Patents by Inventor Natasha M J Conway
Natasha M J Conway has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10985322Abstract: Light-emitting composition and devices including the same, the composition including a fluorescent light-emitting material and a polymer having a conjugating repeat unit and a non-conjugating repeat unit in a backbone of the polymer, and in which the conjugating repeat unit provides at least one conjugation path between repeat units linked to it; the non-conjugating repeat unit reduces conjugation of the polymer as compared to a polymer in which the non-conjugating repeat unit is absent; and a triplet excited state energy level of the light-emitting material is higher than a triplet excited state energy level of the non-conjugating repeat unit.Type: GrantFiled: October 13, 2011Date of Patent: April 20, 2021Assignees: Cambridge Display Technology, Ltd., Sumitomo Chemical Company LimitedInventors: Natasha M. J. Conway, Jonathan Pillow, Thomas Pounds, Fredrik Jakobsson, Christian Nielsen
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Publication number: 20180138414Abstract: An organic light-emitting device comprising an anode (101), a cathode (105) and an homogeneous organic light-emitting layer (103) between the anode and the cathode wherein: the light-emitting layer comprises a first light-emitting material mixed with an inert material; the inert material has a HOMO level (HOMOIM) that is further from vacuum than a HOMO level (HOMOLEM) of the first light-emitting material and a LUMO level (LUMOIM) that is closer to vacuum than a LUMO level(LUMOLEM) of the first light-emitting material; and the inert material comprises up to 25 weight % of the light-emitting layer.Type: ApplicationFiled: May 13, 2016Publication date: May 17, 2018Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Michael Cass, Matthew Roberts, Natasha M.J. Conway
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Patent number: 9761820Abstract: A polymer comprising an optionally substituted repeat unit of formula (I): wherein R1 and R2 in each occurrence are independently selected from H or a substituent; R1 and R2 may be linked to form a ring; and A is an optionally substituted linear, branched or cyclic alkyl group.Type: GrantFiled: January 31, 2013Date of Patent: September 12, 2017Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Jonathan Pillow, Natasha M. J. Conway
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Patent number: 9676900Abstract: A polymer comprising a repeat unit of formula (I): (I) wherein Ar6 and Ar7 each independently represent a substituted or unsubstituted aryl or heteroaryl group; Sp represents a spacer group comprising a chain of at least 2 aliphatic carbon atoms spacing Ar6 from Ar7; m is at least 1; and if m is greater than 1 then —(Ar7)m forms a linear or branched chain of Ar7 groups in which Ar7 in each occurrence may be the same or different.Type: GrantFiled: January 31, 2012Date of Patent: June 13, 2017Assignees: Cambridge Display Technology, Ltd., Sumitomo Chemical Company LimitedInventors: Sophie Barbara Heidenhain, Matthew Roberts, Michael Cass, Natasha M. J. Conway, Fredrik Jakobsson
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Publication number: 20170150573Abstract: A method of increasing the lifetime of an ITO-free organic lighting system comprises: providing an organic lighting element having a substrate (12) bearing a set of anode electrode metal tracks (14), a conductive organic layer (16) over said metal tracks, an organic light emitting layer (18) over said conductive organic layer, and a cathode electrode layer (20) over said organic light emitting layer, wherein said metal comprises copper, and wherein said conductive organic layer comprises a doped conducting polymer, and driving the organic lighting element with a pulsed current drive. A biphasic pulse is employed having a first, on-phase with a defined current drive and a second, off-phase with a drive having a defined potential difference of zero volts across the lighting element. The anode electrode metal may have a higher work function than the cathode electrode layer. During said zero level drive portion the different work functions provide a reverse bias electric field within the organic lighting element.Type: ApplicationFiled: June 19, 2015Publication date: May 25, 2017Applicant: Cambridge Display Technology LimitedInventors: Natasha M.J. Conway, Colin Baker, Philip Benzie, Alexander Doust, Niall MacCarthy
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Publication number: 20160190507Abstract: A layered structure for an organic electronic device comprising: •(i) a substrate; •(ii) an electrode deposited on said substrate; and •(iii) a hole injection layer (HIL) deposited on said electrode, wherein said electrode comprises a metal grid and an organic charge transporting polymer layer (CTL) which, together with said substrate, encapsulates said metal grid and protects it from being attacked by acidic species in the hole injection layer.Type: ApplicationFiled: August 13, 2014Publication date: June 30, 2016Applicant: Cambridge Display Technology LimitedInventors: Alexander Doust, Natasha M. J. Conway, Colin Baker
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Publication number: 20150307652Abstract: A polymer comprising a repeat unit of formula (I): (I) wherein Ar6 and Ar7 each independently represent a substituted or unsubstituted aryl or heteroaryl group; Sp represents a spacer group comprising a chain of at least 2 aliphatic carbon atoms spacing Ar6 from Ar7; m is at least 1; and if m is greater than 1 then —(Ar7)m forms a linear or branched chain of Ar7 groups in which Ar7 in each occurrence may be the same or different.Type: ApplicationFiled: January 31, 2012Publication date: October 29, 2015Applicants: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Sophie Barbara Heidenhain, Mathew Roberts, Micheal Cass, Natasha M.J. Conway, Fredrik Jakobsson
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Publication number: 20150028313Abstract: A polymer comprising an optionally substituted repeat unit of formula (I): wherein R1 and R2 in each occurrence are independently selected from H or a substituent; R1 and R2 may be linked to form a ring; and A is an optionally substituted linear, branched or cyclic alkyl group.Type: ApplicationFiled: January 31, 2013Publication date: January 29, 2015Inventors: Jonathan Pillow, Natasha M.J. Conway
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Publication number: 20130292657Abstract: Light-emitting composition and devices including the same, the composition including a fluorescent light-emitting material and a polymer having a conjugating repeat unit and a non-conjugating repeat unit in a backbone of the polymer, and in which the conjugating repeat unit provides at least one conjugation path between repeat units linked to it; the non-conjugating repeat unit reduces conjugation of the polymer as compared to a polymer in which the non-conjugating repeat unit is absent; and a triplet excited state energy level of the light-emitting material is higher than a triplet excited state energy level of the non-conjugating repeat unit.Type: ApplicationFiled: October 13, 2011Publication date: November 7, 2013Applicants: Sumitomo Chemical Company Limited, Cambridge Display Technology, Ltd.Inventors: Natasha M.J. Conway, Jonathan Pillow, Thomas Pounds, Fredrik Jakobsson, Christian Nielsen
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Publication number: 20040195966Abstract: A method of providing a layer including a metal or silicon or germanium and oxygen on a surface, the method including the steps of forming an adsorbed layer less than 12 monolayers thick on the surface by exposing it to a liquid or vapor containing metal-, silicon-, or germanium-containing organic molecules, and treating this layer by exposure to a glow discharge in an oxygen containing gas, thereby converting the adsorbed layer to a layer including silicon (or germanium) and oxygen.Type: ApplicationFiled: April 19, 2004Publication date: October 7, 2004Inventors: Natasha M J Conway, Alan Mosley