Patents by Inventor Adela Goredema

Adela Goredema 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).

  • Patent number: 10821658
    Abstract: Disclosed herein is a printing method for forming a three dimensional article. The method includes providing a first 3D structural material; depositing a metal nanoparticle ink composition on a surface of the first 3D structural material; annealing the metal nanoparticle ink composition at a temperature of between 60° C. and 100° C. to form the conductive article on the first 3D structural material; and optionally forming a second 3D structural material over the conductive article.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: November 3, 2020
    Assignee: XEROX CORPORATION
    Inventors: Adela Goredema, Chad S. Smithson, Michelle N. Chretien, Biby Esther Abraham, Hojjat Seyed Jamali
  • Patent number: 10814659
    Abstract: Methods for printing a conductive object are provided which may comprise dispensing one of a first ink composition and a second ink composition towards a substrate surface to form a deposition region on the substrate surface or on a previously printed object on the substrate surface, wherein the first ink composition comprises an aqueous solution of a metal compound and the second ink composition comprises an aqueous solution of a stable free radical; dispensing the other of the first and second ink compositions in the deposition region to mix the first and second ink compositions and induce chemical reduction of the metal compound by the stable free radical and precipitation of the metal of the metal compound; and removing solvent from the deposition region, thereby forming a conductive object comprising the precipitated metal.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: October 27, 2020
    Assignee: XEROX CORPORATION
    Inventors: Barkev Keoshkerian, Adela Goredema, Sarah J. Vella, Biby Esther Abraham, Michelle N Chretien
  • Patent number: 10800938
    Abstract: An ink composition including a metal salt; an optional solvent; and a stable component that is stable in the ink composition until treated, wherein, upon treatment, the component forms a compound that reduces the metal salt to form metal. An ink composition including a metal salt; an initiator; and an optional solvent; wherein, upon treatment, the initiator forms a compound which reduces the metal salt to metal. A process including combining a metal salt, an initiator, and an optional solvent, to form an ink; wherein, upon treatment, the initiator forms a compound which reduces the metal salt to metal. A process including providing an ink composition comprising a metal salt, an initiator, and an optional solvent; depositing the ink composition onto a substrate to form deposited features; and treating the deposited features on the substrate wherein the initiator forms a compound which reduces the metal salt to metal to form conductive features on the substrate.
    Type: Grant
    Filed: September 16, 2017
    Date of Patent: October 13, 2020
    Assignee: Xerox Corporation
    Inventors: Barkev Keoshkerian, Michelle N. Chrétien, Adela Goredema, Sarah J. Vella
  • Patent number: 10752797
    Abstract: A nanoparticle composition comprising a plurality of stabilized metal-containing nanoparticles comprising silver and/or a silver alloy composite. The stabilized metal-containing nanoparticles are prepared by a method comprising reacting a silver compound with a reducing agent comprising a hydrazine compound by incrementally adding the silver compound to a first mixture comprising the reducing agent, a stabilizer and a solvent. The stabilizer comprises a mixture of a first organoamine and a second organoamine, an alkyl moiety of the first organoamine having a longer carbon chain length than the alkyl moiety of the second organoamine. The first organoamine is selected from the group consisting of decylamine, undecylamine, dodecylamine, tridecylamine, tetradecylamine and mixtures thereof. The second organoamine is selected from group consisting of butylamine, pentylamine, hexylamine, heptylamine, octylamine, nonylamine, decylamine and mixtures thereof.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: August 25, 2020
    Assignee: XEROX CORPORATION
    Inventors: Hojjat Seyed Jamali, Adela Goredema, Naveen Chopra, Jonathan Lee, Barkev Keoshkerian
  • Patent number: 10633550
    Abstract: An ink composition including a metal salt amine complex; wherein the metal salt amine complex is formed from a metal salt and an amine; a compound selected from the group consisting of a stable free radical, a photoacid generator, and a thermal acid generator; and an optional solvent. A process including forming a metal salt amine complex; adding a compound selected from the group consisting of a stable free radical, a photoacid generator, and a thermal acid generator to the metal salt amine complex to form an ink. A process forming conductive features on a substrate with the ink composition.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 28, 2020
    Assignee: Xerox Corporation
    Inventors: Barkev Keoshkerian, Michelle N. Chrétien, Adela Goredema, Chad Smithson, Sarah J. Vella
  • Publication number: 20200032088
    Abstract: A metal nanoparticle ink composition comprises an ink vehicle and a plurality of metal nanoparticles dispersed in the ink vehicle. The metal nanoparticles including both a first organic stabilizing group and a second organic stabilizing group attached thereto, the first organic stabilizing group being different from the second organic stabilizing group, the first organic stabilizing group being selected from the group consisting of decylamine, undecylamine, dodecylamine, tridecylamine, tetradecylamine and mixtures thereof, and the second organic stabilizing group being selected from group consisting of butylamine, pentylamine, hexylamine, heptylamine, octylamine, nonylamine, decylamine and mixtures thereof.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 30, 2020
    Applicant: XEROX CORPORATION
    Inventors: Hojjat Seyed Jamali, Adela Goredema, Biby Esther Abraham, Jonathan Lee, Cuong Vong
  • Publication number: 20200032092
    Abstract: A nanoparticle composition comprising a plurality of stabilized metal-containing nanoparticles comprising silver and/or a silver alloy composite. The stabilized metal-containing nanoparticles are prepared by a method comprising reacting a silver compound with a reducing agent comprising a hydrazine compound by incrementally adding the silver compound to a first mixture comprising the reducing agent, a stabilizer and a solvent. The stabilizer comprises a mixture of a first organoamine and a second organoamine, an alkyl moiety of the first organoamine having a longer carbon chain length than the alkyl moiety of the second organoamine. The first organoamine is selected from the group consisting of decylamine, undecylamine, dodecylamine, tridecylamine, tetradecylamine and mixtures thereof. The second organoamine is selected from group consisting of butylamine, pentylamine, hexylamine, heptylamine, octylamine, nonylamine, decylamine and mixtures thereof.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 30, 2020
    Applicant: XEROX CORPORATION
    Inventors: Hojjat Seyed Jamali, Adela Goredema, Naveen Chopra, Jonathan Lee, Barkev Keoshkerian
  • Publication number: 20200031040
    Abstract: Disclosed herein is a printing method and system for forming a three dimensional article. The method includes depositing a UV curable composition and applying UV radiation to cure the UV curable composition to form a 3D structure. The method includes depositing a conductive metal ink composition on a surface of the 3D structure and annealing the conductive metal ink composition at a temperature of less than the glass transition temperature of the UV curable composition to form a conductive trace on the 3D structure. The method includes depositing a second curable composition over the conductive trace; and curing second curable composition to form the 3D printed article having the conductive trace embedded therein.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 30, 2020
    Inventors: Adela Goredema, Chad Smithson, Biby E. Abraham, Michelle N. Chretien, Naveen Chopra, Kurt I. Halfyard
  • Publication number: 20200031041
    Abstract: Disclosed herein is a printing method for forming a three dimensional article. The method includes providing a first 3D structural material; depositing a metal nanoparticle ink composition on a surface of the first 3D structural material; annealing the metal nanoparticle ink composition at a temperature of between 60° C. and 100° C. to form the conductive article on the first 3D structural material; and optionally forming a second 3D structural material over the conductive article.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 30, 2020
    Inventors: Adela Goredema, Chad S. Smithson, Michelle N. Chretien, Biby Esther Abraham, Hojjat Seyed Jamali
  • Publication number: 20200001637
    Abstract: Methods for printing a conductive object are provided which may comprise dispensing one of a first ink composition and a second ink composition towards a substrate surface to form a deposition region on the substrate surface or on a previously printed object on the substrate surface, wherein the first ink composition comprises an aqueous solution of a metal compound and the second ink composition comprises an aqueous solution of a stable free radical; dispensing the other of the first and second ink compositions in the deposition region to mix the first and second ink compositions and induce chemical reduction of the metal compound by the stable free radical and precipitation of the metal of the metal compound; and removing solvent from the deposition region, thereby forming a conductive object comprising the precipitated metal.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 2, 2020
    Inventors: Barkev Keoshkerian, Adela Goredema, Sarah J. Vella, Biby Esther Abraham, Michelle N. Chretien
  • Publication number: 20190085195
    Abstract: An ink composition including a metal salt; an optional solvent; and a stable component that is stable in the ink composition until treated, wherein, upon treatment, the component forms a compound that reduces the metal salt to form metal. An ink composition including a metal salt; an initiator; and an optional solvent; wherein, upon treatment, the initiator forms a compound which reduces the metal salt to metal. A process including combining a metal salt, an initiator, and an optional solvent, to form an ink; wherein, upon treatment, the initiator forms a compound which reduces the metal salt to metal. A process including providing an ink composition comprising a metal salt, an initiator, and an optional solvent; depositing the ink composition onto a substrate to form deposited features; and treating the deposited features on the substrate wherein the initiator forms a compound which reduces the metal salt to metal to form conductive features on the substrate.
    Type: Application
    Filed: September 16, 2017
    Publication date: March 21, 2019
    Inventors: Barkev Keoshkerian, Michelle N. Chrétien, Adela Goredema, Sarah J. Vella
  • Publication number: 20190062582
    Abstract: An ink composition including a metal salt amine complex; wherein the metal salt amine complex is formed from a metal salt and an amine; a compound selected from the group consisting of a stable free radical, a photoacid generator, and a thermal acid generator; and an optional solvent. A process including forming a metal salt amine complex; adding a compound selected from the group consisting of a stable free radical, a photoacid generator, and a thermal acid generator to the metal salt amine complex to form an ink. A process including providing an ink composition comprising a metal salt amine complex, wherein the metal salt amine complex is formed from a metal salt and an amine; a compound selected from the group consisting of a stable free radical, a photoacid generator, and a thermal acid generator; and an optional solvent; depositing the ink composition onto a substrate to form deposited features; and treating the deposited features on the substrate to form conductive features on the substrate.
    Type: Application
    Filed: August 31, 2017
    Publication date: February 28, 2019
    Inventors: Barkev Keoshkerian, Michelle N. Chrétien, Adela Goredema, Chad Smithson, Sarah J. Vella
  • Patent number: 9999902
    Abstract: Exemplary embodiments provide an erasable medium having an overcoat layer on a photochromic layer to provide a non-adhesive surface for the erasable medium when exposed to high temperatures, wherein the overcoat layer can include a latex or a mixture of a latex and a wax.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 19, 2018
    Assignee: XEROX CORPORATION
    Inventors: Gabriel Iftime, Jason Leong, Edward G. Zwartz, Gordon Sisler, Kentaro Morimitsu, Adela Goredema, Peter M. Kazmaier
  • Publication number: 20180118967
    Abstract: An ink composition including a metal nanoparticle; a viscous heat decomposable liquid, wherein the viscous heat decomposable liquid imparts a desired viscosity to the ink composition and which evaporates at a sintering temperature of the metal nanoparticle; an optional solvent; wherein the ink composition has a metal content of less than about 25 percent by weight, based upon the total weight of the ink composition; and wherein the ink composition has a viscosity of from about 50 to about 200 centipoise at a temperature of about 20 to about 30° C. A process for preparing the ink composition and for printing the ink composition. A flexographic printing process or gravure printing process including the ink composition.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 3, 2018
    Inventors: Ping Liu, Adela Goredema, Biby Esther Abraham, Jonathan Siu-Chung Lee, Cuong Vong, Kentaro Morimitsu, Guiqin Song, Marcel P. Breton, Michelle N. Chretien
  • Patent number: 9828520
    Abstract: A composition formed from ingredients comprising: an epoxy; a polyvinyl phenol; a cross-linking agent; an epoxy silane; and a solvent is disclosed. A printable medium and other devices made from the composition are also disclosed.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: November 28, 2017
    Assignee: XEROX CORPORATION
    Inventors: Guiqin Song, Nan-Xing Hu, Ping Liu, Adela Goredema, Biby Esther Abraham, Cuong Vong
  • Publication number: 20170298248
    Abstract: A composition formed from ingredients comprising: an epoxy; a polyvinyl phenol; a cross-linking agent; an epoxy silane; and a solvent is disclosed. A printable medium and other devices made from the composition are also disclosed.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 19, 2017
    Inventors: Guiqin Song, Nan-Xing Hu, Ping Liu, Adela Goredema, Biby Esther Abraham, Cuong Vong
  • Patent number: 9752040
    Abstract: A nanosilver ink composition including silver nanoparticles; polystyrene; and an ink vehicle. A process for preparing a nanosilver ink composition comprising combining silver nanoparticles; polystyrene; and an ink vehicle. A process for forming conductive features on a substrate using flexographic and gravure printing processes comprising providing a nanosilver ink composition comprising silver nanoparticles; polystyrene; and an ink vehicle; depositing the nanosilver ink composition onto a substrate to form deposited features; and heating the deposited features on the substrate to form conductive features on the substrate.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: September 5, 2017
    Assignee: Xerox Corporation
    Inventors: Adela Goredema, Yiliang Wu, Barkev Keoshkerian, Jenny Eliyahu, Cuong Vong, Biby Esther Abraham
  • Publication number: 20170183536
    Abstract: An interlayer composition including an epoxy resin; a polyvinyl phenol; a poly(melamine-co-formaldehyde) polymer; a solvent; an optional surfactant and an optional catalyst. A device including a substrate; an interlayer disposed thereon; and conductive features; wherein the interlayer is formed from a composition comprising an epoxy resin; a polyvinyl phenol; a poly(melamine-co-formaldehyde) polymer; an optional surfactant and an optional catalyst. A process for forming conductive features on a substrate including depositing an interlayer onto a substrate; thermally curing the interlayer; depositing a conductive composition onto the interlayer to form deposited features; and annealing the deposited features to form conductive features.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 29, 2017
    Inventors: Guiqin Song, Ping Liu, Biby Esther Abraham, Nan-Xing Hu, Adela Goredema, Vladislav Skorokhod
  • Publication number: 20170037255
    Abstract: Exemplary embodiments provide an erasable medium having an overcoat layer on a photochromic layer to provide a non-adhesive surface for the erasable medium when exposed to high temperatures, wherein the overcoat layer can include a latex or a mixture of a latex and a wax.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 9, 2017
    Applicant: XEROX CORPORATION
    Inventors: Gabriel Iftime, Jason Leong, Edward G. Zwartz, Gordon Sisler, Kentaro Morimitsu, Adela Goredema, Peter M. Kazmaier
  • Patent number: 9507249
    Abstract: Exemplary embodiments provide an erasable medium having an overcoat layer on a photochromic layer to provide a non-adhesive surface for the erasable medium when exposed to high temperatures, wherein the overcoat layer can include a latex or a mixture of a latex and a wax.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: November 29, 2016
    Assignee: XEROX CORPORATION
    Inventors: Gabriel Iftime, Jason Leong, Edward Graham Zwartz, Gordon Sisler, Kentaro Morimitsu, Adela Goredema, Peter M. Kazmaier