Patents Examined by Marie Yamnitzky
  • Organic light emitting devices having reduced pixel shrinkage
    Patent number: 7087321
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to efficient OLEDs comprising an array of pixels and having reduced pixel shrinkage. The devices of the present invention comprise further relates to materials for use as emissive materials which give reduced shrinkage when incorporated into an OLED.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: August 8, 2006
    Assignee: Universal Display Corporation
    Inventors: Raymond Kwong, Michael S. Weaver, Bin Ma, Jui-Yi Tsai, Michael Barone, David B. Knowles
  • Organic electro luminescence display using metallocene compound
    Patent number: 7087319
    Abstract: The present invention relates to an organic electroluminescence display using a metallocene compound, and more particularly to an organic electroluminescence display with a simple structure using a metallocene compound, which has superior photoconductivity, can be used as a p-type semiconductor material, and functions as a superior luminescent material, as a luminescent material.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: August 8, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jang-Sub Kim
  • Safe and effective biofilm inhibitory compounds and health-related uses thereof
    Patent number: 7087661
    Abstract: The present invention provides compounds and materials that reduce the accumulation of microorganisms a surface, by interfering with the attachment of the organisms to the surface. The compounds and materials are thus useful in preventing the formation of biofilms on surfaces in health-related environments. By preventing the formation of biofilms, the compounds formulated according to the present invention can be used in the fabrication of grafts, implants, medical devices in order to prevent infection thereof. The compounds formulated according to the present invention display an additional anticoagulant property, permitting their use in settings where decrease in blood coagulability is desirable.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: August 8, 2006
    Assignee: Cernofina, LLC
    Inventors: Randall S. Alberte, Richard C. Zimmerman
  • Photoactive lanthanide complexes with phosphine oxides, phosphine oxide-sulfides, pyridine N-oxides, and phosphine oxide-pyridine N-oxides, and devices made with such complexes
    Patent number: 7087323
    Abstract: The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a lanthanide complex.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: August 8, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Vladimir Grushin, Norman Herron, Viacheslav A. Petrov, Nora Sabina Radu, Ying Wang
  • Aromatic condensed-ring compound, light emitting device material and light emitting device using the same
    Patent number: 7083864
    Abstract: A light emitting device material comprising a compound represented by the following formula (1): wherein Ar11, Ar12 and Ar31 each represent an arylene group, Ar12, Ar22 and Ar32 each represent a substituent group or a hydrogen atom, provided that at least one among Ar11, Ar21, Ar31, Ar12, Ar22 and Ar32 has a condensed-ring arene or heteroarene structure, and Ar represents a trivalent arene or heteroarene group.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: August 1, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tatsuya Igarashi
  • Peropyrene compound, organic electroluminescent element and organic electroluminescent display
    Patent number: 7083867
    Abstract: An organic electroluminescent element contains a positive electrode, a negative electrode, and a thin organic layer arranged between the positive electrode and the negative electrode, wherein the thin organic layer comprises, as a luminescent material, a peropyrene compound represented by following Structural Formuala (1): wherein R1, R6, R8 and R13 may be the same as or different from one another and each represent a group represented by following Structural Formula (2); and R2, R3, R4, R5, R7, R9, R10, R11, R12 and R14 each represent hydrogen atom or a substituent: wherein R15 and R16 may be the same as or different from each other and each represent one of hydrogen atom, an alkyl group and an aryl group, where R15 and R16 may be bound to each other directly or indirectly.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: August 1, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Wataru Sotoyama, Tasuku Sato, Hiroyuki Sato, Azuma Matsuura, Norio Sawatari, Toshiaki Narusawa
  • Metal coordination compound and electroluminescence device
    Patent number: 7078115
    Abstract: A metal coordination compound having a basic structure represented by formula: MLmL?n (1), wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L? are mutually different bidentate ligands; m is 1, 2 or 3; wherein at least one bidentate ligand has a partial structure formed by condensation via an alkylene group having 2–10 carbon atoms, is provided. In an electroluminescence device composed of one or a plurality of organic films disposed between a cathode and an anode, at least one layer is a luminescence layer which is formed by incorporating luminescence molecules constituting the metal coordination compound having a structure of the formula (1) described above as a guest material in a host material thereby to provide an electroluminescence device producing luminescence at high efficiency and stably keeping a high luminance for a long period.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: July 18, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Takiguchi, Akira Tsuboyama, Shinjiro Okada, Jun Kamatani, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Manabu Furugori, Hidemasa Mizutani
  • Phosphorescence compound and electro field light emitting device having the same
    Patent number: 7078114
    Abstract: A phosphorescent compound is formed by synthesizing an orthometallated complex by using easily-synthesized ligands. An electroluminescent device having high luminous efficiency uses the phosphorescent compound. Moreover, a light-emitting device operating at a low voltage uses the electroluminescent device. A phosphorescent compound represented by general formula [formula 1] is synthesized. Further, an electroluminescent device containing the phosphorescent compound is formed. In order to generate phosphorescent emission more efficiently, a heavy metal is preferably used as a central metal from the perspective of heavy atom effects.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: July 18, 2006
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Hideko Inoue, Atsushi Tokuda, Ryoji Nomura
  • Photoactive lanthanide complexes with phosphine oxides, phosphine oxide-sulfides, pyridine N-oxides, and phosphine oxide-pyridine N-oxides, and devices made with such complexes
    Patent number: 7074505
    Abstract: The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a lanthanide complex.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: July 11, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Vladimir Grushin, Norman Herron, Viacheslav A. Petrov, Nora Sabina Radu, Ying Wang
  • Photoactive lanthanide complexes with phosphine oxides, phosphine oxides-sulfides, pyridine N-oxides, and phosphine oxide-pyridine N-oxides, and devices made with such complexes
    Patent number: 7074504
    Abstract: The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a lanthanide complex.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: July 11, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Vladimir Grushin, Norman Herron, Viacheslav A. Petrov, Nora Sabina Radu, Ying Wang
  • Luminescent organometallic compound and light emitting device
    Patent number: 7067202
    Abstract: A luminescent organometallic compound having the chemical structure represented by the general formula (1) or (2): [in the general formulas (1) and (2), A and B represent ring structures, M represents a metallic atom, X represents a hetero atom other than carbon and hydrogen, Y represents at least one electron-attracting group connecting to ring structure B, Lb represents a unidentate or multidentate ligand, and p, q and r represent positive integers.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: June 27, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Hiroyuki Fujii
  • Photoactive lanthanide complexes with phosphine oxides, phosphine oxide-sulfides, pyridine N-oxides, and phosphine oxide-pyridine N-oxides, and devices made with such complexes
    Patent number: 7063903
    Abstract: The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a lanthanide complex.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: June 20, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Vladimir Grushin, Norman Herron, Viacheslav A. Petrov, Nora Sabina Radu, Ying Wang
  • Electroluminescent devices comprising diketopyrrolopyrroles
    Patent number: 7060843
    Abstract: Electroluminescent device comprising in this order (a) an anode (b) a hole transporting layer (c) a light-emitting layer (d) optionally an electron transporting layer and (e) a cathode and a light-emitting substance, wherein the light-emitting substance is a diketopyrrolopyrrole represented by formula I or formula III processes for the preparation of compounds I, its uses and compositions comprising the compounds I and/or III.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: June 13, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Junji Otani, Hiroshi Yamamoto, Norihisa Dan, Abul Iqbal, Robert Moretti
  • Polymers having attached luminescent metal complexes and devices made with such polymers
    Patent number: 7060372
    Abstract: The present invention is generally directed to a polymeric metal complex comprising a polymeric material having a plurality of a first-type functional groups, wherein at least a portion of the functional groups are coordinated to at least one metal containing complex, polymeric-metal complex salts comprising at least one polymeric material having a plurality of first-type functional groups having a charge, and at least one metal complex having an opposite charge. It further relates to devices that are made with the polymeric metal complex or the polymeric-metal complex salt.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: June 13, 2006
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Michael Fryd, Vladimir Grushin, Norman Herron, Mookkan Periyasamy, Viacheslav A. Petrov, Nora Sabina Radu
  • Substituted diphenylanthracene compounds for organic electroluminescence devices
    Patent number: 7053255
    Abstract: A compound having a of the present invention has the diphenylanthracene structure at the center and a specific structure substituted with an aryl group at end portions. An organic electroluminescence device comprises a plurality of layers of thin films of organic compounds which comprise a light emitting layer or a plurality of layers comprising a light emitting layer and are disposed between a pair of electrodes and at least one of the layers of thin films of organic compounds comprises the above compound. The compound exhibits excellent efficiency of light emission and heat resistance, has a long life and emits bluish light having excellent purity of color and the organic electroluminescence device comprises the compound and exhibits the same advantageous properties.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: May 30, 2006
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hidetsugu Ikeda, Hiromasa Arai, Masakazu Funahashi, Chishio Hosokawa
  • Substituted poly(arylene vinylenes), process for their preparation and their use in electroluminescent devices
    Patent number: 7041388
    Abstract: The present invention describes poly(arylenevinylenes) comprising poly(arylphenylenevinylene) units whose phenylene unit bears a further aryl substituent in the para or meta position relative to the first aryl radical (formula (I)), as a result of which the operating life in EL elements can be increased and high EL efficiencies can be maintained.
    Type: Grant
    Filed: October 28, 2000
    Date of Patent: May 9, 2006
    Assignee: Semiconductors GmbH
    Inventors: Hubert Spreitzer, Heinrich Becker, Philipp Stössel
  • Organometal complex, electroluminescence material using the complex, and electroluminescence element using the complex
    Patent number: 7041390
    Abstract: Organometal complexes which are obtainable with a good yield by using a ligand which can be easily synthesized are provided. The organometal complexes are excellent in heat resistance. An electroluminescence element having high light emission efficiency is manufactured using the organometal complex. Therefore, the organometal complex represented by the general formula (1) is synthesized. Further, this is applied to the electroluminescence element.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: May 9, 2006
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Hideko Inoue, Atsushi Tokuda
  • Light-emitting element and novel iridium complexes
    Patent number: 7037598
    Abstract: A light-emitting element comprising: a pair of electrodes; and at least one organic compound layer comprising a light-emitting layer provided between the electrodes, the light-emitting layer comprising at least one compound represented by formula (1) as defined herein, wherein the light-emitting layer comprises a host compound and the compound represented by the formula (1), and the host compound has an energy level of a lowest triplet excited state (T1 level) of 62 kcal/mol (259 kJ/mol) to 85 kcal/mol (355 kJ/mol).
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: May 2, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tatsuya Igarashi
  • Organic light emitting devices having reduced pixel shrinkage
    Patent number: 7029765
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to efficient OLEDs comprising an array of pixels and having reduced pixel shrinkage. The devices of the present invention comprise further relates to materials for use as emissive materials which give reduced shrinkage when incorporated into an OLED.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: April 18, 2006
    Assignee: Universal Display Corporation
    Inventors: Raymond Kwong, Michael S. Weaver, Bin Ma, Jui-Yi Tsai, Michael Barone, David B. Knowles
  • Organic photosensitive optoelectronic device with an exciton blocking layer
    Patent number: 7026041
    Abstract: Organic photosensitive optoelectronic devices (“OPODs”) are disclosed which include an exciton blocking layer to enhance device efficiency. Single heterostructure, stacked and wave-guide type embodiments are disclosed. Photodetector OPODs having multilayer structures and an exciton blocking layer are also disclosed. Guidelines for selection of exciton blocking layers are provided.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: April 11, 2006
    Assignee: The Trustees of Princeton University
    Inventors: Stephen R. Forrest, Vladimir Bulovic, Peter Peumans