Patents by Inventor Hany Aziz

Hany Aziz 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: 20100068636
    Abstract: Disclosed is an electrophotographic imaging member including a substrate; a charge generating layer; a charge transport layer with a hole transport material; and a protective overcoat layer having a silicone polyether additive with at least one carbinol function group; a polyol binder; a hole transport material; a curing agent; and an acid catalyst.
    Type: Application
    Filed: November 27, 2007
    Publication date: March 18, 2010
    Applicant: XEROX CORPORATION
    Inventors: Hany AZIZ, Kathy L. DE JONG, Nan-Xing HU, Jennifer A. COGGAN, Johann JUNGINGER, Ah-Mee HOR
  • Patent number: 7645548
    Abstract: A coating composition having a polymer resin composition containing at lest an acid catalyst and a masking agent, wherein the masking agent is selected from the group consisting of compound A, compound B, and the acylated derivatives of compound A, where compound A is given by the structural formula (I): where X represents a substituent selected from the group consisting of —OR and —NR?R?, wherein R, R?, and R? each independently represent a hydrogen atom or a hydrocarbyl group; and compound B is given by the structural formula (II): where Y and Z independently represent —OH or —NH2.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: January 12, 2010
    Assignee: Xerox Corporation
    Inventors: Kathy L. De Jong, Hany Aziz, Nan-Xing Hu
  • Patent number: 7645525
    Abstract: An organic electroluminescent device includes an anode, a cathode, and a light emitting zone including a material that at least one of reduces triplet/triplet interaction, reduces triplet/singlet interaction, and reduces singlet/singlet interaction.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: January 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hany Aziz, Zoran D. Popovic, Nan-Xing Hu, Jennifer A. Coggan, Anthony J. Paine
  • Patent number: 7638206
    Abstract: This invention discloses a new class of bifunctional blue emitting materials for organic electroluminescent (EL) applications. These compounds contain two functionalities: an emission chromophore comprised of an anthryl group and an electron transport group. Employment of these compounds improves device efficiency and stability.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 29, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jennifer A. Coggan, Nan-Xing Hu, Hany Aziz, George Vamvounis
  • Publication number: 20090226829
    Abstract: Described herein are photoreceptor devices that include aligned domains of charge transport materials that have a pi-pi orbital overlap.
    Type: Application
    Filed: October 1, 2008
    Publication date: September 10, 2009
    Applicant: XEROX CORPORATION
    Inventors: Hany AZIZ, Kathy L. DE JONG
  • Patent number: 7553559
    Abstract: Novel organic light emitting devices (OLEDs) with hexatriene derivative compounds that allow for the creation of brighter, more efficient, and more stable blue light emitting device. The class of compounds used in this novel class of OLEDs include compounds selected from the group consisting of general formulas: wherein R is a substituent selected from the group consisting of hydrogen, and substituted or unsubstituted aryl or heteroaryl, phenyl, tolyl, xylyl tert-butylphenyl, methoxyphenyl, 3,5-diphenylphenyl, 3,5-bis(p-tert-butylphenyl)phenyl, biphenyl, naphthyl, anthryl, phenylanthryl, diphenylanthryl, and halophenyl.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: June 30, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jennifer A. Coggan, Hany Aziz
  • Patent number: 7553592
    Abstract: An electrophotographic imaging member includes at least one layer including a hole transport material and a strong electron acceptor material, such as an electrophotographic imaging member including a substrate, a charge generating layer, a hole transport layer, and an optional overcoating layer, wherein at least one layer of the electrophotographic imaging member comprises a strong electron acceptor material.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: June 30, 2009
    Assignee: Xerox Corporation
    Inventors: Hany Aziz, Gregory McGuire, Johann Junginger
  • Publication number: 20090117476
    Abstract: Disclosed is an electrophotographic imaging member that includes a substrate; a charge generating layer; a charge transport layer; and a protective overcoat layer having a polyol binder; a hole transport material; an acid catalyst; a leveling agent; and no melamine formaldehyde curing agent or cross-linking additive. Also disclosed is a process for forming a photoreceptor that includes providing a substrate; applying to it a charge generating layer, charge transport layer; and protective over coating layer having a polyol binder; a hole transport material; an acid catalyst; a leveling agent; and no melamine formaldehyde curing agent or cross-linking additive. Additionally provided is a method of forming an image with the disclosed electrophotographic imaging member.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 7, 2009
    Applicant: XEROX CORPORATION
    Inventors: Matthew A. HEUFT, Hany AZIZ, Kathy L. DE JONG, Nan-Xing HU
  • Publication number: 20090004587
    Abstract: A layer on the reverse side of an imaging member provides excellent crack resistance to the imaging layer(s) on the front side. The crack-deterring backing layer can be a laminated self-adhesive, such as tape, or a coating. Because the crack-deterring backing layer is on the reverse side, it does not affect the electrical properties of the imaging member. Overcoat layers may be used whose function is limited to improved scratch resistance.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 1, 2009
    Inventors: Mohamed Ismail Abu-Abed, Johann E. Junginger, Hany Aziz, Greg McGuire
  • Publication number: 20080299472
    Abstract: A coating composition that contains a mixture of an alkyl alcohol, a glycol monoether, a charge transport component, a crosslinking component, and at least one hydroxyl containing polymer, and a photoconductor thereof with a supporting substrate, a photogenerating layer, and at least one charge transport layer, and an overcoating layer in contact with and contiguous to the charge transport layer, and which overcoating is comprised of a mixture of an alkyl alcohol, a glycol monoether, an acrylated polyol, a polyalkylene glycol, a crosslinking component, and a charge transport component.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Inventors: Kathy L. DeJong, Nan-Xing Hu, Hany Aziz, Jennifer A. Coggan, Johann Junginger, Ah-Mee Hor, John F. Yanus, Kenny-Tuan Dinh
  • Publication number: 20080299474
    Abstract: A high quality hole transport material of a substituted biphenyl diamine, such as N,N,N?N?-tetra(4-methylphenyl)-(1,1?-biphenyl)-4,4?-diamine, where each X is independently selected from —H, alkyl(-CnH2n+1), where n is from 1 to about 10 such as from 1 to about 5 or from 1 to about 6, aralkyl and aryl groups, the aralkyl and aryl groups having, for example, from about 5 to about 30, such as about 6 to about 20 carbon atoms, where the purity of the hole transport material is from about 80 percent to about 100 percent, and when incorporated into a photoreceptor, the photoreceptor discharges from about 85% to about 100% of its surface potential in from 0 to about 40 milliseconds upon being subjected to xerographic charging and exposure to radiant energy of from about 1 ergs/cm2 to about, 5 ergs/cm2. Also disclosed is a photoreceptor containing the same.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Applicant: XEROX CORPORATION
    Inventors: Gregory MCGUIRE, Jennifer A. COGGAN, Hany AZIZ, Johann JUNGINGER, Nan-Xing HU, Ah-Mee Hor
  • Patent number: 7449830
    Abstract: An organic light emitting device composed of: a cathode; a layer including an organic electroluminescent material and a charge transport material; a layer including an electron accepting material; an anode capping layer; an anode; and a substrate in the sequence before the cathode or after the anode.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: November 11, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Hany Aziz
  • Patent number: 7449831
    Abstract: An organic light emitting device composed of: a cathode; a layer including an organic electroluminescent material; a layer including an electron accepting material; an anode capping layer comprising an inorganic material; an anode; and a substrate in the sequence before the cathode or after the anode, wherein the anode capping layer is selected to provide the device with a luminance stability ratio that is greater than 1.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: November 11, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Hany Aziz, Zoran D. Popovic, Jennifer A. Coggan
  • Patent number: 7438981
    Abstract: An organic electroluminescent material and a device using the same wherein the electroluminescent material is a charge transport indenofluorene selected from one of Formula (I) and Formula (II) wherein R and R? are independently selected from the group consisting of a hydrogen atom, halogen atom, cyano, alky, alkoxyl, alicyclic alkyl, substituted or unsubstituted aryl or heteroaryl, and dialkylamino; m and n are numbers of 0 to 4; R1, R2, R5, and R6 are independently selected from the group consisting of hydrogen, an alkyl, a substituted or unsubsituted aryl, or an heteroaryl, an alkoxy, and vinyl; R3 and R4 are independently selected from the group consisting of a hydrogen atom, halogen atom, alkyl, alkoxy, and substituted or unsubstituted aryl or heteroaryl; and p is 1 or greater.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: October 21, 2008
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Jennifer A. Coggan, Nan-Xing Hu, Hany Aziz
  • Publication number: 20080233500
    Abstract: A photoreceptor device having at least one layer that is a self-assembled patterned binder layer, which may include at least one functional material.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 25, 2008
    Applicant: XEROX CORPORATION
    Inventors: Kathy L. DE JONG, Hany AZIZ
  • Publication number: 20080233297
    Abstract: Methods of forming a self-assembled patterned binder layer, which may include at least one functional material, that is particularly suitable for use in photoreceptor devices.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 25, 2008
    Applicant: XEROX CORPORATION
    Inventors: Kathy L. DE JONG, Hany AZIZ
  • Patent number: 7402346
    Abstract: An organic electroluminescent device comprising an anode, an electroluminescent region, and a cathode. The luminescent region comprises a light-emitting material of Formula I wherein R1 is independently selected from the group consisting of a hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an amino group, an alkyl amino group, and an aryl amino group; R2 is independently selected from the group consisting of hydrogen, a hetero atom, and an alkyl group; R3 is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group; and, R4 is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: July 22, 2008
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Jennifer A. Coggan, Hany Aziz, Timothy P. Bender, Nan-Xing Hu
  • Publication number: 20080107980
    Abstract: A coating composition having a polymer resin composition containing at lest an acid catalyst and a masking agent, wherein the masking agent is selected from the group consisting of compound A, compound B, and the acylated derivatives of compound A, where compound A is given by the structural formula (I): where X represents a substituent selected from the group consisting of —OR and —NR?R?, wherein R, R?, and R? each independently represent a hydrogen atom or a hydrocarbyl group; and compound B is given by the structural formula (II): where Y and Z independently represent —OH or —NH2.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 8, 2008
    Applicant: Xerox Corporation
    Inventors: Kathy L. De Jong, Hany Aziz, Nan-Xing Hu
  • Publication number: 20080102388
    Abstract: A photoreceptor with a substrate, a charge generating layer, a charge transport layer including N,N,N?N?-tetra(4-methylphenyl)-(1,1?-biphenyl)-4,4?-diamine, having a purity of from about 95 percent to about 100 percent, and a protective overcoating layer, optionally including a hole transport material other than N,N,N?N?-tetra(4-methylphenyl)-(1,1?-biphenyl)-4,4?-diamine, that will discharge form about 85% to about 100% of its surface potential in from 0 to about 40 milliseconds upon being subjected to xerographic charging and exposure to radiant energy of from about 1 erg/cm2 to about 5 ergs/cm2.
    Type: Application
    Filed: May 31, 2007
    Publication date: May 1, 2008
    Applicant: XEROX CORPORATION
    Inventors: Hany Aziz, Gregory McGuire, Jennifer A. Coggan, Johann Junginger, Kathy L. De Jong, Ah-Mee Hor, Nan-Xing HU
  • Patent number: 7352125
    Abstract: An organic electroluminescent device includes an anode, a cathode, and a light emitting zone including a hole transport region and an electron transport region. The hole transport region include a hole impeding material located non-adjacent the anode.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: April 1, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Hany Aziz, Zoran D. Popovic, Nan-Xing Hu