Patents by Inventor Douglas R. Robello
Douglas R. Robello 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: 7480021Abstract: This invention relates to an optical film comprising a first component having a birefringence dispersion of D1>1 and a second component having a birefringence dispersion of D2<1, wherein the birefringence ratio of the first and second component is delta n1/delta n2>0, wherein the optical film has a reverse birefringence dispersion of D<1.Type: GrantFiled: December 29, 2005Date of Patent: January 20, 2009Assignee: Nitto Denko CorporationInventors: YuanQiao Rao, Douglas R. Robello, Anne M. Miller
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Publication number: 20090001353Abstract: A thin layer of organic semiconductor material comprising a comprising an organic semiconductor thin film material is disclosed in which the thin film material substantially comprises a heteropyrene compound or derivative. In one embodiment, a thin film transistor comprises a layer of the organic semiconductor material. Further disclosed is a process for fabricating an organic thin-film transistor device, preferably by relative low-temperature sublimation or solution-phase deposition onto a substrate.Type: ApplicationFiled: June 26, 2007Publication date: January 1, 2009Inventors: Deepak Shukla, Thomas R. Welter, Ann L. Carroll-Lee, Wendy G. Ahearn, Douglas R. Robello
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Patent number: 7459263Abstract: The invention relates to an optical recording material comprising: a polymeric matrix; a dewarbenzene derivative reactant capable of undergoing isomerization to a benzene product upon triplet excitation, thereby causing a change in optical properties; and a sensitizer capable of absorbing actinic radiation to cause triplet energy transfer to said reactant, wherein the algebraic sum of the excitation energy of said sensitizer and its reduction potential is at least 0.05 eV less than the oxidation potential of said reactant, thereby precluding one-electron oxidation of said reactant. The invention further relates to an optical device comprising regional variations in concentrations of reactants and products produced by triplet chain isomerization, thereby providing a pattern of intelligence.Type: GrantFiled: September 17, 2004Date of Patent: December 2, 2008Assignee: Eastman Kodak CompanyInventors: Samir Y. Farid, Douglas R. Robello, Joseph P. Dinnocenzo, Paul B. Merkel, Lorraine Ferrar, Yeonsuk Roh, Mark R. Mis
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Patent number: 7195829Abstract: An electroluminescent device comprises a cathode, an anode, and therebetween a layer containing a host material and an ethynyl compound of Formula (1): A-C?C-B??(1) in an amount sufficient to stabilize the device wherein A and B represent independently selected fused carbocyclic ring groups.Type: GrantFiled: March 30, 2004Date of Patent: March 27, 2007Assignee: Eastman Kodak CompanyInventors: Lelia Cosimbescu, Douglas R. Robello
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Patent number: 7090930Abstract: Disclosed is a useful electroluminescent device comprising a cathode, an anode, and therebetween a light emitting layer containing a host material and a phosphorescent light-emitting material wherein the host material is represented by formula (1): X?-A-X???(1) wherein: A is selected from the group consisting of an unsubstituted phenylene ring, a biphenylene group, a terphenylene group, a naphthylene group, and a fluorene group; and each of X? and X? is an independently selected aromatic group bearing an ortho aromatic substituent.Type: GrantFiled: December 5, 2003Date of Patent: August 15, 2006Assignee: Eastman Kodak CompanyInventors: Douglas R. Robello, Joseph C. Deaton, David J. Giesen, Christopher T. Brown, Jianmin Shi
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Patent number: 7022392Abstract: An optically recorded article comprising a pattern of isomerized material in two isomeric forms in a matrix, wherein one of the isomeric forms is capable of being converted to the other form by one-electron oxidation and wherein said matrix was polymerized in-situ.Type: GrantFiled: November 4, 2003Date of Patent: April 4, 2006Assignee: Eastman Kodak CompanyInventors: Joseph P. Dinnocenzo, Douglas R. Robello, Samir Y. Farid, Mark R. Mis, Lorraine Ferrar, Aaron S. Peer, Thomas G. Brown
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Patent number: 6969578Abstract: An optical recording material which when exposed to actinic radiation produces a change in optical properties in the exposed regions, thereby providing a pattern of intelligence for storing and retrieving information, the recording material having: a) a polymer containing a covalently bound reactant moiety which is capable of undergoing a chemical transformation upon a one electron oxidation, thus causing the change in optical properties in the exposed regions; and b) a sensitizer capable of absorbing actinic radiation to cause an initial one electron oxidation of the reactant.Type: GrantFiled: August 19, 2002Date of Patent: November 29, 2005Assignee: Eastman Kodak CompanyInventors: Douglas R. Robello, Samir Y. Farid, Joseph P. Dinnocenzo, Jason G. Gillmore
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Patent number: 6867255Abstract: A nanocomposite made with an inorganic layered material and a star-shaped polystyrene that can be blended with normal linear polystyrene is disclosed. The inorganic layered material can have an exfoliated structure, substantially exfoliated, or intercalated structure. The exfoliated structure can result in significantly improved physical properties, even with only a very low content of clay. The invention is also directed to a process that can be used to make the compositions of the present invention. In one embodiment, a physical mixture of clay and star polymer is prepared and then the mixture is heated for several hours, preferably under high-shear mixing, to increase the rate of exfoliation, after which mostly inexpensive commodity linear polystyrene polymer completes the composition.Type: GrantFiled: October 3, 2003Date of Patent: March 15, 2005Assignee: Eastman Kodak CompanyInventors: Douglas R. Robello, Nori Yamaguchi, Thomas N. Blanton, Craig L. Barnes
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Patent number: 6770406Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein PUG is a residue of removing a hydrogen from wherein X, Y, and Z represent substituents selected independently from the groups hydrogen, alkyl group of 1 to 6 carbon atoms, cyclopropyl, aryl, arylalkyl, and heterocyclic groups, wherein at least one of X, Y, and Z is an aryl group and one of X, Y, Z, which may or may not be an aryl group, is attached in the direction of the backbone, and the other substituents are as defined in the specification. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.Type: GrantFiled: January 9, 2003Date of Patent: August 3, 2004Assignee: Eastman Kodak CompanyInventors: James H. Reynolds, Douglas R. Robello, David H. Levy
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Publication number: 20040137380Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: 1Type: ApplicationFiled: January 9, 2003Publication date: July 15, 2004Applicant: Eastman Kodak CompanyInventors: James H. Reynolds, Douglas R. Robello, David H. Levy
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Patent number: 6749977Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a blocked polymeric compound in which the blocking group, between the developing agent and the polymeric backbone, is heteroaromatic. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.Type: GrantFiled: January 9, 2003Date of Patent: June 15, 2004Assignee: Eastman Kodak CompanyInventors: Douglas R. Robello, David T. Southby
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Publication number: 20040068038Abstract: A nanocomposite made with an inorganic layered material and a star-shaped polystyrene that can be blended with normal linear polystyrene is disclosed. The inorganic layered material can have an exfoliated structure, substantially exfoliated, or intercalated structure. The exfoliated structure can result in significantly improved physical properties, even with only a very low content of clay. The invention is also directed to a process that can be used to make the compositions of the present invention. In one embodiment, a physical mixture of clay and star polymer is prepared and then the mixture is heated for several hours, preferably under high-shear mixing, to increase the rate of exfoliation, after which mostly inexpensive commodity linear polystyrene polymer completes the composition.Type: ApplicationFiled: October 3, 2003Publication date: April 8, 2004Inventors: Douglas R. Robello, Nori Yamaguchi, Thomas N. Blanton, Craig L. Barnes
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Publication number: 20040038146Abstract: An optical recording material which when exposed to actinic radiation produces a change in optical properties in the exposed regions, thereby providing a pattern of intelligence for storing and retrieving information, the recording material having: a) a polymer containing a covalently bound reactant moiety which is capable of undergoing a chemical transformation upon a one electron oxidation, thus causing the change in optical properties in the exposed regions; and b) a sensitizer capable of absorbing actinic radiation to cause an initial one electron oxidation of the reactant.Type: ApplicationFiled: August 19, 2002Publication date: February 26, 2004Applicant: Eastman Kodak CompanyInventors: Douglas R. Robello, Samir Y. Farid, Joseph P. Dinnicenzo, Jason G. Gillmore
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Patent number: 6686407Abstract: A nanocomposite made with an inorganic layered material and a star-shaped polystyrene that can be blended with normal linear polystyrene is disclosed. The inorganic layered material can have an exfoliated structure, substantially exfoliated, or intercalated structure. The exfoliated structure can result in significantly improved physical properties, even with only a very low content of clay. The invention is also directed to a process that can be used to make the compositions of the present invention. In one embodiment, a physical mixture of clay and star polymer is prepared and then the mixture is heated for several hours, preferably under high-shear mixing, to increase the rate of exfoliation, after which mostly inexpensive commodity linear polystyrene polymer completes the composition.Type: GrantFiled: May 24, 2002Date of Patent: February 3, 2004Assignee: Eastman Kodak CompanyInventors: Douglas R. Robello, Nori Yamaguchi, Thomas N. Blanton, Craig L. Barnes
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Publication number: 20030220434Abstract: A nanocomposite made with an inorganic layered material and a star-shaped polystyrene that can be blended with normal linear polystyrene is disclosed. The inorganic layered material can have an exfoliated structure, substantially exfoliated, or intercalated structure. The exfoliated structure can result in significantly improved physical properties, even with only a very low content of clay. The invention is also directed to a process that can be used to make the compositions of the present invention. In one embodiment, a physical mixture of clay and star polymer is prepared and then the mixture is heated for several hours, preferably under high-shear mixing, to increase the rate of exfoliation, after which mostly inexpensive commodity linear polystyrene polymer completes the composition.Type: ApplicationFiled: May 24, 2002Publication date: November 27, 2003Inventors: Douglas R. Robello, Nori Yamaguchi, Thomas N. Blanton, Craig L. Barnes
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Patent number: 6569600Abstract: An optical recording material which when exposed to actinic radiation produces a change in optical properties in the exposed regions, thereby providing a pattern of intelligence for storing and retrieving information, the recording material comprising: a) a binder; b) a reactant which is capable of undergoing a chemical transformation upon a one electron oxidation, thus causing the change in optical properties in the exposed regions; and c) a sensitizer capable of absorbing actinic radiation to cause an initial one electron oxidation of the reactant.Type: GrantFiled: March 30, 2001Date of Patent: May 27, 2003Assignee: Eastman Kodak CompanyInventors: Joseph P. Dinnocenzo, Samir Y. Farid, Douglas R. Robello, Turan Erdogan
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Publication number: 20030072250Abstract: An optical recording material which when exposed to actinic radiation produces a change in optical properties in the exposed regions, thereby providing a pattern of intelligence for storing and retrieving information, the recording material comprising:Type: ApplicationFiled: March 30, 2001Publication date: April 17, 2003Applicant: Eastman Kodak CompanyInventors: Joseph P. Dinnocenzo, Samir Y. Farid, Douglas R. Robello, Turan Erdogan
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Patent number: 6051531Abstract: A colorant-donor element for thermal colorant transfer comprising a support having thereon a colorant layer having a laser radiation-absorbing material associated therewith, and wherein the laser radiation-absorbing material comprises an ionic polymer having a certain charge having associated therewith an ionic dye of opposite charge, the ionic dye comprising a laser radiation-absorbing chromophore comprising an organic moiety having a plurality of conjugated double bonds and an optical absorption of from about 400 to about 1200 nm.Type: GrantFiled: November 16, 1998Date of Patent: April 18, 2000Assignee: Eastman Kodak CompanyInventors: John M. Noonan, Mitchell Burberry, Douglas R. Robello
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Patent number: 6051532Abstract: A colorant-donor element for thermal colorant transfer comprising a support having thereon a colorant layer having a laser radiation-absorbing material associated therewith, wherein the laser radiation-absorbing material comprises a polymer containing within its repeat units a laser radiation-absorbing chromophore comprising an organic moiety having a plurality of conjugated double bonds and an optical absorption of from about 400 to about 1200 nm, and wherein the organic moiety is capable of forming at least two covalent bonds to the polymer backbone.Type: GrantFiled: November 16, 1998Date of Patent: April 18, 2000Assignee: Eastman Kodak CompanyInventors: Mitchell Burberry, Douglas R. Robello, Richard T. Spring, Glenn T. Pearce
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Patent number: 5998088Abstract: A laser ablative recording element comprising a support having thereon a recording layer comprising a pigment dispersed in a polymeric binder, the polymeric binder having an infrared-absorbing material dissolved therein, and wherein the polymeric binder is obtained from an aqueous latex dispersion of a polycyanoacrylate copolymer having the formula: ##STR1## wherein: R is a substituted or unsubstituted alkyl group having from 1 to about 20 carbon atoms;VA is a repeating unit resulting from the polymerization of a vinyl-containing monomer with a pendant ionizable group; and the weight ratios of x:y range from about 97:3 to about 70:30.Type: GrantFiled: August 3, 1998Date of Patent: December 7, 1999Assignee: Eastman Kodak CompanyInventors: Douglas R. Robello, Michael T. Swanson