Patents by Inventor Jennifer A. Coggan

Jennifer A. Coggan 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: 7238456
    Abstract: Silicon-containing layers for electrophotographic photoreceptors which have high mechanical strength, improved electrophotographic characteristics and improved image deletion characteristics even under conditions of high temperature and high humidity are provided. Such silicon-containing layers include silicon-containing compounds, which may be cross-linked, and siloxane-containing antioxidants that can be selected from hindered phenol antioxidants, hindered amine antioxidants, thioether antioxidants and phosphite antioxidants. Electrophotographic photoreceptors and electrophotographic imaging apparatuses containing such silicon-containing layers are also provided.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: July 3, 2007
    Assignee: Xerox Corporation
    Inventors: Timothy P Bender, Nan-Xing Hu, John F Graham, Yvan Gagnon, Jennifer A Coggan
  • Publication number: 20070145886
    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: Application
    Filed: December 27, 2005
    Publication date: June 28, 2007
    Applicant: LG. PHILIPS LCD CO., LTD.
    Inventors: Hany Aziz, Zoran Popovic, Nan-Xing Hu, Jennifer Coggan, Anthony Paine
  • Publication number: 20070141392
    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: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Applicant: LG. PHILIPS LCD CO., LTD.
    Inventors: Jennifer Coggan, Hany Aziz
  • Publication number: 20070141391
    Abstract: A novel class of host materials for organic electroluminescent applications.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Jennifer Coggan, Hany Aziz
  • Publication number: 20070141390
    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: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Jennifer Coggan, Nan-Xing Hu, Hany Aziz, George Vamvounis
  • Publication number: 20070141389
    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: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Jennifer Coggan, Nan-Xing Hu, Hany Aziz
  • Patent number: 7227034
    Abstract: Forming a 4-aminobiphenyl derivative arylamine compound, includes (i) providing a first disubstituted 4-aminobiphenyl compound; (ii) optionally formylating the first disubstituted 4-aminobiphenyl compound to form a bisformyl substituted compound where the first disubstituted 4-aminobiphenyl compound is not a bisformyl substituted compound; (iii) acidifying the bisformyl substituted compound to convert formyl functional groups into acid functional groups to form an acidified compound; and (iv) hydrogenating the acidified compound to saturate at least one unsaturated double bonds in the acidified compound.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: June 5, 2007
    Assignee: Xerox Corporation
    Inventors: Timothy P. Bender, Jennifer A. Coggan
  • Publication number: 20070111120
    Abstract: A process for the preparation of a tertiary arylamine compound, comprising reacting an arylhalide, such as an arylbromide, and an arylamine in an alkylene glycol compound in the presence of a catalyst.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 17, 2007
    Applicant: Xerox Corporation
    Inventors: Jennifer Coggan, Timothy Bender
  • Patent number: 7214644
    Abstract: A method for producing a copper/palladium colloid catalyst useful for Suzuki couplings.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: May 8, 2007
    Assignee: Xerox Corporation
    Inventors: Jennifer A. Coggan, Nan-Xing Hu, H. Bruce Goodbrand, Timothy P. Bender
  • Publication number: 20070100164
    Abstract: A process for the preparation of the tertiary arylamine compound, comprising reacting and arylhalide, such as am arylbromide, and an arylamine in an ionic liquid in the presence of a catalyst.
    Type: Application
    Filed: November 1, 2005
    Publication date: May 3, 2007
    Applicant: XEROX CORPORATION
    Inventors: Jennifer Coggan, Timothy Bender
  • Patent number: 7196214
    Abstract: 4-aminobiphenyl derivative arylamine compounds are formed by providing an iodinated organic compound; substituting the iodinated organic compound at carboxylic acid groups thereof to provide ester protecting groups; conducting an Ullman condensation reaction to convert the product of step (ii) into an arylamine compound; and conducting a Suzuki coupling reaction to add an additional phenyl group to the arylamine compound in the 4-position relative to the nitrogen.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: March 27, 2007
    Assignee: Xerox Corporation
    Inventors: H. Bruce Goodbrand, Timothy P. Bender, Jennifer A. Coggan, Nan-Xing Hu
  • Publication number: 20070020481
    Abstract: A process for preparing a substituted or unsubstituted 9,10-diarylanthracene including reacting an organometallic substituted or unsubstituted aryl compound with a substituted or unsubstituted anthraquinone to yield a substituted or unsubstituted diol; and reacting the substituted or unsubstituted diol with a reducing agent to yield the substituted or unsubstituted 9,10-diarylanthracene is disclosed. An electroluminescent device comprising a light-emitting layer comprising the substituted or unsubstituted 9,10-diarylanthracene is also disclosed.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 25, 2007
    Inventor: Jennifer Coggan
  • Publication number: 20070020480
    Abstract: A process for preparing a substituted or unsubstituted 9,10-diaryl anthracene including reacting a substituted or unsubstituted anthracene with a halogenating agent to yield a halogenated anthracene, and reacting the halogenated anthracene with an aryl boronic acid or a boronic ester to yield the substituted or unsubstituted 9,1 0-diaryl anthracene is disclosed. An electroluminescent device comprising a light-emitting layer comprising the substituted or unsubstituted 9,10-diaryl anthracene is also disclosed.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 25, 2007
    Inventor: Jennifer Coggan
  • Publication number: 20060263628
    Abstract: A display device comprises an anode, a cathode, and a luminescent region disposed between the anode and the cathode, wherein the anode comprises a metal-organic mixed layer operatively combined with an electron-accepting material. An anode may comprise a mixture of a metal-organic mixed layer and an electron-accepting material within a single layer of the anode. Alternatively, the anode may have a multilayer configuration comprising a metal-organic mixed layer and a buffer layer adjacent the metal-organic mixed layer, wherein the buffer layer comprises an electron-accepting material and optionally a hole transport material.
    Type: Application
    Filed: May 20, 2005
    Publication date: November 23, 2006
    Inventors: Hany Aziz, Nemanja Stefanovic, Jennifer Coggan, Anthony Paine, Zoran Popovic
  • Publication number: 20060263629
    Abstract: A stacked OLED includes a first electrode, a second electrode, a plurality of luminescent regions disposed between the first and second electrodes, and an intermediate electrode disposed between successive luminescent regions. At least one intermediate electrode comprise a metal-organic mixed layer disposed between a first charge injecting layer and a second charge injecting layer.
    Type: Application
    Filed: May 20, 2005
    Publication date: November 23, 2006
    Inventors: Hany Aziz, Nemania Stefanovic, Jennifer Coggan, Zoran Popovic
  • Publication number: 20060261727
    Abstract: A display device comprising a thin metal-organic mixed layer (MOML) comprising a metal (containing material) and an organic material, and having a thickness of less than 175 nm. A thin metal-organic mixed layer may be of a single or multi-layer configuration. The percent reflectance of a device may be controlled by varying the thickness of the MOML(s) and the metal component and concentration thereof in the MOML(s).
    Type: Application
    Filed: May 20, 2005
    Publication date: November 23, 2006
    Inventors: Hany Aziz, Zoran Popovic, Nemanja Stefanovic, Jennifer Coggan
  • Publication number: 20060261731
    Abstract: A stacked OLED device comprises a plurality of individual OLEDs in a vertical stacked arrangement separated by intermediate electrodes, wherein at least one of the individual OLEDs includes a light emitting region or zone comprising a mixed region; the mixed region comprising a mixture of a hole transport material, an electron transport material, and optionally a dopant.
    Type: Application
    Filed: May 20, 2005
    Publication date: November 23, 2006
    Inventors: Hany Aziz, Jennifer Coggan
  • Publication number: 20060251920
    Abstract: The present invention relates to organic light emitting devices (OLEDs) containing an electron transport layer comprising a triazine. The triazine can be doped with at least one of organic and inorganic materials. A display device comprising the OLEDs is also disclosed.
    Type: Application
    Filed: May 4, 2005
    Publication date: November 9, 2006
    Inventors: Hany Aziz, Zoran Popovic, Jennifer Coggan, Nan-Xing Hu
  • Publication number: 20060251919
    Abstract: The present invention relates to organic light emitting devices (OLEDs) comprising an electroluminescent material layer comprising a mixture of at least two materials having different electron and hole transport capacities, and an electron transport layer comprising a triazine. Display devices comprising the OLEDs are also disclosed.
    Type: Application
    Filed: May 4, 2005
    Publication date: November 9, 2006
    Inventors: Hany Aziz, Zoran Popovic, Jennifer Coggan, Nan-Xing Hu
  • Publication number: 20060121311
    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: Application
    Filed: December 7, 2004
    Publication date: June 8, 2006
    Inventors: Jennifer Coggan, Hany Aziz, Timothy Bender, Nan-Xing Hu