Patents by Inventor Kishori Deshpande
Kishori Deshpande 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: 11121190Abstract: Provided is an optoelectronic device comprising an optoelectronic element and circuitry connected to the optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching the optoelectronic element between a configuration in which the circuitry provides an effective forward bias voltage that causes the optoelectronic element to emit light and a configuration in which the circuitry provides an effective reverse bias voltage that causes the optoelectronic element to be capable of generating a photocurrent when light to which the optoelectronic element is sensitive strikes the optoelectronic element.Type: GrantFiled: March 23, 2017Date of Patent: September 14, 2021Assignees: Dow Global Technologies LLC, Rohm and Haas Company, The Board of Trustees of the University of Illinois, Rohm and Haas Electronic Materials LLCInventors: Peter Trefonas, III, Kishori Deshpande, Trevor Ewers, Edward Greer, Jaebum Joo, Bong Hoon Kim, Nuri Oh, Jong Keun Park, Moonsub Shim, Jieqian Zhang
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Patent number: 10949026Abstract: Provided is a method of creating an image on an array of optoelectronic elements comprising (a) providing a device comprising an array of optoelectronic elements and circuitry connected to each optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching each optoelectronic element independently between an effective forward bias configuration and a reverse-bias configuration, (b) imposing an effective reverse bias on two or more of the optoelectronic elements, (c) providing circuitry that will detect the onset of photocurrent from an individual effective reverse biased optoelectronic element and that will respond to the photocurrent by changing the bias on the individual optoelectronic element to an effective forward bias.Type: GrantFiled: March 23, 2017Date of Patent: March 16, 2021Assignees: Dow Global Technologies LLC, Rohm and Haas Company, The Board of Trustees of the University of Illinois, Rohm and Haas Electronic Materials LLCInventors: Peter Trefonas, III, Seongyong Cho, Kishori Deshpande, Trevor Ewers, Jaebum Joo, Edward Greer, Bong Hoon Kim, Nuri Oh, Jong Keun Park, Moonsub Shim, Jieqian Zhang
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Publication number: 20210005668Abstract: Provided is a device comprising a light-emitting optoelectronic element and a photocurrent-generating optoelectronic element, wherein the device further comprises an opaque element that prevents light emitted by the light-emitting optoelectronic element from reaching the photocurrent-generating optoelectronic element via a pathway within the device.Type: ApplicationFiled: March 23, 2017Publication date: January 7, 2021Inventors: Peter Trefonas, III, Seongyong Cho, Kishori Deshpande, Trevor Ewers, Edward Greer, Jaebum Joo, Nuri Oh, Jong Keun Park, Moonsub Shim, Jieqian Zhang
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Patent number: 10859521Abstract: The present disclosure provides a method of measuring a percent solids content (PSC) of solids by mass in a slurry catalyst composition, where the solids include a catalyst. The method includes obtaining a first time domain (TD) 1H-nuclear magnetic resonance (NMR) spectrum using a time domain (TD)-NMR spectrometer and a test sample of the slurry catalyst composition from which a value of a voltage signal (a) that represents the slurry catalyst composition is determined. A second TD 1H-NMR spectrum using the TD NMR spectrometer is obtained for a neat sample of the suspension liquid for the solids of the slurry catalyst composition, where a value of a voltage signal (b) from the second TD 1H-NMR spectrum that represents the suspension liquid for the solids of the slurry catalyst composition is determined.Type: GrantFiled: November 15, 2017Date of Patent: December 8, 2020Assignee: Univation Technologies, LLCInventors: Kishori Deshpande, Gian C. Gobbi, Nathan Rau
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Patent number: 10510924Abstract: Disclosed herein is a semiconducting nanoparticle comprising a one-dimensional semiconducting nanoparticle having a first end and a second end; where the second end is opposed to the first end; and two first endcaps, one of which contacts the first end and the other of which contacts the second end respectively of the one-dimensional semiconducting nanoparticle; where the first endcap that contacts the first end comprises a first semiconductor and where the first endcap extends from the first end of the one-dimensional semiconducting nanoparticle to form a first nanocrystal heterojunction; where the first endcap that contacts the second end comprises a second semiconductor; where the first endcap extends from the second end of the one-dimensional semiconducting nanoparticle to form a second nanocrystal heterojunction; and where the first semiconductor and the second semiconductor are chemically different from each other.Type: GrantFiled: January 16, 2015Date of Patent: December 17, 2019Assignees: The Board of Trustees of the University of Illinois, Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLCInventors: Moonsub Shim, Nuri Oh, You Zhai, Sooji Nam, Peter Trefonas, III, Kishori Deshpande, Jake Joo
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Publication number: 20190360952Abstract: The present disclosure provides a method of measuring a percent solids content (PSC) of solids by mass in a slurry catalyst composition, where the solids include a catalyst. The method includes obtaining a first time domain (TD) 1H-nuclear magnetic resonance (NMR) spectrum using a time domain (TD)-NMR spectrometer and a test sample of the slurry catalyst composition from which a value of a voltage signal (a) that represents the slurry catalyst composition is determined. A second TD 1H-NMR spectrum using the TD NMR spectrometer is obtained for a neat sample of the suspension liquid for the solids of the slurry catalyst composition, where a value of a voltage signal (b) from the second TD 1H-NMR spectrum that represents the suspension liquid for the solids of the slurry catalyst composition is determined.Type: ApplicationFiled: November 15, 2017Publication date: November 28, 2019Applicant: Univation Technologies, LLCInventors: Kishori Deshpande, Gian C. Gobbi, Nathan Rau
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Publication number: 20190172878Abstract: Provided is an optoelectronic device comprising an optoelectronic element and circuitry connected to the optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching the optoelectronic element between a configuration in which the circuitry provides an effective forward bias voltage that causes the optoelectronic element to emit light and a configuration in which the circuitry provides an effective reverse bias voltage that causes the optoelectronic element to be capable of generating a photocurrent when light to which the optoelectronic element is sensitive strikes the optoelectronic element.Type: ApplicationFiled: March 23, 2017Publication date: June 6, 2019Inventors: Peter Trefonas, III, Kishori Deshpande, Trevor Ewers, Edward Greer, Jaebum Joo, Bong Hoon Kim, Nuri Oh, Jong Keun Park, Moonsub Shim, Jieqian Zhang
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Publication number: 20190114032Abstract: Provided is a method of creating an image on an array of optoelectronic elements comprising (a) providing a device comprising an array of optoelectronic elements and circuitry connected to each optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching each optoelectronic element independently between an effective forward bias configuration and a reverse-bias configuration, (b) imposing an effective reverse bias on two or more of the optoelectronic elements, (c) providing circuitry that will detect the onset of photocurrent from an individual effective reverse biased optoelectronic element and that will respond to the photocurrent by changing the bias on the individual optoelectronic element to an effective forward bias.Type: ApplicationFiled: March 23, 2017Publication date: April 18, 2019Inventors: Peter Trefonas, III, Seongyong Cho, Kishori Deshpande, Trevor Ewers, Jaebum Joo, Edward Greer, Bong Hoon Kim, Nuri Oh, Jong Keun Park, Moonsub Shim, Jieqian Zhang
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Publication number: 20190109290Abstract: Provided is a method of detecting the presence of an object in proximity to an optoelectronic device comprising (a) providing an optoelectronic device comprising a light-emitting optoelectronic element and a photocurrent-generating optoelectronic element, (b) imposing an effective forward bias voltage on the light-emitting optoelectronic element and an effective reverse bias voltage on the photocurrent-generating optoelectronic element, (c) bringing an object capable of scattering or reflecting light or a combination thereof to a distance of 0.1 to 5 mm from a point on the surface of the optoelectronic device from which light emerges, causing light that is emitted by the light-emitting optoelectronic element to be reflected or scattered so that the light falls upon the photocurrent-generating optoelectronic element.Type: ApplicationFiled: March 23, 2017Publication date: April 11, 2019Applicants: Dow Global Technologies LLC, Rohm And Haas Company, The Board of Trustees of the University of Illinois, Rohm and Haas Electronic MaterialsInventors: Peter Trefonas, III, Kishori Deshpande, Trevor Ewers, Edward Greer, Jaebum Joo, Bong Hoon Kim, Nuri Oh, John Rogers, Moonsub Shim, Jieqian Zhang
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Publication number: 20180273844Abstract: Methods and systems for producing nanostructure materials are provided. In one aspect, a process is provided that comprises a) heating one or more nanostructure material reagents by 100° C. or more within 5 seconds or less; and b) reacting the nanostructure material reagents to form a nanostructure material reaction product. In a further aspect, a process is provided comprising a) flowing a fluid composition comprising one or more nanostructure material reagents through a reactor system; and b) reacting the nanostructure material reagents to form a nanostructure material reaction product comprising Cd, In or Zn. In a yet further aspect, methods are provided that include flowing one or more nanostructure material reagents through a first reaction unit; cooling the one or more nanostructure material reagents or reaction product thereof that have flowed through the first reaction unit; and flowing the cooled one or more nanostructure material reagents or reaction product thereof through a second reaction unit.Type: ApplicationFiled: February 13, 2016Publication date: September 27, 2018Inventors: Kishori Deshpande, Peter Trefonas, III, Jieqian Zhang, Vivek Kumar, Nuri Oh, Andy You Zhai, Paul Kenis, Moonsub Shim
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Patent number: 9927556Abstract: In one aspect, structures are provided that comprise (a) a one-dimensional periodic plurality of layers, wherein at least two of the layers have a refractive index differential sufficient to provide effective contrast; and (b) one or more light-emitting nanostructure materials effectively positioned with respect to the refractive index differential interface, wherein the structure provides a polarized output emission.Type: GrantFiled: March 10, 2016Date of Patent: March 27, 2018Assignees: The Board of Trustees of the University of Illinois, Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLCInventors: Brian Cunningham, Gloria G. See, Peter Trefonas, III, Jieqian Zhang, Jong Keun Park, Kevin Howard, Kishori Deshpande, Trevor Ewers
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Publication number: 20170192129Abstract: In one aspect, structures are provided that comprise a photonic crystal comprising a dielectric layer comprising therein one or more light-emitting nanostructure materials. In a further aspect, structures are provided that comprise a dielectric layer comprising first and second sets of light-emitting nanostructure materials at differing depths within the dielectric layer.Type: ApplicationFiled: December 29, 2016Publication date: July 6, 2017Inventors: Brian Cunningham, Gloria G. See, Peter Trefonas, III, Jieqian Zhang, Jong Keun Park, Kevin Howard, Kishori Deshpande, Trevor Ewers
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Patent number: 9580397Abstract: A process for preparing a divinylarene dioxide including the steps of: (a) feeding one or more feed streams of the following reactants into a reactor system: (i) at least one divinylarene, (ii) at least one oxidizing agent, and (iii) at least one solvent to form a reaction mixture in the reactor system; (b) continuously reacting together the one or more feed streams of the reactants of step (a) in the reaction mixture; and (c) controlling heat removal of the reaction mixture as the reactants of step (b) react together; wherein the heat removal is sufficient to provide a residence time of the reactants in the reaction mixture of less than about 180 minutes residence time of the reactants in the reaction step (b); and an apparatus for preparing a divinylarene dioxide.Type: GrantFiled: June 3, 2014Date of Patent: February 28, 2017Assignee: BLUE CUBE IP LLCInventors: Kishori Deshpande, David Jean, Jianping Zeng, Ravindra S. Dixit, David H. West
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Publication number: 20170045643Abstract: In one aspect, structures are provided that comprise (a) a one-dimensional periodic plurality of layers, wherein at least two of the layers have a refractive index differential sufficient to provide effective contrast; and (b) one or more light-emitting nanostructure materials effectively positioned with respect to the refractive index differential interface, wherein the structure provides a polarized output emission.Type: ApplicationFiled: March 10, 2016Publication date: February 16, 2017Inventors: Brian Cunningham, Gloria G. See, Peter Trefonas, III, Jieqian Zhang, Jong Keun Park, Kevin Howard, Kishori Deshpande, Trevor Ewers
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Publication number: 20160365478Abstract: In one aspect, methods are provided for fabrication of multiple layers of a nanostructure material composite, and devices produced by such methods. In another aspect, methods are provided that include use of an overcoating fluoro-containing layer that can facilitate transfer of a nanostructure material layer, and devices produced by such methods.Type: ApplicationFiled: December 19, 2014Publication date: December 15, 2016Inventors: Moonsub Shim, Nuri Oh, You Zhai, Sooji Nam, John A. Rogers, Bong Hoon Kim, Sang Y. Yang, Peter Trefonas, III, Kishori Deshpande, Jaebum Joo, Jieqian J. Zhang, Jong Keun Park
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Patent number: 9478713Abstract: In one aspect, structures are provided comprising: a substrate having a first surface and a second surface; and a polymeric layer disposed on the first surface of the substrate, the polymeric layer comprising a polymer and a plurality of light-emitting nanocrystals; the polymeric layer having a patterned surface, the patterned surface having a patterned first region having a first plurality of recesses and a patterned second region having a second plurality of recesses, wherein the plurality of recesses in each region has a first periodicity in a first direction, and a second periodicity in a second direction which intersects the first direction, wherein the first periodicity of the first region is different from the first periodicity of the second region.Type: GrantFiled: May 27, 2015Date of Patent: October 25, 2016Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC, The Board of Trustees of the University of IllinoisInventors: Brian T. Cunningham, Gloria G. See, Peter Trefonas, Jong Keun Park, Kishori Deshpande, Jieqian Zhang, Jaebum Joo
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Patent number: 9464224Abstract: A transformative wavelength conversion medium is provided, comprising: a phosphor; and, a curable liquid component, wherein the curable liquid component, comprises: an aliphatic resin component, wherein the aliphatic resin component has an average of two epoxide groups per molecule; and, a curing agent; wherein the curable liquid component contains less than 0.5 wt % of monoepoxide molecules (based on the total weight of the aliphatic resin component); and, wherein the curable liquid component is a liquid at 25° C. and atmospheric pressure; and, wherein the phosphor is dispersed in the curable liquid component.Type: GrantFiled: November 21, 2014Date of Patent: October 11, 2016Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLCInventors: Kishori Deshpande, Robert E. Hefner, Jr., Peter Trefonas, Maurice J. Marks, Jong Keun Park, Jieqian Zhang
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Publication number: 20160225946Abstract: Disclosed herein is a semiconducting nanoparticle comprising a one-dimensional semiconducting nanoparticle having a first end and a second end; where the second end is opposed to the first end; a first node that comprises a first semiconductor; where the first node contacts a radial surface of the one-dimensional semiconducting nanoparticle producing a first heterojunction at the point of contact; and a second node that comprises a second semiconductor; where the second node contacts the radial surface of the one-dimensional semiconducting nanoparticle producing a second heterojunction at the point of contact; where the first heterojunction is compositionally different from the second heterojunction.Type: ApplicationFiled: August 31, 2015Publication date: August 4, 2016Inventors: Moonsub Shim, Nuri Oh, You Zhai, Sooji Nam, Peter Trefonas, III, Kishori Deshpande, Jake Joo
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Patent number: 9388254Abstract: The invention provides a polymerization process comprising polymerizing a reaction mixture comprising one or more monomer types, at least one catalyst, and at least one solvent, to form a polymer dispersion, and wherein the at least one catalyst is soluble in the at least one solvent, and wherein the polymer forms a dispersed phase in the solvent, and wherein the at least one solvent is a hydrocarbon. The invention provides a composition comprising an ethylene-based polymer comprising at least the following properties: a) a weight average molecular weight (Mw(abs)) greater than, or equal to, 60,000 g/mole; and b) a molecular weight distribution (Mw(abs)/Mn(abs)) greater than, or equal to, 2.3.Type: GrantFiled: December 21, 2011Date of Patent: July 12, 2016Assignee: Dow Global Technologies LLCInventors: Kishori Deshpande, Ravindra S. Dixit, Pradeep Jain
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Patent number: 9382472Abstract: A transformative wavelength conversion medium is provided, comprising: a phosphor; and, a curable liquid component, wherein the curable liquid component, comprises: an aliphatic resin component, wherein the aliphatic resin component has an average of at least two epoxide groups per molecule; and, a curing agent; wherein the curable liquid component contains less than 0.5 wt % of monoepoxide molecules (based on the total weight of the aliphatic resin component); wherein the curable liquid component contains 1 to 90 wt % of polyepoxide molecules containing at least three epoxide groups per molecule (based on the total weight of the aliphatic resin component); and, wherein the curable liquid component is a liquid at 25° C. and atmospheric pressure; wherein the phosphor is dispersed in the curable liquid component.Type: GrantFiled: November 21, 2014Date of Patent: July 5, 2016Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLCInventors: Robert E. Hefner, Jr., Kishori Deshpande, Maurice J. Marks, Peter Trefonas, Jong Keun Park, Jieqian Zhang