Patents by Inventor Che-Hsiung Hsu

Che-Hsiung Hsu 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).

  • Publication number: 20110024693
    Abstract: The present invention relates to methods of making derivatized 3,4-alkylenedioxythiophene monomers and methods of using the 3,4-alkylenedioxythiophene monomers.
    Type: Application
    Filed: October 13, 2010
    Publication date: February 3, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Shawn Yeisley, Charles J. Dubois, Che-Hsiung Hsu, Steven W. Shuey, Yulong Shen, Hjalti Skulason
  • Publication number: 20110006293
    Abstract: Organic electronic devices derived from electrically conductive polymer compositions having a pH greater than 1.8 and a hole transporting material are described.
    Type: Application
    Filed: September 22, 2010
    Publication date: January 13, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Che-Hsiung Hsu, Kim Sunghan, Nora Sabina Radu, William J. Gambogi
  • Patent number: 7838688
    Abstract: The present invention relates to methods of making derivatized 3,4-alkylenedioxythiophene monomers and methods of using the 3,4-alkylenedioxythiophene monomers.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: November 23, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Shawn Yeisley, Charles J Dubois, Jr., Che-Hsiung Hsu, Steven W Shuey, Yulong Shen, Hjalti Skulason
  • Patent number: 7837902
    Abstract: Compositions are provided comprising at least one conductive polymer and at least one non-polymeric fluorinated organic acid, salt or ester, wherein the conductive polymer is selected from a polythiophene, a polypyrrole, a polyaniline, and combinations thereof. Electronic devices and applications having at least one layer comprising such compositions are further provided.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: November 23, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Mark Andrew Harmer, Chrisopher P. Junk
  • Patent number: 7837901
    Abstract: There are provided electrically conducting polymer compositions comprising an electrically conductive polymer or copolymer and an organic solvent wettable fluorinated acid polymer. Electrically conductive polymer materials are derived from thiophene, pyrrole, aniline and polycyclic heteroaromatic precursor monomers. Non-conductive polymers derived from alkenyl, alkynyl, arylene, and heteroarylene precursor monomers. The organic-solvent wettable fluorinated acid polymer is fluorinated or highly fluorinated and may be colloid-forming. Acidic groups include carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The compositions can be used in organic electronic devices.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: November 23, 2010
    Assignees: E. I. du Pont de Nemours and Company, DuPont Displays Inc
    Inventors: Che-Hsiung Hsu, Christopher P. Junk, Frank P. Uckert, Mark F. Teasley, Andrew Edward Feiging, Charles J. Dubois, Natalie Daoud, Viascheslav A. Petrov, Zheng-Yu Yang, Amy Qi Han, legal representative
  • Publication number: 20100270514
    Abstract: There is provided a transparent conductor including conductive nanoparticles and at least one of (a) a fluorinated acid polymer and (b) a semiconductive polymer doped with a fluorinated acid polymer. The nanoparticles are carbon nanoparticles, metal nanoparticles, or combinations thereof. The carbon and metal nanoparticles are selected from nanotubes, fullerenes, and nanofibers. The acid polymers are fluorinated or highly fluorinated and have acidic groups including carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The semiconductive polymers comprise homopolymers and copolymers derived from monomers selected from substituted and unsubstituted thiophenes, pyrroles, anilines, and cyclic heteroaromatics, and combinations of those. The compositions may be used in organic electronic devices (OLEDs).
    Type: Application
    Filed: July 2, 2010
    Publication date: October 28, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: CHE-HSIUNG HSU, Hjalti Skulason
  • Patent number: 7815818
    Abstract: Compositions comprising at least one conductive polymer and an organic cation are provided, and methods for making the same.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: October 19, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Ed Sundaram Ramakrishnan, Dmitry Kolosov
  • Publication number: 20100247923
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion including: (i) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid; (ii) at least one highly-fluorinated acid polymer; (iii) at least one high-boiling polar organic solvent, and (iv) nanoparticles of at least one semiconductive metal oxide. The composition may further include an additive which can be one or more of fullerenes, carbon nanotubes, or combinations thereof.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 30, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Che-Hsiung Hsu
  • Publication number: 20100213446
    Abstract: The present invention relates to buffer bilayers, and their use in electronic devices. The bilayer has a first layer including at least one electrically conductive polymer doped with at least one highly-fluorinated acid polymer. The second layer is a reacted layer from a metal which can be one or more transition metals, Group 13 metals, Group 14 metals, or lanthanide metals.
    Type: Application
    Filed: December 23, 2009
    Publication date: August 26, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Chi Zhang, Che-Hsiung Hsu
  • Patent number: 7781550
    Abstract: Disclosed are compositions comprising: at least one monomer of the formula: where SiR?RR? is SiCl3, Si(alkyl)Cl2, Si(alkyl)(O-alkyl)2, or Si(O-alkyl)3; n and y are each 0 or an integer from 1 to 10; and at least one particle comprising silica, alumina, zirconia, or mixtures thereof.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: August 24, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Nora Sabina Radu, Mark Andrew Harmer
  • Publication number: 20100207109
    Abstract: The present invention relates to buffer bilayers, and their use in electronic devices. The bilayer has a first layer including (i) at least one electrically conductive polymer doped with at least one non-fluorinated polymeric acid and (ii) at least one highly-fluorinated acid polymer. The bilayer has a second layer which is a reacted layer from a metal which can be one or more transition metals, Group 13 metals, Group 14 metals, or lanthanide metals.
    Type: Application
    Filed: December 23, 2009
    Publication date: August 19, 2010
    Applicant: E.I.DU PONT DE NEMOURS AND COMPANY
    Inventors: CHE-HSIUNG HSU, Chi Zhang
  • Publication number: 20100187509
    Abstract: There is provided a vinylphenoxy polymer having at least one monomeric unit selected from the group consisting of Formula Ia, Formula Ib and Formula Ic: In the formulae: Y is —OR1SO3Z; R1 is an alkylene group having 1-10 carbon atoms; R2 is an alkyl group or alkoxy group; Z is H or a Group 1 metal; a is an integer from 0 to 4; b is an integer from 0 to 3; and c is an integer from 0 to 2.
    Type: Application
    Filed: December 22, 2009
    Publication date: July 29, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Shawn Yeisley, Che-Hsiung Hsu
  • Publication number: 20100187982
    Abstract: The present invention relates to buffer bilayers, and their use in electronic devices. The bilayer has a first layer including (a) at least one electrically conductive polymer doped with at least one non-highly-fluorinated acid polymer and (b) at least one highly-fluorinated acid polymer, and a second layer including inorganic nanoparticles which are oxides or sulfides.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 29, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Che-Hsiung Hsu, Weiying Gao, Shiva Prakash
  • Patent number: 7749407
    Abstract: There is provided a transparent conductor including conductive nanoparticles and at least one of (a) a fluorinated acid polymer and (b) a semiconductive polymer doped with a fluorinated acid polymer. The nanoparticles are carbon nanoparticles, metal nanoparticles, or combinations thereof. The carbon and metal nanoparticles are selected from nanotubes, fullerenes, and nanofibers. The acid polymers are fluorinated or highly fluorinated and have acidic groups including carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The semiconductive polymers comprise homopolymers and copolymers derived from monomers selected from substituted and unsubstituted thiophenes, pyrroles, anilines, and cyclic heteroaromatics, and combinations of those. The compositions may be used in organic electronic devices (OLEDs).
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: July 6, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason
  • Patent number: 7744777
    Abstract: An electronic device is provided which is a thin field effect transistor, a field effect resistance device, photosensor, photoswitch, light-emitting diode, light-emitting diode display, phototransistor, phototube, IR detector, diode laser, electrochemic displays, electromagnetic shielding device, solid electrolyte capacitors, energy storage device, memory storage device, biosensor, photoconductive cell, photovoltaic device, solar cell or diode, and comprises at least one layer comprising a composition comprising at least one polyaniline and at least one colloid-forming polymeric acid. Methods for making such devices are also provided.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Frank P. Uckert
  • Patent number: 7732062
    Abstract: Provided are organic n-doped electron transport layers comprising at least one electron transport material and at least one electron rich dopant material and organic p-doped hole injection layers comprising at least one hole transport material and at least one electron deficient dopant material.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: June 8, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Weiying Gao, Hong Meng
  • Patent number: 7727421
    Abstract: There is provided an electrically conductive polymer composition, comprising a first electrically conductive polymer doped with an organic solvent wettable fluorinated acid polymer in admixture with a second electrically conductive polymer doped with an organic solvent non-wettable fluorinated acid polymer.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: June 1, 2010
    Assignee: E. I. du Pont de Nemours and Company duPont Displays Inc
    Inventors: Che-Hsiung Hsu, Sunghan Kim, Ian Storms Moody
  • Publication number: 20100127222
    Abstract: There is provided a transparent conductor including conductive nanoparticles and at least one of (a) a fluorinated acid polymer and (b) a semiconductive polymer doped with a fluorinated acid polymer. The nanoparticles are carbon nanoparticles, metal nanoparticles, or combinations thereof. The carbon and metal nanoparticles are selected from nanotubes, fullerenes, and nanofibers. The acid polymers are fluorinated or highly fluorinated and have acidic groups including carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The semiconductive polymers comprise homopolymers and copolymers derived from monomers selected from substituted and unsubstituted thiophenes, pyrroles, anilines, and cyclic heteroaromatics, and combinations of those. The compositions may be used in organic electronic devices (OLEDs).
    Type: Application
    Filed: June 28, 2006
    Publication date: May 27, 2010
    Inventors: Che-Hsiung Hsu, Hjalti Skulason
  • Patent number: 7722785
    Abstract: The present disclosure relates to electrically conductive polymer compositions, comprising at least one electrically conductive copolymer; and at least one fluorinated acid polymer, their use in organic electronic devices, and methods for preparation.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 25, 2010
    Assignees: E.I. du Pont de Nemours and Company, Dupont Displays Inc.
    Inventors: Che-Hsiung Hsu, Sunghan Kim, Charles J. Dubois, Christopher P. Junk, Andrew Edward Feiring, Zhen-Yu Yang, Amy Qi Han, legal representative, Mark F. Teasley, Viacheslav A. Petrov
  • Patent number: 7700008
    Abstract: Buffer compositions comprising semiconductive oxide particles and at least one of (a) a fluorinated acid polymer and (b) a semiconductive polymer doped with a fluorinated acid polymer are provided. Semiconductive oxide particles include metal oxides and bimetallic oxides. Acid polymers are derived from monomers or comonomers of polyolefins, polyacrylates, polymethacrylates, polyimides, polyamides, polyaramids, polyacrylamides, polystyrenes. The polymer backbone, side chains, pendant groups or combinations thereof may be fluorinated or highly fluorinated. Semiconductive polymers include polymers or copolymers derived from thiophenes, pyrroles, anilines, and polycyclic heteroaromatics. Methods for preparing buffer compositions are also provided.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: April 20, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason, Mark T. Martello