Patents Examined by Gregory Clark
  • Patent number: 9761813
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emission, and other properties, and to an organic electroluminescent device the luminous efficiency, driving voltage, service life, and other characteristics of which are improved due to containing the compound in one or more organic material layers.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: September 12, 2017
    Assignee: DOOSAN CORPORATION
    Inventors: Hoe Moon Kim, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Yong Shin
  • Patent number: 9755152
    Abstract: There is provided an organic compound having excellent characteristics, including excellent electron-injecting/transporting performance, hole blocking ability, and high stability in the thin-film state, for use as material of an organic electroluminescent device having high efficiency and high durability. There is also provided a high-efficient and high-durable organic electroluminescent device using the compound. The compound is represented by general formula (1) having a substituted anthracene ring structure and a pyridoindole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: September 5, 2017
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Naoaki Kabasawa, Daizou Kanda, Shigeru Kusano
  • Patent number: 9755159
    Abstract: A novel compound based on aza- and diazodibenzofurans; aza- and diaza dibenzothiophenes, such as benzothieno- and benzofuropyrimidines as well as benzothieno- and benzofuropyrazines useful for electron-transporting host material in green, red, yellow, and white phosphorescent emitting devices is disclosed.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: September 5, 2017
    Assignee: Universal Display Corporation
    Inventors: Alexey Borisovich Dyatkin, Chuanjun Xia, David Zenan Li, Lichang Zeng, Vadim Adamovich
  • Patent number: 9755156
    Abstract: A fused amine compound including a furan ring or a thiophene ring and an organic electroluminescence device employing the amine compound. The organic electroluminescence device includes a cathode, an anode, and one or more organic thin film layers which are disposed between the cathode and the anode. The organic thin film layers include a light emitting layer and at least one layer of the organic thin film layers includes at least one amine compound.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: September 5, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yoichi Ikeda, Hirokatsu Ito, Masahiro Kawamura, Hiroyuki Saito, Takeshi Ikeda
  • Patent number: 9748492
    Abstract: Provided are an amine compound having a benzofluorene structure and further having a dibenzofuran structure and/or a dibenzothiophene structure, and an organic electroluminescent device containing a cathode, an anode and an organic thin film layer intervening between the cathode and anode, the organic thin film layer comprising one layer or plural layers comprising at least an emitting layer, at least one layer of the organic thin film layer comprising the aforementioned amine compound solely or as a component of a mixture.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: August 29, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu Ito, Takeshi Ikeda
  • Patent number: 9741943
    Abstract: A fused fluoranthene compound which includes an indeno[3,2-b]fluoranthene skeleton having a hetero atom is a novel compound, which is useful as a material for organic electroluminescence devices for use in an organic electroluminescence device and an electronic equipment.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: August 22, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Kazuki Nishimura
  • Patent number: 9741941
    Abstract: A compound that has the structure according to Formula 1: as well as, devices and formulations containing the compound of Formula 1 are disclosed. In the compound of Formula 1: X1, X2, X3, X4, X5, and X6 are independently selected from the group consisting of C—R and N; each R is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; and at least one R comprises a donor group with at least two electron donating nitrogens.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 22, 2017
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Tzu-Chin Yeh, Ken-Tsung Wong, Raymond Kwong, Siu Tung Lam, Chi Hang Lee
  • Patent number: 9735368
    Abstract: An organic electroluminescent element that includes a light-emitting layer composed of a light-emitting composition containing at least one type of host material and at least one type of light-emitting material is provided. The host material is a fluorescent anthracene derivative, which fluoresces blue light under DC current with a current density of 25 mA/cm2. If ? (nm) is taken to be the shortest wavelength of all the wavelengths at which the intensity of PL emission of a film composed only of the aforementioned host material is one-half the maximum emission intensity, then the intensity of PL emission at the aforementioned wavelength ? of a film composed of the aforementioned light-emitting composition is no more than 1/10 the maximum emission intensity of PL emission of the film composed of the aforementioned light-emitting composition, and the PL emission of the film composed of the aforementioned light-emitting composition satisfies CIE y?0.08.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: August 15, 2017
    Assignee: UDC Ireland Limited
    Inventors: Kuniyuki Kaminaga, Wataru Sotoyama, Masaru Kinoshita, Daisuke Inoue
  • Patent number: 9735371
    Abstract: The present invention relates to a compound of the formula (I), to the use of this compound in an electronic device, and to an electronic device comprising one or more compounds of the formula (I). The invention furthermore relates to the preparation of the compound of the formula (I) and to a formulation comprising one or more compounds of the formula (I).
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 15, 2017
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Arne Buesing, Frank Voges, Christof Pflumm, Amir Hossain Parham, Thomas Eberle, Teresa Mujica-Fernaud
  • Patent number: 9732069
    Abstract: A carbazole compound represented by Formula 1 wherein, in Formula 1, X1, L1 to L5, R1 to R4, R11, R12, a1 to a5, b1 to b4, b11, b12, and c1 are described in the specification.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: August 15, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Kumhee Lee, Jiyoun Lee, Yoonhyun Kwak, Youngjae Park, Seokhwan Hong
  • Patent number: 9732036
    Abstract: [Problem]An organic compound of excellent characteristics is provided that exhibits excellent hole-injecting/transporting performance with electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency, the organic compound being provided as material for an organic electroluminescent device having high efficiency and high durability. The invention also provides a high-efficient, high-durable organic electroluminescent device using the compound. [Means for Resolution] The compound is of the following general formula having a carbazole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: August 15, 2017
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Makoto Nagaoka, Kazunori Togashi, Shigeru Kusano
  • Patent number: 9728729
    Abstract: An organic light-emitting device and a flat panel display, the device including an anode; a cathode; and an organic layer therebetween, the organic layer including an EML, the EML including a first host and a second host that are different from one another, a hole transport region between the anode and the EML, the hole transport region including at least one of a hole injection layer (HIL), a hole transport layer (HTL), a buffer layer, or an electron blocking layer (EBL), an electron transport region between the EML and the cathode, the electron transport region including at least one of a hole blocking layer (HBL), an electron transport layer (ETL), or an electron injection layer (EIL), and an intermediate layer between the EML and the electron transport region; wherein the intermediate layer includes a compound having an electron affinity of more than 0 eV and less than 2.5 eV.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: August 8, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seul-Ong Kim, Youn-Sun Kim, Dong-Woo Shin, Jung-Sub Lee, Naoyuki Ito
  • Patent number: 9722189
    Abstract: Provided are an organic EL device practically satisfactory in terms of its light-emitting characteristics, driving voltage, and durability, and a compound for an organic EL device to be used in the device. The organic EL device has a structure in which an anode, a plurality of organic layers including a light-emitting layer, and a cathode are laminated on a substrate, and the organic EL device contains, in at least one organic layer selected from the light-emitting layer, a hole-transporting layer, an electron-transporting layer, a hole-blocking layer, and an electron-blocking layer, an adamantane compound having at least one triarylborane structure in a molecule thereof as the compound for an organic EL device.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: August 1, 2017
    Assignee: NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.
    Inventor: Masashi Tada
  • Patent number: 9722183
    Abstract: Display comprising at least one organic light emitting diode, wherein the at least one organic light emitting diode comprises an anode, a cathode, a light emitting layer between the anode and the cathode, and at least one layer comprising a compound according to formula (I) between the cathode and the light emitting layer: wherein A1 and A2 are independently selected from halogen, CN, substituted or unsubstituted C1-C20-alkyl or heteroalkyl, C6-C20-aryl or C5-C20-heteroaryl, C1-C20-alkoxy or C6-C20-aryloxy, A3 is selected from substituted or unsubstituted C6-C40-aryl or C5-C40-heteroaryl, m=0, 1 or 2, n=0, 1 or 2.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: August 1, 2017
    Assignee: Novaled GmbH
    Inventors: Omrane Fadhel, Ramona Pretsch, Carsten Rothe, Rudolf Lessmann, Francois Cardinali
  • Patent number: 9716229
    Abstract: The invention provides a photopolymerisable or photocrosslinkable reactive mesogen for forming a charge transporting or light emitting polymer network, the mesogen having an asymmetric structure (II): B1-S1-A1-M-(A-S-B)n (II) wherein: A and A1 are chromophores; S and S1 are spacers; B and B1 are endgroups which are susceptible to photopolymerisation or photocrosslinking; M is a non-chromophoric aliphatic, alicyclic or aromatic moiety; and n is an integer from 1 to 3; wherein, when the value of n is greater than 1, each of the groups A, S and B may be the same or different. Preferably, M is of the formula Y?Zm, wherein Y is an aliphatic, alicyclic, aromatic or heterocyclic moiety, Z is an aliphatic linking group and m is an integer from 2 to 4, and wherein each of the Z groups may be the same or different.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: July 25, 2017
    Assignee: UNIVERSITY OF HULL
    Inventors: Mary O'Neill, Stephen Malcolm Kelly, Stuart Paul Kitney
  • Patent number: 9711732
    Abstract: An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer having one or more layers and provided between the anode and the cathode, in which the organic layer includes an emitting layer. The emitting layer includes a first host material, a second host material and a phosphorescent dopant material. The first host material is a compound represented by a formula (1A). The second host material is a compound represented by a formula (2A).
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: July 18, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuki Nishimura, Toshinari Ogiwara, Kumiko Hibino, Tetsuya Inoue, Mitsunori Ito
  • Patent number: 9708262
    Abstract: The present invention relates to compounds of the formula (I) and to the use thereof in organic electronic devices, and to organic electronic devices which comprise compounds of the formula (I), preferably as hole-transport materials and/or as matrix materials, in particular in combination with a further matrix material.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: July 18, 2017
    Assignee: Merck Patent GmbH
    Inventors: Amir H. Parham, Christof Pflumm, Constanze Brocke
  • Patent number: 9705088
    Abstract: A triazine-based compound is represented by Formula 1 and an organic light-emitting device includes the triazine-based compound.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: July 11, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Ha Park, Young-Kook Kim, Eun-Young Lee, Eun-Jae Jeong, Seok-Hwan Hwang
  • Patent number: 9705092
    Abstract: An improved OLED includes an emitter layer disposed between a cathode and an anode where the emitter layer includes a host material and a phosphorescent emitter material. A first hole transport layer is disposed between the emitter layer and the anode and a second hole transport layer is disposed between the first hole transport layer and the anode. The first hole transport layer includes a first hole transport material that is a carbazole type compound and the second hole transport layer includes a second hole transport material that is different from the first hole transport material. The phosphorescent emitter material includes a phosphorescent organometallic compound that is a heteroleptic compound represented by the formula L2MX, LL?MX, LL?L?M, or LMXX?, wherein L, L?, L?, X, and X? are inequivalent, bidentate ligands and M is a metal that forms octahedral complexes, wherein L, L?, and L? are monoanionic inequivalent bidentate ligands coordinated to M through an sp2 hybridized carbon and a heteroatom.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 11, 2017
    Assignees: Universal Display Corporation, Hodogaya Chemical Co., Ltd.
    Inventors: Hitoshi Yamamoto, Michael Stewart Weaver, Norimasa Yokoyama, Makoto Nagaoka, Naoaki Kabasawa
  • Patent number: 9705091
    Abstract: An aromatic heterocyclic derivative represented by the following formula (1)-1 or (1)-2: wherein in the formula (1)-1 or (1)-2, A is a substituted or unsubstituted nitrogen-containing heterocyclic group including 2 to 30 ring carbon atoms; B is a substituted or unsubstituted aromatic hydrocarbon group including 6 to 30 ring carbon atoms or a substituted or unsubstituted aromatic heterocyclic group including 2 to 30 ring carbon atoms; n is an integer of 2 or more; and Czs are independently an aromatic heterocyclic group including a predetermined structure.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 11, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kiyoshi Ikeda, Mitsunori Ito