Patents by Inventor Haixin Yang

Haixin Yang 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: 8128846
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: March 6, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Ollivier
  • Publication number: 20110308614
    Abstract: This invention provides an etching composition comprising one or more onium salts selected from the group consisting of iodonium salts and sulfonium and an organic medium. Also provided is a method of making a photovoltaic cell that uses the etching composition to etch the anti-reflection coating and a photovoltaic cell made by this method.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 22, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Angel R Cartagena, Feng Gao, Haixin Yang, Lei Zhang
  • Publication number: 20110278507
    Abstract: This invention provides a silver thick film paste composition comprising electrically conductive silver powder, one or more onium salts selected from the group consisting of iodonium salts and sulfonium, flux and an organic medium. Also provided are photovoltaic cells that contain an electrode made using these silver thick film paste compositions. Such photovoltaic cells show improved efficiencies.
    Type: Application
    Filed: May 11, 2010
    Publication date: November 17, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Angel R. Cartagena, Haixin Yang
  • Patent number: 8008179
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: August 30, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Ollivier
  • Patent number: 8002603
    Abstract: Described herein are methods of manufacturing an electrode and emitter in a field emission device, and devices formed from the methods. Compositions useful for the manufacture of an electrode and emitter in a field emission device are also described.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: August 23, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Haixin Yang, Lap-Tak Andrew Cheng, Terry Roland Suess, Chien Lung Weng
  • Publication number: 20110151153
    Abstract: Provided are donor articles comprising a donor substrate and a conductive layer, wherein the conductive layer comprises (a) at least one electrically conductive polymer; (b) a binder comprising a polymer selected from the group consisting of poly(2-alkyl-2-oxazoline), poly(vinylpyrrolidone-co-vinyl acetate), polyvinyl acetal, poly(3-morpholinylethylene), poly(2,4-dimethyl-6-triazinylethylene), poly(N-1,2,4-triazolylethylene), poly(vinylsulfate), poly(vinylformamide), and poly[N-(p-sulfophenyl)imino-3-hydroxymethyl-1,4-phenyleneimino-1,4-phenylene] or a combination thereof; and (c) a polyanion. Also provided are methods of transferring at least a portion of an electrically conductive layer from such a donor article to a receiver, the patterned receivers and patterned donor articles made by such methods, electronic devices comprising the patterned receivers, and electronic devices comprising the patterned donor articles.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: THOMAS C. FELDER, Feng Gao, Lynda Kaye Johnson, Haixin Yang
  • Publication number: 20100314988
    Abstract: Disclosed are novel photoimageable compositions for improving the emission of electron field emitters. These compositions are comprised of carbon nanotubes and metal resinate.
    Type: Application
    Filed: December 19, 2008
    Publication date: December 16, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Haixin Yang, Angel R. Cartagena, Terry Roland Suess
  • Publication number: 20100304558
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Ollivier
  • Publication number: 20100301479
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Olliver
  • Patent number: 7683107
    Abstract: The present invention provides a method for the deposition of an ink jet printable composition, to a substrate comprising: depositing an ink composition on a substrate by ink jet printing; wherein said composition comprises: (a) functional material; (b) organic polymer comprising polyvinylpyrrolidone; dispersed in (c) dispersion vehicle selected from organic solvent, water, or mixtures thereof; and wherein the viscosity of said composition is between 5 mPa·s to 50 mPa·s at a temperature of 25 to 35° C.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: March 23, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Haixin Yang
  • Patent number: 7645564
    Abstract: The invention is directed to a process and more particularly, to utilizing polymer solutions to make thick film compositions. In one embodiment the process is directed to the formation of photoimageable thick film compositions for use in photo-patterning methods to make photoimageable electrodes in flat panel display applications, including plasma display panels (PDP). Polymer solutions are obtained by directly polymerizing desired monomers in a desired solvent to form a desired polymer, rather than by dissolving a pre-made polymer in a desired solvent. Other ingredients are added to the polymer solution to directly form thick film pastes, including photoimageable thick film pastes.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: January 12, 2010
    Inventors: Haixin Yang, Pedro A. Jimenez, Cherng Y. Wang, Christopher John Roach, John Graeme Pepin, Michael F. Barker, Vincent Wen-Yuan Yeh
  • Publication number: 20090294741
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 3, 2009
    Applicant: E.I.DU PONT NEMOURS AND COMPANY
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Ollivier
  • Publication number: 20090284122
    Abstract: Described herein are methods of manufacturing an electrode and emitter in a field emission device, and devices formed from the methods. Compositions useful for the manufacture of an electrode and emitter in a field emission device are also described.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 19, 2009
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: HAIXIN YANG, LAP-TAK ANDREW CHENG, TERRY ROLAND SUESS, CHIEN LUNG WENG
  • Publication number: 20090111907
    Abstract: The present invention provides a screen printable hydrogel composition comprising: (a) soluble or partially soluble polymer wherein said polymer is a copolymer, interpolymer or mixture thereof; (b) initiation system; (c) thickener; (d) water; and (e) solvent; with the proviso that the composition has a viscosity of greater than about 10 Pa·s.
    Type: Application
    Filed: December 2, 2008
    Publication date: April 30, 2009
    Inventors: Haixin Yang, Lisa Marie Runge
  • Publication number: 20070208111
    Abstract: The invention is directed to a process and more particularly, to utilizing polymer solutions to make thick film compositions. In one embodiment the process is directed to the formation of photoimageable thick film compositions for use in photo-patterning methods to make photoimageable electrodes in flat panel display applications, including plasma display panels (PDP). Polymer solutions are obtained by directly polymerizing desired monomers in a desired solvent to form a desired polymer, rather than by dissolving a pre-made polymer in a desired solvent. Other ingredients are added to the polymer solution to directly form thick film pastes, including photoimageable thick film pastes.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 6, 2007
    Inventors: Haixin Yang, Pedro Jimenez, Cherng Wang, Christopher Roach, John Pepin, Michael Barker, Vincent Yeh
  • Patent number: 7214466
    Abstract: The invention is directed to a photoimageable composition comprising: (I) finely divided particles of inorganic material comprising: (a) functional phase particles selected from electrically conductive, resistive, and dielectric particles; (b) inorganic binder having a glass transition temperature in the range of from 325 to 600° C., a surface area of no greater than 10 m2/g and at least 85 wt. % of the particles having a size of 0.1–10 ?m; dispersed in: (II) an organic medium comprising: (a) aqueous developable polymer which is a copolymer, interpolymer or mixture thereof, wherein each copolymer or interpolymer comprises (1) a nonacidic comonomer comprising a C1-10 alkyl acrylate, C1-10 alkyl methacrylate, styrenes, substituted styrenes or combinations thereof and (2) an acidic comonomer comprising ethylenically unsaturated carboxylic acid containing moiety; (g) cationically polymerizable monomer; (h) photoinitiation system; and (i) organic solvent.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: May 8, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Haixin Yang, Mark R. McKeever
  • Publication number: 20070059459
    Abstract: The present invention provides an ink jet printable hydrogel composition comprising: (a) one or more cross-linkable ionic polymers wherein said polymer is a copolymer, interpolymer or mixture thereof; (b) initiation system; and (c) solvent; wherein said cross-linkable ionic polymers can be selected from photocross-linkable polymers, thermally cross-linkable polymers, photocross-linkable and thermally cross-linkable polymers, and mixtures thereof; and with the proviso that the composition has a viscosity of less than about 100 mPa·s.
    Type: Application
    Filed: September 12, 2005
    Publication date: March 15, 2007
    Inventor: Haixin Yang
  • Patent number: 7135267
    Abstract: The invention is directed to a photo-imageable composition precursor, the precursor composition comprising: (I) finely divided particles of inorganic material comprising: Functional phase particles selected from electrically conductive, resistive, and dielectric particles; inorganic binder having a glass transition temperature in the range of from 325 to 600° C.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: November 14, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Haixin Yang, Mark Robert McKeever
  • Publication number: 20060205866
    Abstract: The present invention provides a screen printable hydrogel composition comprising: (a) soluble or partially soluble polymer wherein said polymer is a copolymer, interpolymer or mixture thereof; (b) initiation system; (c) thickener; (d) water; and (e) solvent; with the proviso that the composition has a viscosity of greater than about 10 Pa·s.
    Type: Application
    Filed: May 16, 2006
    Publication date: September 14, 2006
    Inventors: Haixin Yang, Lisa Runge
  • Patent number: 7105588
    Abstract: The present invention provides a screen printable hydrogel composition comprising: (a) soluble or partially soluble polymer wherein said polymer is a copolymer, interpolymer or mixture thereof; (b) initiation system; (c) thickener; (d) water; and (e) solvent; with the proviso that the composition has a viscosity of greater than about 10 Pa·s.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: September 12, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Haixin Yang, Lisa Marie Runge