Patents by Inventor Jonathan Pillow
Jonathan Pillow 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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Publication number: 20230174689Abstract: A light-emitting polymer comprising a repeat unit of formula (I): R1-R4 are each independently H or a substituent; and Ar1 and Ar2 are each independently an aromatic or heteroaromatic group selected from formulae (IIa) and (IIb): The polymer may be formed from a non-luminescent or weakly luminescent monomer.Type: ApplicationFiled: March 31, 2021Publication date: June 8, 2023Applicant: Sumitomo Chemical Co., Ltd.Inventors: Florence Bourcet, Jonathan Pillow, Martin Humphries
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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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Patent number: 10573817Abstract: A composition comprising a first material substituted with at least one group of formula (I) and a second material substituted with at least one group selected from groups of formulae (IIa) and (IIb): wherein: Sp1 and Sp2 are spacer groups; NB independently in each occurrence is a norbornene group that may be unsubstituted or substituted with one or more substituents; n1 and n2 are 0 or 1; m1 is 1 if n1 is 0 and m1 is at least 1 if n1 is 1; m2 is 1 if n2 is 0 and m2 is at least 1 if n2 is 1; Ar1 represents an aryl or heteroaryl group; R1 independently in each occurrence is H or a substituent; and * represents a point of attachment to the first or second material. The composition may be used to form a layer of an organic electronic device, for example the hole-transporting layer of an organic light-emitting device.Type: GrantFiled: July 8, 2015Date of Patent: February 25, 2020Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Jonathan Pillow, Martin Humphries, Ruth Pegington, Florence Bourcet, Yonek Hleba, Thomas Kugler, Sheena Zuberi
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Patent number: 10403895Abstract: The present invention relates to an organic flow cell battery having a material comprising an organic molecule that can be used as the electroactive redox material for both electrodes of the battery. By enabling two-electron processes both of the oxidation and reduction to occur in a single molecule, a total of 4-electron transitions is achieved, which allows the organic molecule to be used on both sides of the separator, reducing material costs and allowing the battery to be charge in either direction with equal ease.Type: GrantFiled: December 23, 2015Date of Patent: September 3, 2019Assignee: Cambridge Display Technology LimitedInventor: Jonathan Pillow
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Patent number: 10396287Abstract: An organic electronic device comprising an anode, a cathode, a semiconducting layer between the anode and the cathode and a hole transporting layer between the anode and the semiconducting layer, the hole-transporting layer comprising a co-polymer comprising repeat units of formula (I) and one or more co-repeat units: (I) wherein: Ar1 independently in each occurrence represents a fused aryl or fused heteroaryl group that may be unsubstituted or substituted with one or more substituents; Ar2 represents an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; R independently in each occurrence represents a substituent; and m is 1 or 2, preferably 1; and each Ar1 is directly bound to an aromatic or heteroaromatic group of a co-repeat unit.Type: GrantFiled: January 16, 2013Date of Patent: August 27, 2019Assignees: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Jonathan Pillow, Richard J. Wilson, Sophie Barbara Heidenhain, Ruth Pegington, Alexander Doust, Richard Owoare
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Publication number: 20190148714Abstract: This invention relates to polymer-based electrodes comprising at least one layer containing: a continuous, solid and porous electroactive polymer material, and liquid electrolyte present in the pores of the electroactive polymer material. As a result of the modified morphology of the polymer layer thin-film charge-storage devices using these polymer-based electrodes exhibit improved charge-storage and current output and enable manufacturing of a gradual continuum between batteries and supercapacitors. In addition, the invention relates to methods of producing the above polymer-based electrodes and thin-film charge-storage devices.Type: ApplicationFiled: June 8, 2017Publication date: May 16, 2019Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Samuel Richardson, Jonathan Pillow
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Patent number: 10290810Abstract: A polymer comprising a repeat unit of formula (I): wherein R1 in each occurrence is independently H or a substituent, and the two groups R1 may be linked to form a ring; R2 in each occurrence is independently a substituent; Ar1 in each occurrence is independently an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; R3 in each occurrence is independently a substituent; each n independently is 0, 1, 2 or 3 with the proviso that at least one n=1; and each m is independently 0 or 1. The polymer may be a light-emitting 103 of an organic light-emitting device.Type: GrantFiled: July 29, 2014Date of Patent: May 14, 2019Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Sophie Barbara Heidenhain, Richard Owoare, Gary Watts, Jonathan Pillow
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Patent number: 10205114Abstract: A composition suitable for use in an organic light-emitting layer (103) of an organic light-emitting device having an anode (101) and a cathode (105), the composition comprising a fluorescent light-emitting material, a first triplet-accepting material and a second triplet-accepting material that is different from the first triplet-accepting material. The fluorescent light-emitting material may be a repeat unit of a light-emitting polymer, and the first and second triplet-accepting materials may independently be repeat units of the light-emitting polymer or may be mixed with the fluorescent light-emitting material.Type: GrantFiled: August 28, 2015Date of Patent: February 12, 2019Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Martina Pintani, Ian Johnson, Francesco Di Stasio, Martin Humphries, Jonathan Pillow, Ruth Pegington, James Morey
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Publication number: 20180358621Abstract: The present invention relates to an organic flow cell battery having a material comprising an organic molecule that can be used as the electroactive redox material for both electrodes of the battery. By enabling two-electron processes both of the oxidation and reduction to occur in a single molecule, a total of 4-electron transitions is achieved, which allows the organic molecule to be used on both sides of the separator, reducing material costs and allowing the battery to be charge in either direction with equal ease.Type: ApplicationFiled: December 23, 2015Publication date: December 13, 2018Applicant: Cambridge Display Technology LimitedInventor: Jonathan Pillow
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Patent number: 10090472Abstract: A method of fractionating a semiconducting polymer wherein the semiconducting polymer comprises polymer chains comprising a defect group, the method comprising the steps of reacting the polymer chains comprising a defect group to form polymer chains comprising separating groups; and separating the polymer chains comprising the separating groups from the semiconducting polymer. The separating group may be a binding group X capable of binding to a solid substrate material 305, for example particulate silica.Type: GrantFiled: December 14, 2015Date of Patent: October 2, 2018Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventor: Jonathan Pillow
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Patent number: 10032984Abstract: A polymer comprising a repeat unit of formula (I): wherein R1 in each occurrence is independently H or a substituent; R2 in each occurrence is independently a substituent; and x is 0, 1, 2 or 3. The polymer may be used as a light-emitting polymer in an organic light-emitting device.Type: GrantFiled: October 20, 2015Date of Patent: July 24, 2018Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Jonathan Pillow, Martin Humphries
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Patent number: 10033019Abstract: A light-emitting composition comprising a mixture of a fluorescent light-emitting material a triplet-accepting copolymer comprising a triplet-accepting repeat unit and a repeat unit of formula (I): wherein A is a divalent group; R1 independently in each occurrence is a substituent; R2 in each occurrence is H or a substituent; and x independently in each occurrence is 0, 1, 2 or 3.Type: GrantFiled: November 26, 2013Date of Patent: July 24, 2018Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Fredrik Jakobsson, Christian Nielsen, Jonathan Pillow, Francesco Distasio, Edward Snedden
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Patent number: 9966534Abstract: A copolymer comprising a repeat unit of Formula (I) and at least one further repeat unit: Formula (I) wherein: wherein: Ar1 and Ar2 are each independently selected from aryl and heteroaryl, each of which is independently unsubstituted or substituted with one or more substituents; each R is independently a substituent; each n is independently 0, 1 or 2; each m is independently 0, 1, 2 or 3, and at least one of the repeat units of the polymer is a partially conjugating repeat unit.Type: GrantFiled: December 23, 2013Date of Patent: May 8, 2018Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Philip Stackhouse, Sophie Barbara Heidenhain, Ruth Pegington, Jonathan Pillow, Martin Humphries, Tomoyasu Yoshida
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Publication number: 20180083332Abstract: A charge storage device and system comprises an anode assembly and a cathode assembly, each of the assemblies comprising a charge storage layer of a conjugated polymer material, wherein the conjugated polymer material of the charge storage layer of the cathode assembly is air stable and non-ionic in its discharged state, and wherein the conjugated polymer material of the charge storage layer of the anode assembly includes is air stable and non-ionic in its discharged state. The polymer materials are fully conjugated along the main chain, and are made by processes that do not involve oxidative or electrochemical polymerisation. The charge storage layers are formed from solutions of these polymers, and are amorphous and continuous.Type: ApplicationFiled: March 21, 2016Publication date: March 22, 2018Applicant: Cambridge Display Technology LimitedInventor: Jonathan Pillow
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Publication number: 20180019400Abstract: A polymer comprising a repeat unit of formula (I): wherein R1 in each occurrence is independently H or a substituent; R2 in each occurrence is independently a substituent; and x is 0, 1, 2 or 3. The polymer may be used as a light-emitting polymer in an organic light-emitting device.Type: ApplicationFiled: October 20, 2015Publication date: January 18, 2018Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Jonathan Pillow, Martin Humphries
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Patent number: 9812647Abstract: Composition which may be useful in an organic light emitting diode, the composition having a fluorescent light-emitting polymer with light-emitting repeat units, and a triplet-accepting unit mixed with the light-emitting polymer.Type: GrantFiled: June 24, 2011Date of Patent: November 7, 2017Assignees: Cambridge Display Technology, Ltd., Sumitomo Chemical Company LimitedInventors: Jonathan Pillow, Matthew Roberts, Martina Pintani, Simon King, Michael Cass
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Publication number: 20170288158Abstract: A combined solar recharging thin-film charge storage device and a method of its manufacture, wherein charge generation and storage are achieved within the same multilayer stack by providing a layer which functions as a photoactive layer and at the same time comprises ions towards which it is ion-permeable and separates physical contact between two electrodes. Accordingly, a simple device structure is provided which may be manufactured easily and cost-efficiently and which allows easy integration with other components.Type: ApplicationFiled: March 31, 2017Publication date: October 5, 2017Applicant: Cambridge Display Technology, Ltd.Inventor: JONATHAN PILLOW
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Publication number: 20170288163Abstract: A composition suitable for use in an organic light-emitting layer (103) of an organic light-emitting device having an anode (101) and a cathode (105), the composition comprising a fluorescent light-emitting material, a first triplet-accepting material and a second triplet-accepting material that is different from the first triplet-accepting material. The fluorescent light-emitting material may be a repeat unit of a light-emitting polymer, and the first and second triplet-accepting materials may independently be repeat units of the light-emitting polymer or may be mixed with the fluorescent light-emitting material.Type: ApplicationFiled: August 28, 2015Publication date: October 5, 2017Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Martina Pintani, Ian Johnson, Francesco Di Stasio, Martin Humphries, Jonathan Pillow, Ruth Pegington, James Morey
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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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Publication number: 20170226652Abstract: This invention relates to a method for fabrication of electrode material in electronic devices by in situ-electrodeposition of metal or metalloid ions that are present in the device. In another aspect, the present invention relates to electronic devices and charge storage devices comprising the electrodes manufactured by said method. Furthermore, the present invention further relates to a method of enhancing charge injection in an electronic device or charge storage device comprising the steps of: pre-assembling an electronic device or charge storage device and subsequently applying an electric field to effect electrodeposition of an electrode layer in situ by reducing the metal or metalloid ions to a non-ionic state.Type: ApplicationFiled: February 2, 2017Publication date: August 10, 2017Applicant: Cambridge Display Technology, Ltd.Inventor: Jonathan Pillow