Patents by Inventor Beng S. Ong

Beng S. Ong 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: 20030171531
    Abstract: Polythiophenes of the formula 1
    Type: Application
    Filed: January 11, 2002
    Publication date: September 11, 2003
    Applicant: Xerox Corporation
    Inventors: Beng S. Ong, Ping Liu, Lu Jiang, Yu Qi, Yiliang Wu
  • Publication number: 20030166829
    Abstract: A polythiophene wherein the monomer segments thereof contain 1
    Type: Application
    Filed: January 11, 2002
    Publication date: September 4, 2003
    Applicant: Xerox Corporation
    Inventors: Beng S. Ong, Ping Liu, Yiliang Wu, Yu Qi
  • Publication number: 20030164495
    Abstract: An electronic device containing a polythiophene derived from a monomer segment or monomer segments containing two 2,5-thienylene segments, (I) and (II), and an optional divalent linkage D 1
    Type: Application
    Filed: August 29, 2002
    Publication date: September 4, 2003
    Applicant: Xerox Corporation
    Inventors: Beng S. Ong, Ping Liu, Yiliang Wu, Yu Qi
  • Publication number: 20030160234
    Abstract: An electronic device containing a polythiophene derived from a monomer segment or monomer segments containing two 2,5-thienylene segments, (I) and (II), and an optional divalent linkage D 1
    Type: Application
    Filed: January 11, 2002
    Publication date: August 28, 2003
    Applicant: Xerox Corporation
    Inventors: Beng S. Ong, Ping Liu, Yiliang Wu, Yu Qi
  • Publication number: 20030160230
    Abstract: An electronic device containing a polythiophene 1
    Type: Application
    Filed: January 11, 2002
    Publication date: August 28, 2003
    Applicant: Xerox Corporation
    Inventors: Beng S. Ong, Ping Liu, Lu Jiang, Yu Qi, Yiliang Wu
  • Publication number: 20030144466
    Abstract: Polythiophenes of the formula 1
    Type: Application
    Filed: January 11, 2002
    Publication date: July 31, 2003
    Applicant: Xerox Corporation
    Inventors: Beng S. Ong, Lu Jiang, Yiliang Wu, Dasarao K. Murti
  • Publication number: 20030136958
    Abstract: An electronic device containing a polythiophene of Formula (I) 1
    Type: Application
    Filed: January 11, 2002
    Publication date: July 24, 2003
    Applicant: Xerox Corporation
    Inventors: Beng S. Ong, Lu Jiang, Yiliang Wu, Dasarao K. Murti
  • Publication number: 20030112490
    Abstract: A display material for use in an electric paper system includes two opposing outer surfaces, between which is disposed a plurality of optically and electrically anisotropic elements suspended in a substance capable of being liquified. A rotatable disposition of each element is achievable while the element is suspended in the substance and the substance is liquified.
    Type: Application
    Filed: July 12, 2002
    Publication date: June 19, 2003
    Applicant: Xerox Corporation
    Inventors: Guerino G. Sacripante, H. Bruce Goodbrand, Beng S. Ong, Robert A. Sprague
  • Patent number: 6495300
    Abstract: A photoconductive imaging member containing an optional supporting substrate, a photogenerating layer, a charge transport layer, and an overcoating layer comprised of a crosslinked composite polysiloxane-silica generated from the reaction of a silyl-functionalized hydroxyalkyl polymer of Formula (I) with an organosilane of Formula (II) in the presence of silica particles and water wherein A, B, D, and F represent the segments of the polymer backbone; E is a hole transporting moiety; X is selected from the group consisting of halide, cyano, alkoxy, acyloxy, and aryloxy; a, b, c, and d each represent mole fractions of the repeating monomer units such that the sum of a+b+c+d is equal to about 1; R is alkyl, substituted alkyl, aryl, or substituted aryl, and R1, R2, and R3 are independently selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, acyloxy, halide, cyano, and amino, subject to the provision that two of R1, R2, and R3 are each independently selected from th
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: December 17, 2002
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Beng S. Ong, Cheng-Kuo Hsiao, Ping Liu, Huoy-Jen Yuh, John S. Chambers, Helen R. Cherniack
  • Patent number: 6444386
    Abstract: A photoconductive imaging member containing a supporting substrate, a hole blocking layer thereover, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is generated from crosslinking an organosilane (I) in the presence of a hydroxy-functionalized polymer (II) for example, wherein R is alkyl or aryl, R1, R2, and R3 are independently selected from the group consisting of alkoxy, aryloxy, acyloxy, halide, cyano, and amino; A and B are respectively divalent and trivalent repeating units of polymer (II); D is a divalent linkage; x and y represent the mole fractions of the repeating units of A and B, respectively, and wherein x is from about 0 to about 0.99, and y is from about 0.01 to about 1, and wherein the sum of x+y is equal to about 1.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: September 3, 2002
    Assignee: Xerox Corporation
    Inventors: Ping Liu, Cheng-Kuo Hsiao, Beng S. Ong, Timothy J. Fuller, Huoy-Jen Yuh, Helen R. Cherniack, Markus R. Silvestri
  • Patent number: 6322941
    Abstract: A photoconductive imaging member containing a photogenerating layer comprised of a mixture of perylenes, wherein the mixture comprises, for example, (1) 1,3-bis(n-pentylimidoperyleneimido) propane (Formula A), 1,3-bis(2-methylbutylimido peryleneimido)propane (Formula B) and 1-(n-pentylimidoperyleneimido)-3-(2-methylbutyl imidoperyleneimido)-propane (Formula C), and (2) an electron acceptor component polymer
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: November 27, 2001
    Assignee: Xerox Corporation
    Inventors: Cheng-Kuo Hsiao, Ping Liu, Ah-Mee Hor, Beng S. Ong
  • Patent number: 6309785
    Abstract: A photoconductive imaging member includes a photogenerating layer and a charge transport layer, wherein the charge transport layer contains charge transport components and a poly(imide-carbonate) binder of general structure (I) or general structure(II): where A, B, and E are divalent linkages; D is a trivalent linkage in (I) and a tetravalent linkage in (II); and x and y are the mole fractions of the repeating units such that x+y is equal to 1. The poly(imide carbonates)s can be made by interfacial polycondensation of bischloroformate, bis(imidephenol) and bisphenol.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: October 30, 2001
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Beng S. Ong, Ping Liu, C. Geoffrey Allen
  • Patent number: 6287737
    Abstract: A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer thereover, a photogenerating layer and a charge transport layer, and wherein the hole blocking layer is comprised of a crosslinked polymer derived from the reaction of a silyl-functionalized hydroxyalkyl polymer of Formula (I) with an organosilane of Formula (II) and water wherein A, B, D, and F represent the segments of the polymer backbone; E is an electron transporting moiety; X is selected from the group consisting of halide, cyano, alkoxy, acyloxy, and aryloxy; a, b, c, and d are mole fractions of the repeating monomer units such that the sum of a+b+c+d is equal to 1; R is alkyl, substituted alkyl, aryl, or substituted aryl; and R1, R2, and R3 are independently selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, acyloxy, halogen, cyano, and amino, subject to the provision that two of R1, R2, and R3 are independently selected from the group consisting of alkoxy, aryl
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: September 11, 2001
    Assignee: Xerox Corporation
    Inventors: Beng S. Ong, Ping Liu, Cheng-Kuo Hsiao, Huoy-Jen Yuh, John S. Chambers, Damodar M. Pai, Markus R. Silvestri, Kathleen M. Carmichael
  • Patent number: 6277535
    Abstract: An electrophotographic imaging member includes a supporting substrate, an undercoating layer, an optional adhesive layer, a photogenerating layer, and a charge transporting layer.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: August 21, 2001
    Assignee: Xerox Corporation
    Inventors: Ping Liu, Yu Qi, Beng S. Ong, Cheng-Kuo Hsiao, Helen R. Cherniack, Huoy-Jen Yuh
  • Patent number: 6229012
    Abstract: A triazine compound of the formula wherein Ar1, Ar2, Ar3, and Ar4 are each an aryl, aliphatic, or a mixture of aryl and aliphatic; R1 and R2 are selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, halogen, and cyano; and L is L(n) wherein n is zero or 1, said L being a divalent group.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: May 8, 2001
    Assignee: Xerox Corporation
    Inventors: Nan-Xing Hu, Zoran D. Popovic, Beng S. Ong, Hany Aziz
  • Patent number: 6225467
    Abstract: The triazine wherein Ar1, Ar2, Ar3, and Ar4 are each independently an aryl; R1 and R2 are substituents selected from the group consisting of hydrogen, an alkyl, an aryl, an alkoxy, a halogen atom, and a cyano; R3 and R4 are each a divalent group L selected from the group consisting of —C(R′R″)—, alkylene, an oxygen atom, a sulfur atom, and —Si(R′R″)—, wherein R′ and R″ are selected from the group consisting of hydrogen, alkyl, alkoxy, and aryl.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: May 1, 2001
    Assignee: Xerox Corporation
    Inventors: Mohammad Esteghamatian, Nan-Xing Hu, Zoran D. Popovic, Ah-Mee Hor, Beng S. Ong
  • Patent number: 6214505
    Abstract: A photoconductive imaging member containing a photogenerating layer and a charge transport layer, and wherein the charge transport layer contains a poly(imide-carbonate) resin binder of (I) or (II) wherein A, B and E are divalent linkages; D is a trivalent linkage in (I) and a tetravalent linkage in (II); and x and y represent mole fractions wherein the sum of x+y is equal to 1.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: April 10, 2001
    Assignee: Xerox Corporation
    Inventors: Beng S. Ong, Yu Qi, Cheng-Kuo Hsiao
  • Patent number: 6074791
    Abstract: A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer thereover, a photogenerating layer and a charge transport layer, and wherein the hole blocking layer is comprised of a metal oxide prepared by a sol-gel process.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: June 13, 2000
    Assignee: Xerox Corporation
    Inventors: Carol A. Jennings, Dasarao K. Murti, Paul F. Smith, Gwynne E. McAneney, Ah-Mee Hor, Sandra J. Gardner, Beng S. Ong
  • Patent number: 6068961
    Abstract: A process for the preparation of toner generated by mixing (1) a colorant dispersion preferably containing a nonionic surfactant, and (2) a latex emulsion, and wherein the latex emulsion preferably contains resin, or polymer and a surfactant, and wherein the colorant nonionic surfactant is of the Formulas (I) or (II), or optionally mixtures thereof ##STR1## wherein R.sup.1 is a hydrophobic aliphatic, or hydrophobic aromatic group; R.sup.2 is selected from the group consisting of hydrogen, alkyl, aryl, alkylaryl, and alkylarylalkyl; R.sup.3 is hydrogen or alkyl; A is a hydrophilic polymer chain, and m represents the number of A segments.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: May 30, 2000
    Assignee: Xerox Corporation
    Inventors: Beverly C. Dutoff, Paul F. Smith, Raymond W. Wong, Beng S. Ong
  • Patent number: 6057048
    Abstract: An electroluminescent device comprised of an anode, a hole transporting layer, a light emitting layer, and a cathode, wherein said light emitting layer contains a component of the formula ##STR1## wherein Ar.sup.1, Ar.sup.2, Ar.sup.3, and Ar.sup.4 are each independently aryl or optionally aliphatic; R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, aliphatic, halogen, and cyano; L is a suitable linking group; and n is a number of from 0 to about 3.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: May 2, 2000
    Assignee: Xerox Corporation
    Inventors: Nan-Xing Hu, Mohammad Esteghamatian, Yu Qi, Zoran D. Popovic, Beng S. Ong, Ah-Mee Hor