Patents Represented by Attorney Zosan S. Soong
  • Patent number: 6953060
    Abstract: An apparatus comprising: (a) a substrate including a level intermediate region disposed between a first end region and a second end region; (b) a first external member disposed circumferentially around the first end region in a continuous manner and protruding above the level intermediate region, thereby resulting in a deposition region including the surface of the first external member covering the first end region, an optional exposed first end region portion, and the intermediate region; and (c) a dip coated layer over the entire deposition region, wherein the portion of the dip coated layer over the first external member and the optional exposed first end region portion is formed prior to the portion of the dip coated layer over the intermediate layer.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: October 11, 2005
    Assignee: Xerox Corporation
    Inventors: Sean X. Pan, Mark S. Thomas, Mark C. Petropoulos
  • Patent number: 6905633
    Abstract: A compound having formula (3) wherein: D3 is an electron donor moiety; C3 is a conjugated bridging moiety; A3 is an electron acceptor moiety; S3 is a hydrocarbon, a heterocyclic moiety, or a hetero-acyclic moiety; and b? is an integer.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: June 14, 2005
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Peter M. Kazmaier
  • Patent number: 6890868
    Abstract: A process including: (a) selecting a composition including a polymer and a liquid, wherein the polymer exhibits lower solubility in the liquid at room temperature but exhibits greater solubility in the liquid at an elevated temperature, wherein the composition gels when the elevated temperature is lowered to a first lower temperature without agitation; (b) dissolving at the elevated temperature at least a portion of the polymer in the liquid; (c) lowering the temperature of the composition from the elevated temperature to the first lower temperature; (d) agitating the composition to disrupt any gelling, wherein the agitating commences at any time prior to, simultaneous with, or subsequent to the lowering the elevated temperature of the composition to the first lower temperature: (e) depositing a layer of the composition wherein the composition is at a second lower temperature lower than the elevated temperature; and (f) drying at least partially the layer.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: May 10, 2005
    Assignee: Xerox Corporation
    Inventors: Yiliang Wu, Ping Liu, Beng S. Ong, Dasarao K. Murti
  • Patent number: 6872426
    Abstract: An apparatus including: (a) a substrate including a deposition region and an optional uncoated region, wherein the deposition region includes a level intermediate region disposed between a first end region and a second end region, wherein the first end region includes a first recessed surface portion that increases the surface area of the first end region, wherein the first recessed surface portion is recessed below the level intermediate region, wherein the surface area of the first end region is greater by at least about 5% than the surface area of a hypothetical level first end region; and (b) a dip coated layer over the entire deposition region.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: March 29, 2005
    Assignee: Xerox Corporation
    Inventors: Philip G. Perry, Linnette Perales Rivera, Charles J. Urso, III
  • Patent number: 6869651
    Abstract: An apparatus including: (a) a substrate including a deposition region and an optional uncoated region, wherein the deposition region includes a level intermediate region disposed between a first end region and a second end region, wherein the first end region includes a first raised surface portion extending above the level intermediate region and extending circumferentially around the first end region in a continuous manner; and (b) a dip coated layer over the entire deposition region.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: March 22, 2005
    Assignee: Xerox Corporation
    Inventors: Sean X. Pan, Mark C. Petropoulos, Linnette Perales Rivera, Jeremy B. Pinsly, Zhilei Wang, Mark S. Thomas
  • Patent number: 6861664
    Abstract: An electronic device includes a semiconductor layer in contact with a number of electrodes, wherein the semiconductive layer includes a compound wherein either or both of the following geometric isomers of the compound are present: wherein: n is 1, 2 or 3 for the polycyclic moiety; and R1 and R2 are independently selected from the group consisting of a hydrocarbon ring and a heterocyclic group, wherein R1 and R2 are the same or different hydrocarbon ring, the same or different heterocyclic group, or one of R1 and R2 is the hydrocarbon ring and the other the heterocyclic group.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: March 1, 2005
    Assignee: Xerox Corporation
    Inventors: Beng S. Ong, Dasarao K. Murti, James M. Duff, Yiliang Wu
  • Patent number: 6858266
    Abstract: A device composed of: a liquid crystal composition including a liquid crystal and a liquid crystal domain stabilizing compound, wherein die liquid crystal composition is switchable between a strongly scattering state of a first plurality of smaller liquid crystal domains that strongly scatters a predetermined light and a weakly scattering state of a second plurality of larger liquid crystal domains that weakly scatters the predetermined light; and a liquid crystal containment structure defining a space for the liquid crystal composition.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: February 22, 2005
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Peter M. Kazmaier
  • Patent number: 6849204
    Abstract: A compound having formula (5) wherein: D5 is an electron donor moiety; C5 is a conjugated bridging moiety; A5 is an electron acceptor moiety; R5 is a spacer moiety; S5 is a hydrocarbon, a heterocyclic moiety, or a hetero-acyclic moiety; and c? is an integer.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: February 1, 2005
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Peter M. Kazmaier
  • Patent number: 6841932
    Abstract: A display device composed of: (a) a cathode; (b) an anode; (c) a luminescent region between the cathode and the anode; and an optional region adjacent one of the electrodes, wherein at least one of the cathode, the anode, the luminescent region, and the optional region includes a metal-organic mixed layer composed of: (i) an inorganic metal containing material, (ii) an organic material, and (iii) optionally, at least one component selected from the group consisting of metals, organic materials, and inorganic materials.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: January 11, 2005
    Assignee: Xerox Corporation
    Inventors: Hany Aziz, Yoon-Fei Liew, Zoran D. Popovic, Nan-Xing Hu, Anthony J. Paine
  • Patent number: 6824708
    Abstract: A device composed of: (1) a liquid crystal composition including a liquid crystal, a liquid crystal domain stabilizing compound, and a dispersant, wherein the liquid crystal composition is switchable between a strongly scattering state of a first plurality of smaller liquid crystal domains that strongly scatters a predetermined light and a weakly scattering state of a second plurality of larger liquid crystal domains that weakly scatters the predetermined light; and (2) a liquid crystal containment structure defining a space for the liquid crystal composition.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: November 30, 2004
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Peter M. Kazmaier
  • Patent number: 6794102
    Abstract: A compound having the Formula I wherein: R1 is independently selected from the group consisting of a hetero atom containing group and a hydrocarbon group that is optionally substituted at least once with a hetero atom moiety; R2 and R3 are independently selected from the group consisting of hydrogen, a halogen, a hetero -atom containing group and a hydrocarbon group that is optionally substituted at least once with a hetero atom moiety; and R4, R5, R6, R7, R8, R9, R10 and R11 are independently selected from the group consisting of a nitrogen containing group, a sulfur containing group, a hydroxyl group, a silicon containing group, hydrogen, a halogen, a hetero atom containing group and a hydrocarbon group that is optionally substituted at least once with a hetero atom moiety.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: September 21, 2004
    Assignee: Xerox Corporation
    Inventors: Timothy P. Bender, John F. Graham, James M. Duff
  • Patent number: 6774393
    Abstract: A field effect transistor composed of: an insulating layer; a gate electrode; a semiconductor layer including an organic semiconductor material and a binder resin; a source electrode; and a drain electrode, wherein the insulating layer, the gate electrode, the semiconductor layer, the source electrode, and the drain electrode are in any sequence as long as the gate electrode and the semiconductor layer both contact the insulating layer, and the source electrode and the drain electrode both contact the semiconductor layer.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: August 10, 2004
    Assignee: Xerox Corporation
    Inventors: Dasarao K. Murti, Beng S. Ong, James M. Duff
  • Patent number: 6767974
    Abstract: A process including: heating to a first polymerization temperature a first mixture composed of a first free radical polymerizable monomer, a first free radical initiator, and a first stable free radical compound to polymerize only a portion of the first monomer, resulting in a prepolymer composition; shearing a second mixture including the prepolymer composition, a continuous phase liquid, and a stabilizing compound to create a miniemulsion; and heating to a second polymerization temperature the miniemulsion to form polymeric particles, wherein there is added to the second mixture, the miniemulsion, or both the second mixture and the miniemulsion at any time prior to the formation of the polymeric particles a second free radical initiator, a second free radical polymerizable monomer, and an optional second stable free radical compound, wherein at least one of the second initiator and the second monomer includes a functional group, wherein the polymeric particles each includes a compound with the functional
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: July 27, 2004
    Assignee: Xerox Corporation
    Inventors: Barkev Keoshkerian, Thomas E. Enright
  • Patent number: 6767480
    Abstract: A compound having formula (1) wherein: A1 is an electron acceptor moiety; C1 is a conjugated bridging moiety; D1 is an electron donor moiety, S1 is a hydrocarbon, a heterocyclic moiety, or a hetero-acyclic moiety; and a′ is an integer, excluding an excluded compound defined by a′ is 2, A1 is cyano, C1 is phenyl, D1 is nitrogen, and each S1 is the same alkyl group.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: July 27, 2004
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Peter M. Kazmaier
  • Patent number: 6764802
    Abstract: A process including: agitating a mixture including a liquid and a plurality of resin particles within a vessel at a first shear condition; circulating a portion of the mixture from the vessel through a mixer; adding not all at once an aggregating agent for the resin particles and mixing the aggregating agent with the circulating mixture portion within the mixer at a second shear condition more intensive than the first shear condition to result in a post-mixer circulating composition; and returning the post-mixer circulating composition to the vessel wherein the post-mixer circulating composition undergoes the agitating at the first shear condition.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: July 20, 2004
    Assignee: Xerox Corporation
    Inventors: Milan Maric, Alan E. J. Toth, Thomas E. Enright, Marko D. Saban
  • Patent number: 6750609
    Abstract: An organic light emitting device composed of: a first electrode; a second electrode; and a luminescent region including an organic electroluminescent material between the first electrode and the second electrode, wherein one of the first electrode and the second electrode includes both a substantially transparent charge injecting layer adjacent to the luminescent region and an electrically conductive light absorbing layer.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: June 15, 2004
    Assignee: Xerox Corporation
    Inventors: Hany Aziz, Nan-Xing Hu, Zoran D. Popovic, James M. Duff
  • Patent number: 6743390
    Abstract: A method of treating a flexible multi-layer member exhibiting a glass transition temperature and including a surface layer, the method composed of: moving the member through a member path including: a contact zone defined by contact of the member with an arcuate surface including a curved contact zone region; a pre-contact member path before the contact zone; and a post-contact member path after the contact zone; heating sequentially each portion of the surface layer such that each of the heated surface layer portions has a temperature above the glass transition temperature while in the curved contact zone region; and cooling sequentially each of the heated surface layer portions while in the contact zone such that the temperature of each of the heated surface layer portions falls to below the glass transition temperature prior to each of the heated surface layer portions exiting the curved contact zone region, thereby defining a cooling region, wherein the heating is accomplished in a heating region encompas
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: June 1, 2004
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, John A. Bergfjord, Sr.
  • Patent number: 6669850
    Abstract: A purification process composed of: contacting a contaminated composition including an optional fluid, a polymer, and an impurity with an adsorbent composition including an adsorbent, wherein the adsorbent is selected from the group consisting of an alumina and a magnesium sulfate, wherein a portion of the impurity binds to the adsorbent, wherein the polymer is a polycarbonate, a carbazole, a polyarylate, or a copolyester having the formula where n is the degree of polymerization.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: December 30, 2003
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, John F. Yanus, Markus R. Silvestri, Damodar M. Pai, Samuel Kaplan, Raymond K. Crandall, Kathleen M. Carmichael, David J. Maty
  • Patent number: 6652910
    Abstract: An apparatus, to be used when an open end of a hollow substrate contacts a coating solution to define a solution free interior portion of the substrate, for controlling the level of the coating solution relative to the substrate interior, the apparatus including: a gas container capable of changing in volume; a channel connecting the gas container to the solution free interior portion of the substrate to allow gas flow in either direction between the gas container and the solution free interior portion; and pressure means for exerting a changeable, continuous pressure on the gas container that automatically exerts an increasingly greater pressure on the gas container as the gas container expands in volume and that automatically exerts a decreasingly lesser pressure on the gas container as the gas container decreases in volume.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: November 25, 2003
    Assignee: Xerox Corporation
    Inventors: Sean X. Pan, Mark C. Petropoulos
  • Patent number: 6600888
    Abstract: A method including: (a) dispensing an electrically conductive liquid into a contact member permeable to the liquid; (b) rubbing the contact member and a surface against each other, at a contact length greater than a tangential contact length, to release the liquid from the contact member to wet the surface with the electrically conductive liquid in a layer ranging in thickness from about 1 to about 100 micrometers; and (c) electrifying the liquid at any time effective for imparting an electrical charge to the surface.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: July 29, 2003
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Zoran D. Popovic, Anthony M. Horgan, Robert C. U. Yu, Geoffrey M. T. Foley, Huoy-Jen Yuh, Eugene A. Swain