Patents Represented by Attorney Arthur E. Kluegel

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  • Coupler and image dye light-stabilizing systems
    Patent number: 7090969
    Abstract: A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I1: wherein L is a linking moiety; X is a heteroatom group selected from O, S, or NR? where R? is H or a substituent; w is 0 or 1; R is hydrogen or a substituent group; n is an integer from 0 to 5; and ST represents a stabilizer selected from the group consisting of: A. a thiomorpholine dioxide; B. a dialkoxy aromatic group linked through a phenolic oxygen; C. a dialkoxy aromatic group linked through the aromatic ring; D. a sulfonamido group; E. a hydroxyphenyl benzotriazole group; and F. a phenolic group.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: August 15, 2006
    Assignee: Eastman Kodak Company
    Inventors: Albert J. Mura, Shari L. Eiff, Gary M. Russo
  • Organic element for electroluminescent devices
    Patent number: 7087320
    Abstract: Disclosed is an OLED device comprising a light-emitting layer (LEL) containing a host and an emitting dopant located between a cathode and an anode wherein the dopant is a naphthacene derivative represented by formula (I): wherein: a) said naphthacene derivative contains at least one fluorine or fluorine containing group; and b) when exactly two fluorine containing groups are present said groups are not located at the 5- and 12-positions or at the 6- and 11-positions.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: August 8, 2006
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Tukaram K. Hatwar, Manju Rajeswaran, Natasha Andrievsky
  • Compensator having particular sequence of films and crosslinked barrier layer
    Patent number: 7084945
    Abstract: Disclosed is an optical compensator for a liquid crystal display comprising a transparent polymeric support, an orientation layer, and an optically anisotropic layer, in order, and located between the support and the orientation layer, a barrier layer comprising a crosslinked polymer impermeable to the components of the support. Embodiments exhibit improved optical properties.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: August 1, 2006
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Charles L. Bauer, Bradley M. Houghtaling, Jeffrey A. Trest
  • Organic electroluminescent devices
    Patent number: 7084425
    Abstract: Disclosed is an electroluminescent device comprising a cathode and an anode; and, located therebetween, a light-emitting layer (LEL) comprising a phosphorescent green-light-emitting material and a host material for the light-emitting material, and in a layer adjacent to the LEL on the anode side, an exciton-blocking layer containing a compound having a hole mobility of at least 1×10?3 cm2V?1s?1 and a triplet energy exceeding that of the green-light-emitting material of the LEL. Such a device provides useful light emission.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: August 1, 2006
    Assignee: Eastman Kodak Company
    Inventors: Marina E. Kondakova, Ralph H. Young
  • Organic element for electroluminescent devices
    Patent number: 7083865
    Abstract: Disclosed is an OLED device comprising a light-emitting layer (LEL) containing a host and a dopant located between a cathode and an anode wherein the emitter is an orange-red light emitting rubrene derivative represented by formula (I): wherein: a) there are identical aromatic groups at the 2- and 8-positions; b) the phenyl rings in the 5- and 11-positions contain only para-substituents identical to the aromatic groups in paragraph a); and c) the phenyl rings in the 6- and 12-positions are substituted or not.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: August 1, 2006
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Tukaram K. Hatwar, Manju Rajeswaran, David J. Giesen, Natasha Andrievsky
  • Multilayer optical compensator, liquid crystal display, and process
    Patent number: 7083835
    Abstract: A multilayer compensator comprising one or more polymeric A layers and one or more polymeric B layers, wherein said A layers comprise a polymer having an out-of-plane birefringence not more negative than ?0.01, said B layers comprise an amorphous polymer having an out-of-plane birefringence more negative than ?0.01, and the overall in-plane retardation (Rin) of said multilayer compensator is greater than 20 nm and the out-of-plane retardation (Rth) of said multilayer compensator is more negative than ?20 nm.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: August 1, 2006
    Assignee: Eastman Kodak Company
    Inventors: James F. Elman, Dennis J. Massa, Charles C. Anderson, Tomohiro Ishikawa
  • Organic element for electroluminescent devices
    Patent number: 7074503
    Abstract: Disclosed is an electroluminescent device comprising a light emitting layer comprising a boron complex wherein the boron is bonded to a nitrogen atom of a first 5-membered heteroaromatic ring group and to a nitrogen atom of a second 5-membered heteroaromatic ring group, provided that the 5-membered rings are further connected by a methene or an imine bridge to form a six-membered ring, and provided further that at least one of the 5-membered rings contains at least one additional heteroatom that is divalent or trivalent.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: July 11, 2006
    Assignee: Eastman Kodak Company
    Inventors: Margaret J. Helber, J. Ramon Vargas
  • Organic element for electroluminescent devices
    Patent number: 7074502
    Abstract: A phosphorescent electroluminescent device comprising a light-emitting layer containing a host material and a phosphorescent light-emitting material wherein the host material comprises a boron compound containing at least one boron-nitrogen bond. Such devices provide useful light emissions.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: July 11, 2006
    Assignee: Eastman Kodak Company
    Inventors: J. Ramon Vargas, Joseph C. Deaton
  • Organic element for electroluminescent devices
    Patent number: 7070868
    Abstract: Disclosed is an electroluminescent device comprising a light emitting layer comprising a boron complex wherein the boron is bonded to a nitrogen atom of a 6-membered heteroaromatic ring group and to a nitrogen atom of a 5-membered heteroaromatic ring group, provided that the 5- and 6-membered heteroaromatic ring groups are further connected by an imine group, and provided that the 5-membered heteroaromatic ring group contains at least one additional heteroatom that is divalent or trivalent, and a process or device employing the device.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: July 4, 2006
    Assignee: Eastman Kodak Company
    Inventors: Margaret J. Helber, J. Ramon Vargas, Scott R. Conley
  • OLED device with asymmetric host
    Patent number: 7056601
    Abstract: Disclosed is an OLED device comprising an anode and a cathode and located there-between a light emitting layer containing a light emitting dopant and a host comprising a monoanthracene derivative of formula (I): wherein R1–R8 are H; R9 is not the same as R10; R9 is a biphenyl group containing no fused rings with aliphatic carbon ring members; R10 is an ortho-substituted- or meta monosubstituted phenyl group; provided that R9 and R10 are free of amines and sulfur compounds.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: June 6, 2006
    Assignee: Eastman Kodak Company
    Inventors: Lelia Cosimbescu, William B. Vreeland, Scott R. Conley, Jeri L. Mount
  • Organic element for electroluminescent devices
    Patent number: 7052785
    Abstract: Disclosed is an OLED device comprising a light-emitting layer (LEL) containing a host and a dopant located between a cathode and an anode wherein the emitter is an orange-red light emitting rubrene derivative represented by formula (II): wherein: a) there are identical branched alkyl or non-aromatic carbocyclic groups at the 2- and 8-positions; b) the phenyl rings in the 5- and 11-positions contain only para-substituents identical to the branched alkyl or non-aromatic carbocyclic groups in paragraph a); and c) the phenyl rings in the 6- and 12-positions are substituted.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: May 30, 2006
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Tukaram K. Hatwar, Manju Rajeswaran, David J. Giesen, Natasha Andrievsky
  • Organic element for electroluminescent devices
    Patent number: 7049012
    Abstract: Disclosed is an OLED device comprising a light-emitting layer (LEL) containing a host and a dopant located between a cathode and an anode wherein the emitter is an orange-red light emitting rubrene derivative represented by formula (I): wherein: a) there are identical oxy, aza or thio groups at the 2- and 8-positions; b) the phenyl rings in the 5- and 11-positions contain only para-substituents identical to the oxy, aza or thio groups in paragraph a); c) the phenyl rings in the 6- and 12-positions are substituted; and provided that when a single substituent on both phenyl rings in paragraph c) are present, said substituent is not a methoxy group located at the para-position.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: May 23, 2006
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Tukaram K. Hatwar, Manju Rajeswaran, David J. Giesen, Natasha Andrievsky
  • Optical element with nanoparticles
    Patent number: 7046439
    Abstract: Disclosed is an optical element comprising a substrate with surface features on a surface thereof having an Ra of from 3 to 200 micrometers containing a dispersion of minute particles having a particle size dimension less than 100 nanometers.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: May 16, 2006
    Assignee: Eastman Kodak Company
    Inventors: Cheryl J. Kaminsky, Robert P. Bourdelais, Glen C. Irvin
  • 3-step synthesis of pyrazolotriazole couplers and coupler intermediates
    Patent number: 7041833
    Abstract: A process and intermediate useful for forming a 1H-Pyrazolo[1,5-b][1,2,4]triazole compounds comprise the step of reacting a 1,5-diaminopyrazole bearing a substituent, bonded to one and only one of the amine nitrogens by an acyl or thioacyl group, with a dehydrating agent in the presence of an aprotic solvent.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: May 9, 2006
    Assignee: Eastman Kodak Company
    Inventor: Catherine Mineur
  • Organic element for electroluminescent devices
    Patent number: 7033681
    Abstract: An electroluminescent device comprises a cathode, an anode, and therebetween a layer containing a host material and a second material comprising a bis(aryloxy)azine borohalide complex. The invention also includes a display device and an area lighting device incorporating the electroluminescent device and a process for emitting light.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: April 25, 2006
    Assignee: Eastman Kodak Company
    Inventor: Scott R. Conley
  • Organic element for electroluminescent devices
    Patent number: 7029766
    Abstract: Disclosed is an electroluminescent device comprising a light-emitting layer containing a light emitting material that contains an organometallic complex comprising a metal selected from the group consisting of Pt, Pd and Ir, and a tridentate (N^C^N) ligand, wherein the tridentate (N^C^N) ligand represents a ligand that coordinates to the metal through a nitrogen donor bond, a carbon-metal bond, and a nitrogen donor bond, in that order, wherein at least one of the nitrogen donors is part of an aromatic ring or an imine group. The invention also includes a display or room lighting device employing the device of the invention and a process of emitting light from the device of the invention. The device of the invention provides good luminance efficiency.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: April 18, 2006
    Assignee: Eastman Kodak Company
    Inventors: Shouquan Huo, Joseph C. Deaton, Allan F. Sowinski
  • Synthesis for quinacridone compounds
    Patent number: 7026481
    Abstract: Disclosed is a process for forming a N,N?-diarylquinacridone compound comprising the step of reacting a 1,4-dialkylcarboxylate-2,5-bis(N-arylamino) benzene with an iodoaryl compound to form the corresponding 2,5-bis(N-diarylamino) compound. The process is versatile and provides high yields and purity for the synthesis of N,N?-diarylquinacridone compounds.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: April 11, 2006
    Assignee: Eastman Kodak Company
    Inventors: Lelia Cosimbescu, Jianmin Shi
  • Synthesis of organometallic cyclometallated group viiib metal complexes
    Patent number: 7015344
    Abstract: A process for forming an organometallic cyclometallated Group viiib metal complex comprises reacting a Group viiib metal compound with a heterocyclic compound capable of forming an organometallic cyclometallated complex in the presence of a solvent comprising an aromatic oxygen containing compound.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: March 21, 2006
    Assignee: Eastman Kodak Company
    Inventor: Joseph C. Deaton
  • Optical element containing an optical spacer
    Patent number: 7009771
    Abstract: Disclosed is an optical element containing a rough surface having a roughness average equal to at least 5 micrometers wherein the rough surface contains at least two roughness populations in which the roughness average of the at least two populations varies by at least 8 micrometers. The invention provides an optical element containing an integral optical spacer while simultaneously providing scratch and impact resistance.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: March 7, 2006
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Cheryl J. Kaminsky
  • Synthesis of organometallic cyclometallated transition metal complexes
    Patent number: 7005522
    Abstract: A process for forming a tris-cyclometallated iridium or rhodium complex comprises reacting in the presence of a solvent: a) a bis-cyclometallated complex comprising an Ir (III) or Rh (III) metal, two bidentate ligands, two monodentate ligands and a counterion, and b) a heterocyclic compound capable of forming an organometallic cyclometallated complex.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: February 28, 2006
    Assignee: Eastman Kodak Company
    Inventor: Joseph C. Deaton