through the previously formed toner image or images. The latent image forming means provides actinic radiation of a wavelength outside the range of 400 to 700 nanometers with the density of the previously formed toner image or images to the actinic radiation being less than about 0.2. The apparatus further includes means for electrographically developing the electrostatic latent image to thereby form the subsequent toner image.Type: GrantFiled: November 10, 1986Date of Patent: February 16, 1988Assignee: Eastman Kodak CompanyInventors: Yee S. Ng, Louis J. Rossi, Domenic Santilli
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Patent number: 4701396Abstract: Near infrared sensitive photoconductive elements are made from fluorine-substituted titanylphthalocyanine pigments which can be dispersion coated.Type: GrantFiled: May 6, 1986Date of Patent: October 20, 1987Assignee: Eastman Kodak CompanyInventors: Yann Hung, Thomas R. Klose, Michael T. Regan, Louis J. Rossi
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Patent number: 4654282Abstract: The invention provides an electrophotographic method of forming a subsequent toner image overlapping one or more toner images previously formed on a surface of an electrophotographic element.The method comprises the steps of:(a) electrically charging the surface and the previously formed toner image or images,(b) forming an electrostatic latent image overlapping the previously formed toner image or images on the surface by imagewise exposing the element, through the previously formed toner image or images, to actinic radiation of a wavelength outside the range of 400 to 700 nanometers; the density of the previously formed toner image or images to the actinic radiation being less than about 0.2, and(c) electrographically developing the electrostatic latent image to thereby form the subsequent toner image.Type: GrantFiled: May 1, 1986Date of Patent: March 31, 1987Assignee: Eastman Kodak CompanyInventors: Yee S. Ng, Louis J. Rossi, Domenic Santilli
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Patent number: 4414320Abstract: Novel 1,4-bis aryl-azo derivatives of 2,3-naphthalenediol in which the aryl groups are substituted with alkoxy and with sulfonamide or fluorosulfonyl groups. These compounds are useful as neutral density pigments in electrophotographic developers and have good light stability.Type: GrantFiled: January 31, 1983Date of Patent: November 8, 1983Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, Jeanne E. Kaeding, Louis J. Rossi
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Patent number: 4414152Abstract: Bis aryl-azo compounds of the formula ##STR1## wherein R.sup.1 is lower alkyl and R.sup.2 is fluoro or amino. The compounds are useful as neutral density pigments in electrophotographic developers and have good light stability.Type: GrantFiled: May 18, 1981Date of Patent: November 8, 1983Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, Jeanne E. Kaeding, Louis J. Rossi
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Patent number: 4293626Abstract: Electrophotosensitive materials having the structure ##STR1## wherein: M and N may be zero, one or two;L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6, and L.sup.7 may be cyano, hydrogen, substituted or unsubstituted alkyl, alkoxy, aralkyl, aryl or heterocycyl and in addition any two of L.sup.1, L.sup.2 and L.sup.3 and any two of L.sup.4, L.sup.5, L.sup.6 and L.sup.7 may together represent the elements needed to complete a carbocyclic or heterocyclic ring having from 5-12 carbon atoms;A.sup.1 may be the same as A.sup.2 and in addition may represent a substituted or unsubstituted aryl group;A.sup.2 represents a basic substituted or unsubstituted heterocyclic nucleus; andB.sup.1 and B.sup.2 represent cyano, cyanoaryl, carboxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonyl, acyl, arylcarbonyl, heteroyl groups such as benzofuroyl, nitro, nitro substituted aryl, sulfonyl, fluorosulfonyl, trifluoromethylsulfonyl, carbamoyl, arylcarbamoyl, and alkylcarbamoyl orB.sup.2 may be combined with .dbd.CL.sup.4 -CL.Type: GrantFiled: October 31, 1980Date of Patent: October 6, 1981Assignee: Eastman Kodak CompanyInventors: Frank G. Webster, Michael T. Regan, Louis J. Rossi
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Patent number: 4282354Abstract: In general, materials having the structure ##STR1## wherein A represents phenylene, napthylene, anthracenediyl, and dibenzothien-diyl;R.sub.1 and R.sub.2, which may be the same or different when taken alone represent hydrogen, cyano, alkylcarbonyl and arylcarbamoyl, arylcarbonyl, cyanoaryl;R.sub.1 and R.sub.2, when taken together, represent sufficient atoms to form substituted and unsubstituted radicals selected from the group consisting of furanylidene, fluorenylidene, pyrimidinylidene, thiazolidinylidene, pyrrolinyl, and indenyl, isoxazolinylidene, pyrazolinylidene and indanylidene, wherein said substituents are selected from the group consisting of hydrogen, cyano, aryl, oxo, thioxo, nitro, alkyl, nitroaryl, carbamoyl and cyanoalkyl; andalkyl represents an alkyl group having from one to six carbon atoms; aryl represents an aromatic nucleus selected from the group consisting of benzene, napthalene or anthracene, are useful in electrophoretic migration imaging processes.Type: GrantFiled: April 18, 1979Date of Patent: August 4, 1981Assignee: Eastman Kodak CompanyInventors: James A. Van Allan, Louis J. Rossi, Melvin S. Bloom, Michael T. Regan, Hal E. Wright, Joseph Y. Kaukeinen
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Patent number: 4272595Abstract: Electrophotosensitive materials having the structure ##STR1## wherein: M and N may be zero, one or two;L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6, and L.sup.7 may be cyano, hydrogen, substituted or unsubstituted alkyl, alkoxy, aralkyl, aryl or heterocycyl and in addition any two of L.sup.1, L.sup.2 and L.sup.3 and any two of L.sup.4, L.sup.5, L.sup.6 and L.sup.7 may together represent the elements needed to complete a carbocyclic or heterocyclic ring having from 5-12 carbon atoms;A.sup.1 may be the same as A.sup.2 and in addition may represent a substituted or unsubstituted aryl group;A.sup.2 represents a basic substituted or unsubstituted heterocyclic nucleus; andB.sup.1 and B.sup.2 represent cyano, cyanoaryl, carboxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonyl, acyl, arylcarbonyl, heteroyl groups such as benzofuroyl, nitro, nitro substituted aryl, sulfonyl, fluorosulfonyl, tirfluoromethylsulfonyl, carbamoyl, arylcarbamoyl, and alkylcarbamoyl orB.sup.2 may be combined with .dbd.CL.sup.4 --CL.Type: GrantFiled: February 14, 1979Date of Patent: June 9, 1981Assignee: Eastman Kodak CompanyInventors: Frank G. Webster, Michael T. Regan, Louis J. Rossi
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Patent number: 4255506Abstract: In general, materials having the structure ##STR1## wherein n equals 1 or 2;A represents phenylene, naphthylene, anthracenyl, anthracenediyl, and dibenzothien-diyl;R.sub.1 and R.sub.2 which may be the same or different when taken alone represent hydrogen, cyano, alkylcarbonyl and arylcarbamoyl, arylcarbonyl, cyanoaryl;R.sub.1 and R.sub.2, when taken together, represent sufficient atoms to form substituted and unsubstituted radicals selected from the group consisting of furanylidene, fluorenylidene, pyrimidinylidene, thiazolidinylidene, pyrrolinyl, and indenyl, isoxazolinylidene, pyrazolinylidene and indanylidene, wherein said substituents are selected from the group consisting of hydrogen, cyano, aryl, oxo, thioxo, nitro, alkyl, nitroaryl, carbamoyl and cyanoalkyl; andalkyl represents an alkyl group having from one to six carbon atoms; aryl represents an aromatic nucleus selected from the group consisting of benzene, naphthalene or anthracene, are useful in electrophoretic migration imaging processes.Type: GrantFiled: April 23, 1979Date of Patent: March 10, 1981Assignee: Eastman Kodak CompanyInventors: James A. Van Allan, Louis J. Rossi, Melvin S. Bloom, Michael T. Regan, Hal E. Wright, Joseph Y. Kaukeinen
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Patent number: 4247459Abstract: Azo dye compounds of substantially neutral density which are particularly useful in liquid electrographic developers and are of the formula: ##STR1## wherein: R.sup.1 is hydrogen, --COOH, --CONH.sub.2, --SO.sub.2 NH.sub.2 or --SO.sub.3 M and M is a cation;R.sup.2 is a lower alkoxy radical, --OCH.sub.2 CONH.sub.2, or ##STR2## R.sup.3 is hydrogen or nitro; and R.sup.4 and R.sup.5 are the same or different lower alkyl or lower hydroxyalkyl radicals.Type: GrantFiled: July 10, 1979Date of Patent: January 27, 1981Assignee: Eastman Kodak CompanyInventors: John A. Ford, Jr., Louis J. Rossi
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Patent number: 4165984Abstract: In general, materials having the structure ##STR1## WHEREIN N EQUALS 1 OR 2;A represents phenylene, naphthylene, anthracenyl, anthracenediyl, and dibenzothien-diyl;R.sub.1 and R.sub.2, which may be the same or different when taken alone represent hydrogen, cyano, alkylcarbonyl and arylcarbamoyl, arylcarbonyl, cyanoaryl;R.sub.1 and R.sub.2, when taken together, represent sufficient atoms to form substituted and unsubstituted radicals selected from the group consisting of furanylidene, fluorenylidene, pyrimidinylidene, thiazolidinylidene, pyrrolinyl, and indenyl, isoxazolinylidene, pyrazolinylidene and indanylidene, wherein said substituents are selected from the group consisting of hydrogen, cyano, aryl, oxo, thioxo, nitro, alkyl, nitroaryl, carbamoyl and cyanoalkyl; andAlkyl represents an alkyl group having from one to six carbon atoms; aryl represents an aromatic nucleus selected from the group consisting of benzene, naphthalene or anthracene, are useful in electrophoretic migration imaging processes.Type: GrantFiled: March 24, 1978Date of Patent: August 28, 1979Assignee: Eastman Kodak CompanyInventors: James A. Van Allan, Louis J. Rossi, Melvin S. Bloom, Michael T. Regan, Hal E. Wright, Joseph Y. Kaukeinen