Patents Examined by Andrew K Bohaty
  • Organic semiconductors
    Patent number: 9755151
    Abstract: An optoelectronic device comprising a charge transfer layer including a first semiconductive polymer comprising one or more zwitterions.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: September 5, 2017
    Assignee: CAMBRIDGE ENTERPRISE LIMITED
    Inventors: Junfeng Fang, Feng Gao, Bodo Wallikewitz, Giuseppina Pace, Richard Henry Friend, Wilhelmus T. S. Huck
  • Organic compound and organic optoelectric device and display device
    Patent number: 9755157
    Abstract: An organic compound represented by a combination of a moiety represented by the following Chemical Formula 1, a moiety represented by the following Chemical Formula 2, and a moiety represented by the following Chemical Formula 3,
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: September 5, 2017
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Han-Ill Lee, Dong-Kyu Ryu, Eun-Sun Yu, Jin-Seok Hong, Dong-Min Kang, Ji-Hun Shin, Sang-Shin Lee, Yu-Na Jang, Soo-Young Jeong, Su-Jin Han
  • Nitrogenated heterocyclic derivative, electron-transporting material for organic electroluminescent elements, and organic electroluminescent element using same
    Patent number: 9748496
    Abstract: A specific nitrogen-containing heterocyclic compound having a urea structure, an electron transporting material containing the nitrogen-containing heterocyclic compound, and an organic electroluminescence device including a light emitting layer and an electron transporting layer between a cathode and an anode in which the electron transporting layer includes the electron transporting material or the nitrogen-containing heterocyclic derivative. An organic EL device exhibiting high emission efficiency even at low voltage and a material for organic EL devices are described.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: August 29, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Sayaka Mizutani, Takayasu Sado, Hiroki Ishida
  • Carrier generation material and organic light-emitting diode
    Patent number: 9741969
    Abstract: A carrier generation material is provided, which has a chemical structure of: wherein R1 is hydrogen or alkyl group; each of R2 is independently hydrogen, halogen, —CN, —CF3, —NO2, or alkyl group; each of R3 is independently hydrogen, halogen, —CN, —CF3, —NO2, or alkyl group; R4 is hydrogen, halogen, —CN, —CF3, —NO2, or alkyl group; R5 is hydrogen, halogen, —CN, —CF3, —NO2, or alkyl group; R6 is ?O, ?NH, or malononitrile group, and R7 is hydrogen, halogen, —CN, —CF3, —NO2, or alkyl group.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: August 22, 2017
    Assignee: National Tsing Hua University
    Inventors: Chien-Hong Cheng, Wei-Ting Hsieh, Chen-Hsun Hung, Min-Jie Huang, Cheng-Chang Lai, Chuang-Yi Liao
  • Materials for organic electroluminescent devices
    Patent number: 9741944
    Abstract: The present invention relates to coordination compounds which are used in an electron-transport layer in electronic devices, to ligands, and to the use thereof for the preparation of metal complexes, to a layer, and to an electronic device which comprise the compounds according to the invention, and to a process for the preparation of the compounds according to the invention.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: August 22, 2017
    Assignee: Merck Patent GmbH
    Inventors: Arne Buesing, Holger Heil, Teresa Mujica-Fernaud, Irina Martynova
  • Materials for organic electroluminescence devices
    Patent number: 9738826
    Abstract: The present invention relates to copolymers containing indenocarbazole derivatives having electron- and hole-transporting properties, in particular for use in the interlayer, emission layer and/or charge-transport layer of electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising these compounds.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: August 22, 2017
    Assignee: Merck Patent GmbH
    Inventors: Junyou Pan, Rémi Manouk Anémian, Susanne Heun, Thomas Eberle, Niels Schulte
  • Organic electroluminescent materials and devices
    Patent number: 9735373
    Abstract: Aluminum chelate complex compounds with two substituted 8-hydroxyquinoline ligand and one dibenzothiophene, dibenzofuran or dibenzoselenophene ligands or aza-analogs of these molecules, attached directly or through an aromatic spacer to the oxygen atom is provided to improve lifetime, operating voltage and efficiency of an OLED. Additional substitution of dibenzothiophene or dibenzofuran ring may also provide charge delocalization, HOMO modification and higher Tg.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: August 15, 2017
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Alexey Dyatkin, Chuanjun Xia, David Zenan Li
  • Compound and organic light-emitting device using same
    Patent number: 9728728
    Abstract: The present invention provides a novel compound that is capable of largely improving a life span, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device in which the compound is included in an organic compound layer.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: August 8, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Kil Hong, Yun Hwan Kim, Jungoh Huh, Seongmi Cho, Seong So Kim, Yongbum Cha
  • Organic electroluminescence device and organic light emitting medium
    Patent number: 9728727
    Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: August 8, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahide Matsuura, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9722185
    Abstract: A heterocyclic compound and an organic light-emitting device including the heterocyclic compound, the heterocyclic compound being represented by Formula 1 below:
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: August 1, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jung-Sub Lee
  • Compound for organic electric element, organic electric element comprising the same and electronic device thereof
    Patent number: 9716236
    Abstract: Provided are a compound of Formula 1 and an organic electric element including a first electrode, a second electrode, and an organic material layer between the first and the second electrodes, where the organic material layer contains the compound of Formula 1 and improves luminous efficiency, stability, and life span of the element.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: July 25, 2017
    Assignees: DUK SAN NEOLUX CO., LTD., SAMSUNG DISPLAY CO., LTD.
    Inventors: Junghwan Park, Sunhee Lee, Soungyun Mun, Daesung Kim, Hwasoon Jung, Wonsam Kim, Jihun Byun, Bumsung Lee, Mi Kyung Kim, Kwan Hee Lee, Dae Yup Shin
  • Delayed fluorescence compound, and organic light emitting diode and display device using the same
    Patent number: 9711735
    Abstract: Discussed is a delayed fluorescence compound of Formula 1: wherein n is 1 or 0, and A is selected from Formula 2: wherein D is selected from Formula 3: and each of “L1” and “L2” is independently selected from Formula 4: wherein R1 in the Formula 2 is selected from hydrogen or phenyl, and each of X, Y, and Z is independently selected from carbon and nitrogen, and wherein at least two selected from X, Y, and Z are nitrogen, and R2 in the Formula 4 is selected from one of hydrogen and C1 alkyl through C10 alkyl.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: July 18, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Hwan Yang, Kyung-Jin Yoon, Hyo-Jin Noh, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Supramolecular polymers derived from perylene-diimides
    Patent number: 9701784
    Abstract: This invention is directed to perylene-diimide aromatic dianion compounds, process of preparation and uses thereof. The perylene-diimide aromatic dianion compounds of this invention are stable in aqueous solution and can be used for photofunctional and electron transfer systems in aqueous phase. This invention is also directed to supramolecular polymers derived from perylene-diimide compounds and mixtures thereof, and to uses thereof.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: July 11, 2017
    Assignee: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
    Inventors: Boris Rybtchinski, Elijah Shirman, Alona Ustinov, Netanel Ben-Shitrit, Haim Weissman, Elisha M. Krieg, Galina Golubkov, Jonathan Baram
  • Organic light emitting device
    Patent number: 9705087
    Abstract: Provided is an organic light emitting device with enhanced durability during continuous driving. The organic light emitting device includes: an anode, a cathode, and an organic compound layer being placed between the anode and the cathode and including at least a hole transport layer and an emission layer, in which: the emission layer contains a blue light emitting material; the hole transport layer contains a plurality of kinds of organic compounds; and an organic compound having the smallest ionization potential among the organic compounds includes a compound having no absorption spectrum peak in a blue color wavelength region in a radical cation state.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: July 11, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Minako Nakasu, Masataka Yashima, Hajime Muta, Keiji Okinaka, Tomona Yamaguchi, Tomonari Horikiri, Maki Okajima, Naoki Yamada
  • Semiconducting polymer and organic electroluminescence device thereof
    Patent number: 9691984
    Abstract: A semiconducting polymer and electronic devices comprising such polymer, in which the polymer has one or more repeat units, a first of the repeat units having the structure wherein R12 to R17 independently comprise H or a polyether group having at least five ethoxy repeat units, and in which at least one of R12 to R17 has a polyether group.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: June 27, 2017
    Assignees: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, SUMITOMO CHEMICAL COMPANY LIMITED
    Inventor: Helen Middleton
  • Organic electroluminescent element, light-emitting material for organic electroluminescent element, and light-emitting device, display device, and illumination device using said element
    Patent number: 9691988
    Abstract: An organic electroluminescent element using a compound represented by the following general formula emits dark blue light and has a small change in the chromaticity during luminance modulation: wherein each of R1 to R8 represents a hydrogen atom or a substituent; A1 to A4 represent CR31 or N; L and X each independently represent any one of CR32R33, NR34, O, S, and SiR35R36; and each of R31 to R36 represents a hydrogen atom or a substituent.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: June 27, 2017
    Assignee: UDC Ireland Limited
    Inventors: Saki Takada, Yosuke Yamamoto, Toshihiro Ise, Tetsu Kitamura, Toru Watanabe, Wataru Sotoyama, Koji Takaku, Kimiatsu Nomura
  • Compound and organic electronic device comprising the compound
    Patent number: 9680107
    Abstract: Provided are a novel compound and an organic electronic device (OED) including the same. The novel compound has better hole injection and hole transport properties than a conventional material, and thus may enhance thermal stability and efficiency when used as a material for a hole injection or hole transport layer of the OED.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: June 13, 2017
    Assignee: LMS Co., Ltd.
    Inventors: Joon Ho Jung, Jeong Og Choi, Oh Kwan Kwon, Ah Reum Hwang
  • Compositions for electronic applications
    Patent number: 9680111
    Abstract: This invention relates to a composition including (a) a dopant, (b) a first host having at least one unit of Formula I, and (c) a second host compound. Formula I has the structure where Q is a fused ring linkage having the formula In Formula I: R1 is the same or different at each occurrence and is D, alkyl, aryl, silyl, alkoxy, aryloxy, cyano, vinyl, or allyl; R2 is the same or different at each occurrence and is H, D, alkyl, or aryl, or both R2 are an N-heterocycle; R3 is the same or different at each occurrence and is H, D, cyano, alkyl or aryl; and a is the same or different at each occurrence and is an integer from 0-4.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: June 13, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Jerald Feldman, Norman Herron, Michael Henry Howard, Jr., Nora Sabina Radu, Vsevolod Rostovtsev, Kerwin D Dobbs, Adam Fennimore, Weiying Gao, Weishi Wu, Ying Wang, Charles D McLaren
  • Heterocyclic compound and organic light emitting device using the same
    Patent number: 9673403
    Abstract: The present specification provides a heterocyclic compound, and an organic light emitting device including: a first electrode, a second electrode, and organic material layers formed of one or more layers including a light emitting layer disposed between the first electrode and the second electrode, in which one or more layers of the organic material layers include the heterocyclic compound or a compound in which a heat-curable or photo-curable functional group is introduced into the heterocyclic compound.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: June 6, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Tae Yoon Park, Minseung Chun, Dongheon Kim, Jiyeon Ahn, Hyoung Seok Kim
  • Optical device comprising a charge transport layer of insoluble organic material and method for the production thereof
    Patent number: 9660212
    Abstract: A method of forming an organic light emitting diode comprising the steps of: providing a substrate comprising a first electrode for injection of charge carriers of a first type; forming a charge transporting layer by depositing over the substrate a charge transporting material for transporting charge carriers of the first type, the charge transporting material being soluble in a solvent; treating the charge transporting layer to render it insoluble in the solvent; forming an electroluminescent layer by depositing onto the charge transporting layer a composition comprising the solvent, a phosphorescent material, and a host material; and depositing over the electroluminescent layer a second electrode for injection of charge carriers of a second type.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: May 23, 2017
    Assignee: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Nalinkumar Lallubhai Patel, Natasha M. Conway, Mark Leadbeater, Ilaria Grizzi