Patents Examined by Dawn L. Garrett
  • Organic light emitting diode device
    Patent number: 9005774
    Abstract: In one aspect, an organic light emitting diode device that includes a first electrode, a second electrode facing the first electrode, an emission layer interposed between the first electrode and the second electrode and an auxiliary layer interposed between either one of the first electrode and the second electrode and the emission layer, wherein the auxiliary layer includes a substituted or unsubstituted pyrene-based compound having at least one appended phenyl group is provided.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mie-Hwa Park, Tae-Shick Kim
  • Materials for organic electroluminescent devices
    Patent number: 8999521
    Abstract: The present invention relates to anthracene derivatives, to the use thereof in organic electroluminescent devices, and to organic electroluminescent devices comprising these compounds.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: April 7, 2015
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Holger Heil, Amir Parham, Horst Vestweber
  • Condensed-cyclic compound, organic light-emitting device comprising the same, and flat panel display apparatus including the device
    Patent number: 8999525
    Abstract: A condensed-cyclic compound is represented by Formula 1 below. An organic light-emitting device includes the condensed-cyclic compound. A flat panel display apparatus includes the organic light-emitting device. The organic light-emitting device includes an organic layer including the compound of Formula 1 and has low driving voltage, high emission efficiency, and a long lifetime.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Yong Lee, Seung-Gak Yang, Hee-Yeon Kim, Jeoung-In Yi
  • Organic compound and organic light-emitting device having the same
    Patent number: 8968890
    Abstract: Provided are a novel organic compound suitable for emitting green light and an organic light-emitting device including the compound. The organic compound is that shown in claim 1. The organic compound shown in claim 1 has substituents that are each independently selected from the group consisting of hydrogen atoms, halogen atoms, optionally substituted alkyl groups, optionally substituted alkoxy groups, substituted amino groups, optionally substituted aryl groups, and optionally substituted heterocyclic groups.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Naoki Yamada, Kengo Kishino, Masanori Muratsubaki, Akihito Saitoh
  • Organic compound and organic light-emitting device
    Patent number: 8968889
    Abstract: A novel organic compound suitable for emitting green light and an organic light-emitting device including the organic compound are provided. The organic compound is represented by general formula (1). In general formula (1), R1 to R18 are each independently selected from a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted amino group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Kengo Kishino, Naoki Yamada, Akihito Saitoh
  • Diacenaphtho[1,2-b:1?,2?-k]chrysene derivative
    Patent number: 8951648
    Abstract: A novel diacenaphtho[1,2-b:1?,2?-k]chrysene derivative is provided.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Masashi Hashimoto, Naoki Yamada, Akihito Saitoh
  • Organic compound and organic light-emitting device
    Patent number: 8932736
    Abstract: A novel organic compound suitable for blue light emission and an organic light-emitting device containing the novel organic compound are provided. An organic compound represented by the following general formula (1) wherein R1 to R18 independently denote a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: January 13, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kengo Kishino, Yosuke Nishide, Jun Kamatani
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 8927120
    Abstract: A heterocyclic compound represented by Formula 1 or Formula 2 below, an organic light-emitting device including the heterocyclic compound, and a flat display device including the organic light-emitting device: wherein Ar1 to Ar16, and R1 to R4 are defined as in the specification.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 6, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeoung-In Yi, Seung-Gak Yang, Hee-Yeon Kim, Jae-Yong Lee
  • Stilbene derivative, light-emitting element, light-emitting device, and electronic device
    Patent number: 8911882
    Abstract: The present invention provides a novel organic compound having excellent heat resistance. By using the novel organic compound, a light-emitting element and a light-emitting device which have excellent heat resistance can be provided. A stilbene derivative expressed by the general formula (1) is provided. Since the stilbene derivative expressed by the general formula (1) has high glass transition point, when it is used for a light-emitting element, the light-emitting element, and a light-emitting device using the light-emitting element which have excellent heat resistance can be obtained. Further, since the stilbene derivative expressed by the general formula (1) has good light emission efficiency; therefore, when it is used for a light emitting element, a light emitting element and a light emitting device which consumes less power can be obtained.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: December 16, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Masakazu Egawa
  • Dendrimer and organic light-emitting device using the same
    Patent number: 8900725
    Abstract: A dendrimer and an organic light-emitting device including an organic layer having the dendrimer.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: December 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Hyun Kwak, Jeoung-In Yi, Seung-Gak Yang, Hee-Yeon Kim, Jae-Yong Lee
  • Condensed polycyclic compound, organic light-emitting device having the same, display device, image information processing device, lighting device, image formation device, and exposure light source
    Patent number: 8900727
    Abstract: A condensed polycyclic compound represented by the following general formula [1], wherein, in General Formula [1], R1, R6, R7, and R12 each are independently selected from a hydrogen atom, an alkyl group, or an aryl group, the aryl group may have an alkyl group and a fluorine atom as a substituent, and R2 to R5 and R8 to R11 each are independently selected from a hydrogen atom and an alkyl group.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: December 2, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Naoki Yamada, Akihito Saitoh
  • Organic electroluminescent element and display
    Patent number: 8900726
    Abstract: Provided is an organic electroluminescent element which includes a pair of electrodes composed of a positive electrode and a negative electrode, with at least one of the electrodes being transparent or semi-transparent, and an organic compound layer interposed between the pair of electrodes and containing one or more charge transporting polyesters represented by the following formula (I) [in the formula (I), A1 represents at least one selected from structures represented by the following formula (II); and in the formula (II), X represents a group represented by the following formula (III)]:
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: December 2, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hidekazu Hirose, Takeshi Agata, Katsuhiro Sato
  • Monobenzochrysene derivative, a material for an organic electroluminescence device containing the same, and an organic electroluminescence device using the material
    Patent number: 8900724
    Abstract: A monobenzochrysene derivative shown by the following formula (1): wherein R1 to R14 are independently a hydrogen atom or a substituent, and at least one of R1 to R14 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms which does not contain an anthracene skeleton and a benzo[g]chrysene skeleton or a substituted or unsubstituted heteroaryl group having 5 to 50 ring carbon atoms which does not contain an anthracene skeleton and a benzo[g]chrysene skeleton, excluding the case where R8 and R9 are unsubstituted phenyl groups and R1 to R7 and R10 to R14 are hydrogen atoms and the case where R9 is an unsubstituted phenyl group and R1 to R8 and R10 to R14 are hydrogen atoms.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: December 2, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Masahiro Kawamura
  • Aromatic amine derivative and organic electroluminescence device using the same
    Patent number: 8895159
    Abstract: An aromatic amine derivative with a specific structure having a carbazole skeleton to which a diarylamino group bonds via a bonding group. An organic electroluminescence device which is composed of one or more organic thin film layers including at least one light emitting layer sandwiched between a cathode and an anode, wherein at least one of the organic thin film layers contains the aromatic amine derivative singly or as its mixture component. Organic electroluminescence devices with enhanced efficiency of light emission and a compound realizing the devices are provided.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: November 25, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yumiko Mizuki, Masahiro Kawamura, Nobuhiro Yabunouchi
  • Platinum (II) tetradentate ONCN complexes for organic light-emitting diode applications
    Patent number: 8877353
    Abstract: Described are novel platinum (II) containing organometallic materials. These materials show green to orange emissions with high emission quantum efficiencies. Using the materials as emitting materials; pure green emitting organic light-emitting diodes can be fabricated. Since the novel platinum (II) containing organometallic materials are soluble in common solvents, solution process methods such as spin coating and printing can be used for device fabrication.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: November 4, 2014
    Assignee: Versitech Limited
    Inventors: Chi Ming Che, Chi Fai Kui, Chi Chung Kwok
  • Dendrimer and organic light-emitting device using the same
    Patent number: 8865322
    Abstract: A dendrimer and an organic light-emitting device including an organic layer having the dendrimer.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: October 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeoung-In Yi, Yoon-Hyun Kwak, Seung-Gak Yang, Hee-Yeon Kim, Jae-Yong Lee
  • Materials for organic electroluminescent devices
    Patent number: 8859111
    Abstract: The present invention relates to 4,4?-substituted spirobifluorenes which are suitable, owing to excellent properties, as functional materials in organic electroluminescent devices. In addition, the present invention relates to a process for the preparation of 4,4?-substituted spirobifluorenes and to the use of these compounds in organic electroluminescent devices.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: October 14, 2014
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Susanne Heun, Esther Breuning
  • Cyclic phosphazene compounds and use thereof in organic light emitting diodes
    Patent number: 8859110
    Abstract: An organic light-emitting diode comprising at least one cyclic phosphazene compound, a light-emitting layer formed from at least one matrix material and at least one emitter material, wherein the at least one matrix material comprises at least one cyclic phosphazene compound, the use of cyclic phosphazene compounds in organic light-emitting diodes and a device selected from the group consisting of stationary visual display units, mobile visual display units and illumination units comprising at least one inventive organic light-emitting diode, and selected cyclic phosphazene compounds and processes for preparing them.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: October 14, 2014
    Assignees: BASF SE, Koninklijke Philips Electronics N.V., Osram Opto Semiconductors GmbH, Siemens Aktiengesellschaft
    Inventors: Evelyn Fuchs, Oliver Molt, Nicolle Langer, Christian Lennartz, Peter Strohriegl, Pamela Schroegel, Herbert Friedrich Boerner, Volker Van Elsbergen, Arvid Hunze, Ralf Krause, Guenter Schmid
  • Benzoxazole derivative, and light-emitting element, light-emitting device, and electronic device using the same
    Patent number: 8859108
    Abstract: An object is to provide a novel benzoxazole derivative. Another object is to reduce driving voltage of a light-emitting element. Still another object is to reduce power consumption of a light-emitting element, a light-emitting device, and an electronic device. A benzoxazole derivative represented by General Formula (G1) is provided. The benzoxazole derivative represented by General Formula (G1) has an electron-injecting property and an electron-transporting property; accordingly, it can be favorably used for a light-emitting element, a light-emitting device, and an electronic device.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: October 14, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroshi Kadoma, Sachiko Kawakami, Takahiro Ushikubo, Satoshi Seo
  • Organic compound and organic light emitting element using the same
    Patent number: 8859112
    Abstract: An organic compound represented by the following general formula [1] is provided. In the general formula [1], R1 to R3 are each independently selected from the group consisting of a hydrogen atom, a fluorine group, an alkyl group having 1 to 4 carbon atoms, and an aryl group, the aryl group is a phenyl group, a biphenyl group, or a terphenyl group, the aryl group may further include an alkyl group having 1 to 4 carbon atoms and/or a fluorine group as a substituent, and R4 to R17 are each independently selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, and a fluorine group.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: October 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Taiki Watanabe, Tetsuya Kosuge, Naoki Yamada, Akihito Saitoh