Patents Examined by Alexander C Kollias
  • Patent number: 11572483
    Abstract: An aqueous ink composition for inkjet printing on non-porous substrates and a method for forming the same are disclosed. For example, the method includes preparing a primary polymer latex with an aromatic functional group, a hydrogen-bonding group, a flexible side-chain, and an ionic functional group and mixing the primary polymer latex with a secondary latex binder and one or more co-solvents.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: February 7, 2023
    Assignee: Xerox Corporation
    Inventors: Cristina Resetco, Syed Ali, Carla Brown
  • Patent number: 11569457
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode and a plurality of organic layers disposed between the first electrode and the second electrode, in which at least one of the organic layers includes a polycyclic compound including a plurality of electron donors and an electron acceptor connecting the electron donors, at least one of the electron donors is a condensed ring including a borepine core, and the electron acceptor includes a phenyl group including, as a substituent, at least one cyano group or a heterocycle including at least one nitrogen atom, or a heteroaryl group including an oxygen atom or a sulfur atom for forming a ring, thereby achieving improved emission efficiency.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jungsub Lee, Hyein Jeong, Hye Jeong Park
  • Patent number: 11569458
    Abstract: The present invention relates to iridium complexes suitable for use in organic electroluminescent devices, especially as emitters.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: January 31, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Philipp Stoessel, Armin Auch, Falk May, Jochen Pfister
  • Patent number: 11535687
    Abstract: Disclosed is a method of preparing a rubber composition comprising the steps of (a) blending in at least one preparatory mixing step at least one natural or synthetic rubbery polymer, a silica filler, a silica coupling agent, and at least one vulcanization accelerator; and (b) subsequently blending therewith in a final mixing step a sulfur curative, wherein the average glass transition temperature of the polymer(s) is ?55° C. or less.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: December 27, 2022
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventor: Maryangel G. Dunlavy
  • Patent number: 11532794
    Abstract: A compound of Formula 1, as disclosed herein, is useful in an organic light emitting device and apparatuses including the same.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: December 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chanseok Oh, Sunyoung Pak, Junha Park, Hankyu Pak, Jangyeol Baek, Munki Sim, Hyoyoung Lee, Minjung Jung
  • Patent number: 11518856
    Abstract: Rubber components of a tire comprising a diene elastomer and at least 1 phr of reduced graphene oxide nanoparticles having a specific surface area of at least 700 m2/g, an oxygen content of no more than 6 at %, and a ratio of non-aromaticity to aromaticity ID/IG of at least 0.7 as determined by Raman spectroscopy. Methods of preparing such rubber compositions in an internal mixer for achieving good distribution and dispersion are also included.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: December 6, 2022
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Frederic Vautard
  • Patent number: 11515494
    Abstract: A compound including a first ligand LA having a structure of Formula I is disclosed. The compound is useful a an emitter dopants in OLEDs for enhancing the OLED performance.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: November 29, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chun Lin, Zhiqiang Ji
  • Patent number: 11505566
    Abstract: Organic metal compounds and organic light-emitting devices employing the same are provided. The organic metal compound has a chemical structure of Formula (I) or Formula (II): In particular, one of the following two conditions (1) and (2) is met: (1) R1 is deuterium or C1-6 deuterated alkyl group, when R3 and R4 are independently hydrogen, halogen, C1-6 alkyl group, C1-6 fluoroalkyl or C3-12 heteroaryl group; and (2) R1 is hydrogen, deuterium, C1-6 alkyl group, C1-6 deuterated alkyl group, C3-12 heteroaryl group, or C6-12 aryl group, when at least one of R3 and R4 is C6-12 aryl group or C6-12 fluoroaryl group.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: November 22, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Chieh Pao, Jia-Lun Liou, Han-Cheng Yeh, Po-Jung Hsu, Mei-Rurng Tseng
  • Patent number: 11502260
    Abstract: Irridium complexes with molecular formula of L3Ir, together with application thereof and organic electroluminescent devices, wherein Ir is the central metal atom and L is a ligand. The structure of these complexes is of the following formula (I): Ar is selected from substituted or unsubstituted aryl groups with 6 to 30 carbon atoms, and substituted or unsubstituted heterocyclic aryl groups with 4 to 30 carbon atoms. R1 to R7 are each independently selected from atoms or groups described herein. The substituent group on above-mentioned Ar or R1 to R7 is independently selected from F, Cl, Br, I, CHO, CN, substituted or unsubstituted alkyl or cycloalkyl groups with 1 to 30 carbon atoms, fluoroalkyl groups, alkoxy groups, and thioalkoxy groups.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 15, 2022
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Juan Qiao, Jie Xue
  • Patent number: 11476428
    Abstract: The present disclosure relates to the field of OLED technologies and provides a compound having TADF property. In an embodiment, the compound has a structure represented by Formula (1), in which L1 and L2 are each a hydrogen atom, phenyl, naphthyl, anthracyl, pyridyl, pyrimidinyl, and pyrazinyl; R1 and R2 are each aryl or and heteroaryl, such as a carbazole-derived group, an acridine-derived group, diarylamino, a diarylamine-derived group, and the like. In the present disclosure, the double boron heterocyclic structure functions not only as an electron acceptor but also as a linker. In the compound according to the present disclosure, by attaching a group having a large steric hindrance to the boron atom of the boron heterocyclic ring, the molecules the compound are prevented from aggregating, and thus a ?-aggregation or excimer formed by direct accumulation of the conjugate plane is avoided, thereby improving the light-emitting efficiency.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: October 18, 2022
    Assignee: WuHan TianMa Micro-electronics CO., LTD.
    Inventors: Kaibo Zhang, Kui Wang, Tiansheng Ye
  • Patent number: 11469384
    Abstract: A novel compound having a first ligand LA of is disclosed. The compound is useful as emitter dopant in OLEDs.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: October 11, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi Tsai, Alexey Borisovich Dyatkin, Zhiqiang Ji, Pierre-Luc T. Boudreault, Walter Yeager, Harvey Wendt
  • Patent number: 11469383
    Abstract: A compound of Formula I wherein L is a bidentate ligand coordinated to a metal M; each ring K is the same, and represents a 5-membered or 6-membered heteroaryl ring and with ring J forms a 5-member cyclometallated ring; A1 and A1? are the same and selected from CR1 or N; A2 and A2? are the same and selected from CR2 or N; A3 and A3? are the same and selected from CR3 or N; each R4 with its corresponding ring position R4? are the same, and R1 to R5 are as defined in the specification. An OLED with an organic layer that includes a compound of Formula I and a consumer product that includes the OLED. A method of making a compound of Formula I is also described.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: October 11, 2022
    Assignee: Universal Display Corporation
    Inventors: Jui-Yi Tsai, Pierre-Luc T. Boudreault, Erik Mora
  • Patent number: 11462690
    Abstract: An organic electroluminescence device includes a first electrode; a second electrode on the first electrode; and a plurality of organic layers between the first electrode and the second electrode, where a polycyclic compound represented by Formula 1-1 or Formula 1-2 is included in at least one organic layer of the plurality of organic layers. The polycyclic compound is represented by Formula 1-1 or Formula 1-2.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: October 4, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jungsub Lee, Hyein Jeong, Hyejeong Park
  • Patent number: 11459349
    Abstract: A compound having a first ligand LA of Formula I, is disclosed. In the structure of Formula I, Z1 through Z7 are each independently C or N; ring B is a 5-membered or 6-membered ring; each RA, RB, and RC is independently hydrogen or one of a variety of substituents; any two substituents in RC may be joined or fused together to form a ring. In the compound, LA is complexed to a metal M, which is optionally coordinated to other ligands. In addition, ligand LA is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: October 4, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Bin Ma, Pierre-Luc T. Boudreault
  • Patent number: 11450822
    Abstract: A neutral compound including a first ligand LA represented by Formula I or Formula II is disclosed.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 20, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Bin Ma, Zhiqiang Ji
  • Patent number: 11434420
    Abstract: Provided are a color conversion composition which contains at least one kind of compound represented by a specific general formula, a compound which is used in the color conversion composition and represented by a specific general formula, and a light emitting device which has a color conversion portion consisting of the color conversion composition and a light source.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: September 6, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Kazuhei Kaneko, Yoshinori Kanazawa, Nobutaka Fukagawa
  • Patent number: 11434388
    Abstract: A polymer-bound refill for writing, drawing and/or painting devices, in particular for pencils or coloured pencils, including at least one binder, at least one wax, at least one colouring agent and at least one filler. The refill includes polylactide as binder.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: September 6, 2022
    Assignee: STAEDTLER MARS GMBH & CO. KG
    Inventors: Andreas Thies, Martin Jakob, Jürgen Adler
  • Patent number: 11430961
    Abstract: The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: August 30, 2022
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichi Ishibashi, Kazuhiro Nagayama, Hideji Komatsu, Koichiro Iida
  • Patent number: 11427724
    Abstract: A pigment printing ink jet ink composition includes a pigment, a resin particle, an organic solvent, and water. The organic solvent includes an amide compound represented by the following general formula (1). In the general formula (1), R1 represents a straight chain or branched alkyl group having 1 to 6 carbon atoms, and R2 and R3 each independently present hydrogen atoms or a straight chain or branched alkyl group having 1 to 4 carbon atoms.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: August 30, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masakazu Ohashi, Kosuke Chidate, Toshiyuki Miyabayashi
  • Patent number: 11407915
    Abstract: An ink composition for continuous deflected ink jet printing, liquid at ambient temperature is disclosed. One aspect is an ink composition comprising: a solvent including organic solvent compound(s), and optionally water, the solvent representing at least 20% by weight of the total weight of the ink. Furthermore, there is at least one compound imparting conductivity to the ink composition, chosen from among the ionic liquids, the compound representing 0.2% by weight to 4% by weight of the total weight of the ink composition, preferably 0.5 to 3% by weight of the total weight of the ink composition. Lastly, the ink composition includes less than 10% by weight, preferably less than 5% by weight, more preferably less than 1% by weight, and most preferably 0% by weight of water relative to the total weight of the ink composition.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: August 9, 2022
    Assignee: MARKEM-IMAJE HOLDING
    Inventors: Pierre De Saint-Romain, Jean-Yves Sabys