Patents Examined by Brett A Crouse
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Patent number: 9070884Abstract: The present invention provides organic light emitting devices having a combined emission from at least two emissive materials, a fluorescent blue emissive material and a phosphorescent emissive material. The device may further comprise additional fluorescent or phosphorescent emissive materials. In preferred embodiments, the invention provides OLEDs having three different emissive materials—a red emissive material, a green emissive material and a blue emissive material. The invention provides a device architecture which is optimized for efficiency and lifetime by using a combination of fluorescent and phosphorescent emitters. Further, in preferred embodiments the device architecture provides a high color-stability of the light emission over a wide range of currents or luminances.Type: GrantFiled: April 13, 2005Date of Patent: June 30, 2015Assignee: Universal Display CorporationInventors: Yeh-Jiun Tung, Michael S. Weaver, Michael Hack, James Esler
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Patent number: 8993081Abstract: A method of manufacturing a reinforced tubular membrane comprises the steps of manufacturing the tubular support from monofilament thread, impregnating the support with membrane dope and adjusting the inner and the outer diameter of the membrane. A coating apparatus comprises a casting bob and an orifice to adjust respectively the inner and outer diameter of the membrane. A tubular reinforced polymeric membrane comprises a tubular support and membrane substance. The tubular support is made of monofilament thread and has a sufficiently open structure (openings larger than 0.1 mm). Touching and/or engaging parts of the thread may be linked prior to impregnating the support with membrane dope. The support may comprise loops of the monofilament thread, which are also linked.Type: GrantFiled: April 10, 2007Date of Patent: March 31, 2015Assignee: Vlaamse Instelling Voor Technologish Onderzoek N.V. (VITO)Inventors: Wim Doyen, Marc Verbeke, Herman Beckers, Bart Molenberghs, Rob Muyshondt
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Patent number: 8969492Abstract: Aqueous dispersions comprise a specific copolymer based on acrylate, a specific paraffin wax and one or more dispersants. The dispersions have high stability and are useful for treating textile fabrics, conferring outstanding water-repellent properties thereon.Type: GrantFiled: March 6, 2010Date of Patent: March 3, 2015Assignee: Huntsman Textile Effects (Germany) GmbHInventors: Andreas Fuchs, Wilhelm Artner, Barbara Zwikirsch
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Patent number: 8872423Abstract: An electroluminescent device is provided with an anode, a cathode, and an organic layer having at least a light-emitting layer and held between the anode and the cathode. A layer with a nitrogen-containing heterocycle derivative therein is arranged between the anode and the light-emitting layer. The layer with the nitrogen-containing heterocycle derivative contained therein has a thickness greater than a hole supply layer arranged between the anode and the light-emitting layer.Type: GrantFiled: February 26, 2008Date of Patent: October 28, 2014Assignee: Sony CorporationInventors: Emiko Kambe, Akifumi Nakamura, Yasunori Kijima, Hiroshi Yamamoto
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Patent number: 8872422Abstract: The present invention relates to a dinaphthyl ethylene derivative of formula (I), a process for preparing it, a film prepared from it useful in the manufacture of an organic light emitting device (OLED), an OLED including the film, and the use of the dinaphthyl ethylene derivative in the manufacture of an OLED. Wherein R1 to R16 are defined as in the specification.Type: GrantFiled: January 30, 2008Date of Patent: October 28, 2014Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd.Inventors: Yong Qiu, Han Chen, Yinkui Li
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Patent number: 8846552Abstract: A novel terminally modified imide oligomer having excellent solubility in organic solvents, excellent solution storage stability, and excellent molding properties such as low melt viscosity. Also, a varnish obtained by dissolving the terminally modified imide oligomer in an organic solvent; a cure product obtained by using the terminally modified imide oligomer and having excellent thermal and mechanical characteristics such as heat resistance, elastic modulus, tensile strength at break and tensile elongation at break; a prepreg; and a fiber-reinforced laminate. The soluble terminally modified imide oligomer is represented by general formula (1). In the formula, R1 and R2 each represents a divalent aromatic diamine residue; R3 and R4 each represents a tetravalent aromatic tetracarboxylic acid residue; R5 and R6 each represents a hydrogen atom or a phenyl group, with R5 or R6 being a phenyl group; m and n satisfy the following relations: m?1, n?0, 1?m+n?20 and 0.Type: GrantFiled: September 3, 2009Date of Patent: September 30, 2014Assignees: Kaneka Corporation, Japan Aerospace Exporation AgencyInventors: Masahiko Miyauchi, Yuichi Ishida, Toshio Ogasawara, Rikio Yokota
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Patent number: 8779655Abstract: An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. The organic thin-film layer includes at least one emitting layer. The at least one emitting layer contains at least one phosphorescent material and a host material represented by the following formula (1).Type: GrantFiled: July 3, 2008Date of Patent: July 15, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
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Patent number: 8610345Abstract: A light emitting device material containing a pyrene compound of formula (1) and a light emitting device.Type: GrantFiled: September 8, 2006Date of Patent: December 17, 2013Assignee: TORAY Industries, Inc.Inventors: Seiichiro Murase, Kazumasa Nagao, Kazunori Sugimoto, Takeshi Ishigaki, Takafumi Ogawa
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Patent number: 8587192Abstract: An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer contains: at least one phosphorescent material; and a host material represented by the following formula (1).Type: GrantFiled: December 7, 2011Date of Patent: November 19, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
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Patent number: 8487527Abstract: The present invention relates to organic light emitting devices (OLEDs) comprising an electroluminescent material layer comprising a mixture of at least two materials having different electron and hole transport capacities, and an electron transport layer comprising a triazine. Display devices comprising the OLEDs are also disclosed.Type: GrantFiled: May 4, 2005Date of Patent: July 16, 2013Assignee: LG Display Co., Ltd.Inventors: Hany Aziz, Zoran D. Popovic, Jennifer A. Coggan, Nan-Xing Hu
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Patent number: 8455376Abstract: An adhesive preparation comprising a stretchable support and an adhesive layer laminated on at least one side of the support, wherein the stretchable support comprises a interlock woven fabric subjected to crimping processing, the adhesive layer contains 10% by mass or more of methyl salicylate with respect to the total mass of the layer, the whole adhesive preparation has moisture permeability of 1 to 350 g/m2·24 hr measured at a temperature of 40° C. and a relative humidity of 90%, and the methyl salicylate has a plasma AUC0-24 ranging from 3.0 to 60.0 ng·hr/mL in terms of a mean±standard deviation, and salicylic acid as a metabolite of the methyl salicylate has a plasma AUC0-24 ranging from 5000 to 13000 ng·hr/mL in terms of a mean±standard deviation, when the adhesive preparation is applied to a human skin for 8 hours such that an application amount of the adhesive layer applied is 50 to 300 g/m2 and a contact area is 280 cm2.Type: GrantFiled: August 1, 2007Date of Patent: June 4, 2013Assignee: Hisamitsu Pharmaceutical Co., Inc.Inventors: Kiyomi Tsuruda, Shinji Yamasoto, Kouki Shoho, Masaru Nakanishi
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Patent number: 8449989Abstract: Disclosed is a compound represented by formula 1: wherein each of A, X, Y, Y? and Y? has the same meaning as described herein. When used in an organic light emitting device, the compound represented by formula 1 has at least one function selected from the group consisting of hole injection, hole transport, light emitting, electron transport, electron injection, etc., depending on the type of each unit forming the trimer or substituents in each unit. An organic light emitting device is also disclosed. The organic light emitting device includes a first electrode, an organic film having one or more layers and a second electrode, laminated successively, wherein at least one layer of the organic film includes at least one compound represented by formula 1.Type: GrantFiled: October 29, 2008Date of Patent: May 28, 2013Assignee: LG Chem, Ltd.Inventors: Kong Kyeom Kim, Min Jeong Lee, Yeon Hwan Kim, Jun Gi Jang
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Patent number: 8427046Abstract: The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein R1 to R9 represent a hydrogen atom, an aryl group, or an alkyl group; R1 to R9 may be the same or different from each other; and R1 to R9 may further have an aryl group or an alkyl group as a substituent in the case where R1 to R9 are an aryl group or an alkyl group.Type: GrantFiled: May 16, 2006Date of Patent: April 23, 2013Assignee: Mitsubishi Chemical CorporationInventors: Masayoshi Yabe, Masayo Fugono, Koichiro Iida, Masako Takeuchi, Tomoyuki Ogata
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Patent number: 8330350Abstract: An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer includes at least one phosphorescent material and a host material represented by the following Formula (1).Type: GrantFiled: April 23, 2008Date of Patent: December 11, 2012Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
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Patent number: 8278819Abstract: In an organic electroluminescence device including a cathode and an anode, at least an emitting layer and an electron transporting layer are provided between the cathode and the anode. The emitting layer contains a host material formed of a naphthacene derivative represented by the following formula (1) and a dopant material formed of a compound having a pyrromethene skeleton represented by the following formula (2) or a metal complex of the compound. The electron transporting layer is preferably a benzoimidazole derivative.Type: GrantFiled: March 7, 2008Date of Patent: October 2, 2012Assignee: Idemitsu Kosan Co., Ltd.Inventors: Chishio Hosokawa, Takayasu Sado, Kiyoshi Ikeda
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Patent number: 8264140Abstract: An organic electroluminescence element includes a pair of electrodes composed of an anode and a cathode, at least one of which is transparent or semitransparent, and one or more organic compound layers disposed between the pair of electrodes, wherein at least one of the organic compound layers comprises at least one charge-transporting polyester consisting of repeating units containing, as a partial structure, at least one structure represented by the following formula (I-1).Type: GrantFiled: March 19, 2008Date of Patent: September 11, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Koji Horiba, Hidekazu Hirose, Tadayoshi Ozaki, Yohei Nishino, Mieko Seki, Takeshi Agata, Akira Imai, Katsuhiro Sato, Kiyokazu Mashimo, Hirohito Yoneyama, Toru Ishii, Daisuke Okuda
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Patent number: 8217570Abstract: Provided are an anthracene derivative having a heteroaryl group containing a nitrogen-containing six-membered ring and having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer contains the anthracene derivative described above in the form of a single component or a mixed component. Provided are the organic electroluminescence device in which homogeneous light emission is obtained over a long period of time and which has a long lifetime and the anthracene derivative which materializes the same.Type: GrantFiled: November 25, 2005Date of Patent: July 10, 2012Assignee: Idemitsu Kosan Co., Ltd.Inventors: Masahiro Kawamura, Chishio Hosokawa
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Materials for injecting or transporting holes and organic electroluminescence devices using the same
Patent number: 8198801Abstract: The present invention relates to a novel compound that can significantly improve the lifespan, efficiency and thermal stability of an organic light emitting device, and to an organic electroluminescence device or light emitting device comprising the compound in an organic compound layer is also disclosed.Type: GrantFiled: March 18, 2005Date of Patent: June 12, 2012Assignee: LG Chem, Ltd.Inventors: Ji Eun Kim, Jae Chol Lee, Kong Kyeom Kim, Jae Soon Bae, Jun Gi Jang, Sang Young Jeon, Min Soo Kang, Wook Dong Cho, Byung Sun Jeon, Yeon Hwan Kim -
Patent number: 8179035Abstract: A method for selecting two different light-emitting materials for use in an OLED device, each of which produces different color light, which combine to produce white light. Each light emitting material has its own point on a chromaticity diagram, and the light-emitting materials are selected such that, when a line is drawn between the first point and the second point, it passes through a desired white area defined on a chromaticity diagram.Type: GrantFiled: December 19, 2007Date of Patent: May 15, 2012Assignee: Global OLED Technology LLCInventors: Jeffrey P. Spindler, Tukaram K. Hatwar, Michele L. Ricks
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Patent number: 8174182Abstract: A method for selecting two different light-emitting materials for use in an OLED device, each of which produces different color light, which combine to produce white light. Each light emitting material has its own point on a chromaticity diagram, and the light-emitting materials are selected such that, when a line is drawn between the first point and the second point, it passes through a desired white area defined on a chromaticity diagram.Type: GrantFiled: November 17, 2004Date of Patent: May 8, 2012Assignee: Global OLED Technology LLCInventors: Jeffrey P. Spindler, Tukaram K. Hatwar, Michele L. Ricks