Patents by Inventor Charles G. Dupuy
Charles G. Dupuy 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: 20240017542Abstract: A method for forming a heterogeneous or gradient dielectric-property element comprises: (a) providing a plurality of solution-based feedstocks, each including an organic matrix, wherein at least one of the feedstocks includes a nanoparticle filler dispersed within the organic matrix, the feedstocks comprising a first ink having a first photosensitive entity and one or more additional feedstocks having other photosensitive entities, the first and subsequent feedstocks having at least one different photosensitization absorption band, such that spectrally discrete exposure results in different degrees of curing; (b) providing an electromagnetic (EM) source configured to polymerize one or more of the feedstocks; (c) depositing the feedstocks in a plurality of layers; and (e) curing at least a portion of the plurality of feedstocks, wherein deposition and subsequent curing results in regions where complex dielectric properties are different within or between at least one of the plurality of layers.Type: ApplicationFiled: April 3, 2023Publication date: January 18, 2024Applicant: Vadient Optics, LLCInventors: George WILLIAMS, Paul John HARMON, Charles G. DUPUY
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Patent number: 11760644Abstract: An aqueous or organic solvent medium for additive manufacturing technologies comprising a nanocrystal comprising a functional group. The nanocrystal material is selected from a metal oxide, fluoride, metallic, carbon-based, semiconducting quantum dot or combinations thereof. The functional group comprises primary amine, carboxylic acid, lactam ring, polyamide polymer chain or group used to attach a similar functional group.Type: GrantFiled: August 9, 2019Date of Patent: September 19, 2023Assignee: VADIENT OPTICS, LLCInventors: Thomas Leonard Allen, Edward Whitney Elliott, III, John Paul Harmon, Chris Weber, Charles G Dupuy
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Patent number: 11618249Abstract: A method of inkjet printing a gradient dielectric element in a deposition and photo-polymerization process. The method comprises: providing a plurality of complex-dielectric-inks that are inkjet printable including a nanocomposite-ink with an organic-matrix and a nanoparticle filler dispersed within. The plurality of complex-dielectric-inks have a first complex-dielectric-ink having a first photoinitiator and a second complex-dielectric-ink with a second photoinitiator. The first and second complex-dielectric-ink have different wavelength selective photo-polymerization absorption bands such that spectrally discrete exposure results in different degrees of polymerization of the first and second complex-dielectric-ink.Type: GrantFiled: April 14, 2016Date of Patent: April 4, 2023Assignee: VADIENT OPTICS, LLCInventors: Charles G. Dupuy, Bradley J Hermens
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Patent number: 11174400Abstract: A method of manufacturing a nanocomposite GRIN optical-element. The method comprises providing a volumetric gradient refractive profile and providing a plurality of nanocomposite-inks to form the GRIN optical-element. Each of the plurality of nanocomposite-inks have nanoparticles dispersed in an organic-matrix. The plurality of nanocomposite-inks comprising of a nanoparticle diffusion inhibiting nanocomposite-ink wherein nanoparticle diffusion is inhibited with respect to another of the plurality of nanocomposite-inks. The diffusion inhibiting nanocomposite-ink having a different dielectric property from at least one of the other plurality of nanocomposite-inks. The plurality of nanocomposite-inks also comprising a nanoparticle diffusion permitting nanocomposite-ink wherein nanoparticle diffusion is permitted with respect to at least another of the plurality of nanocomposite-inks.Type: GrantFiled: September 23, 2015Date of Patent: November 16, 2021Assignee: VADIENT OPTICS, LLCInventors: George Williams, John Paul Harmon, Charles G. Dupuy, Ngoc Thanh Nguyen
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Publication number: 20210039163Abstract: An aqueous or organic solvent medium for additive manufacturing technologies comprising a nanocrystal comprising a functional group. The nanocrystal material is selected from a metal oxide, fluoride, metallic, carbon-based, semiconducting quantum dot or combinations thereof. The functional group comprises primary amine, carboxylic acid, lactam ring, polyamide polymer chain or group used to attach a similar functional group.Type: ApplicationFiled: August 9, 2019Publication date: February 11, 2021Applicant: Vadient Optics, LLCInventors: Thomas Leonard Allen, Edward Whitney Elliott, III, John Paul Harmon, Chris Weber, Charles G Dupuy
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Patent number: 9855752Abstract: Methods of manufacturing a volumetric continuous gradient complex dielectric element with drop-on-demand techniques, such as inkjet printing, by calculating spatial placement of nanocomposite-ink droplets are disclosed. The methods comprise determining or having a multi-dimensional gradient profile representing a volumetric gradient complex dielectric element. Providing or having a plurality of nanocomposite-inks, at least one of the nanocomposite-inks having a curable organic-matrix and a concentration of nanoparticles dispersed within to print the volumetric continuous gradient complex dielectric device. A print mask is determined in one-, two-, or three-dimensions that reconstructs the multi-dimensional gradient profile as a discretized pattern based on the material properties of the plurality of nanocomposite-inks and properties of a printing apparatus with a plurality of printheads.Type: GrantFiled: December 16, 2016Date of Patent: January 2, 2018Assignee: Vadient Optics, LLCInventors: George Williams, John Paul Harmon, Charles G. Dupuy, Ngoc Thanh Nguyen, Sang-ki Park, Bradley J. Hermens
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Publication number: 20170297953Abstract: A method of inkjet printing a gradient dielectric element in a deposition and photo-polymerization process. The method comprises: providing a plurality of complex-dielectric-inks that are inkjet printable including a nanocomposite-ink with an organic-matrix and a nanoparticle filler dispersed within. The plurality of complex-dielectric-inks have a first complex-dielectric-ink having a first photoinitiator and a second complex-dielectric-ink with a second photoinitiator. The first and second complex-dielectric-ink have different wavelength selective photo-polymerization absorption bands such that spectrally discrete exposure results in different degrees of polymerization of the first and second complex-dielectric-ink.Type: ApplicationFiled: April 14, 2016Publication date: October 19, 2017Applicant: Vadient Optics, LLC.Inventors: Charles G. Dupuy, Bradley J. Hermens
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Patent number: 9771490Abstract: Optical inks suitable for 3D printing fabrication of gradient refractive index (GRIN) optical components are composed a monomer matrix material doped with ligand-functionalized nanoparticles, wherein the monomer has a viscosity less than 20 cPoise and is UV curable to form a solid polymer. The matrix material doped with the ligand-functionalized nanoparticles has a transmittance of at least 90% in a predetermined optical wavelength range, wherein the ligand functionalized nanoparticles have a size less than 100 nm, are loaded in the monomer matrix material at a volume percent of at least 2%, and alter an index of refraction of the monomer matrix by at least 0.02. The ligand-functionalized nanoparticles have a plurality of ligands attached to a nanoparticle core surface with an anchor functional group and terminated with a buoy functional group that are reactive, non-reactive, or combinations thereof. In some embodiments the ligands have a length less than 1.Type: GrantFiled: August 18, 2016Date of Patent: September 26, 2017Assignee: Vadient Optics, LLCInventors: Christopher D Weber, Charles G. Dupuy, John Paul Harmon, David M. Schut
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Publication number: 20170173957Abstract: Methods of manufacturing a volumetric continuous gradient complex dielectric element with drop-on-demand techniques, such as inkjet printing, by calculating spatial placement of nanocomposite-ink droplets are disclosed. The methods comprise determining or having a multi-dimensional gradient profile representing a volumetric gradient complex dielectric element. Providing or having a plurality of nanocomposite-inks, at least one of the nanocomposite-inks having a curable organic-matrix and a concentration of nanoparticles dispersed within to print the volumetric continuous gradient complex dielectric device. A print mask is determined in one-, two-, or three-dimensions that reconstructs the multi-dimensional gradient profile as a discretized pattern based on the material properties of the plurality of nanocomposite-inks and properties of a printing apparatus with a plurality of printheads.Type: ApplicationFiled: December 16, 2016Publication date: June 22, 2017Applicant: Vadient Optics, LLC.Inventors: George WILLIAMS, John Paul HARMON, Charles G. DUPUY, Ngoc Thanh NGUYEN, Sang-ki PARK, Bradley J. HERMENS
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Publication number: 20170080459Abstract: A method of manufacturing a nanocomposite GRIN optical-element. The method comprises providing a volumetric gradient refractive profile and providing a plurality of nanocomposite-inks to form the GRIN optical-element. Each of the plurality of nanocomposite-inks have nanoparticles dispersed in an organic-matrix. The plurality of nanocomposite-inks comprising of a nanoparticle diffusion inhibiting nanocomposite-ink wherein nanoparticle diffusion is inhibited with respect to another of the plurality of nanocomposite-inks. The diffusion inhibiting nanocomposite-ink having a different dielectric property from at least one of the other plurality of nanocomposite-inks. The plurality of nanocomposite-inks also comprising a nanoparticle diffusion permitting nanocomposite-ink wherein nanoparticle diffusion is permitted with respect to at least another of the plurality of nanocomposite-inks.Type: ApplicationFiled: September 23, 2015Publication date: March 23, 2017Applicant: Vadient, LLC.Inventors: George Williams, John Paul Harmon, Charles G. Dupuy, Ngoc Thanh Nguyen
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Publication number: 20170029643Abstract: Optical inks suitable for 3D printing fabrication of gradient refractive index (GRIN) optical components are composed a monomer matrix material doped with ligand-functionalized nanoparticles, wherein the monomer has a viscosity less than 20 cPoise and is UV curable to form a solid polymer. The matrix material doped with the ligand-functionalized nanoparticles has a transmittance of at least 90% in a predetermined optical wavelength range, wherein the ligand functionalized nanoparticles have a size less than 100 nm, are loaded in the monomer matrix material at a volume percent of at least 2%, and alter an index of refraction of the monomer matrix by at least 0.02. The ligand-functionalized nanoparticles have a plurality of ligands attached to a nanoparticle core surface with an anchor functional group and terminated with a buoy functional group that are reactive, non-reactive, or combinations thereof. In some embodiments the ligands have a length less than 1.Type: ApplicationFiled: August 18, 2016Publication date: February 2, 2017Applicant: Vadient Optics, LLC.Inventors: Christopher D. Weber, Charles G. Dupuy, John Paul Harmon, David M. Schut
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Patent number: 9555623Abstract: Methods of manufacturing a volumetric continuous gradient complex dielectric element with drop-on-demand techniques, such as inkjet printing, by calculating spatial placement of nanocomposite-ink droplets are disclosed. The methods comprise determining or having a multi-dimensional gradient profile representing a volumetric gradient complex dielectric element. Providing or having a plurality of nanocomposite-inks, at least one of the nanocomposite-inks having a curable organic-matrix and a concentration of nanoparticles dispersed within to print the volumetric continuous gradient complex dielectric device. A print mask is determined in one-, two-, or three-dimensions that reconstructs the multi-dimensional gradient profile as a discretized pattern based on the material properties of the plurality of nanocomposite-inks and properties of a printing apparatus.Type: GrantFiled: December 17, 2015Date of Patent: January 31, 2017Assignee: Vadient Optics, LLC.Inventors: George Williams, John Paul Harmon, Charles G. Dupuy, Ngoc Thanh Nguyen, Sang-ki Park, Bradley J. Hermens
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Patent number: 9447299Abstract: Optical inks suitable for 3D printing fabrication of gradient refractive index (GRIN) optical components are composed of a monomer matrix material [100] in which ligand-functionalized nanoparticles [102] are well dispersed at more than 2% loading to induce a change in the index of refraction of the matrix of at least 0.02. The ligands are less than 1.2 nm in length and are covalently bonded to both the nanoparticles and the monomer matrix. The nanoparticles are less than 100 nm in size and the doped matrix material has a transmittance of at least 90% at wavelengths of interest. The matrix material has less than 20 cPoise viscosity and is UV crosslinkable to form a cured polymer.Type: GrantFiled: May 2, 2014Date of Patent: September 20, 2016Assignee: Voxtel, IncInventors: David M. Schut, Charles G. Dupuy, John Paul Harmon
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Publication number: 20160108267Abstract: Optical inks suitable for 3D printing fabrication of gradient refractive index (GRIN) optical components are composed of a monomer matrix material [100] in which ligand-functionalized nanoparticles [102] are well dispersed at more than 2% loading to induce a change in the index of refraction of the matrix of at least 0.02. The ligands are less than 1.2 nm in length and are covalently bonded to both the nanoparticles and the monomer matrix. The nanoparticles are less than 100 nm in size and the doped matrix material has a transmittance of at least 90% at wavelengths of interest. The matrix material has less than 20 cPoise viscosity and is UV crosslinkable to form a cured polymer.Type: ApplicationFiled: May 2, 2014Publication date: April 21, 2016Applicant: VADIENT OPTICS, LLC.Inventors: David M. Schut, Charles G. Dupuy, John Paul Harmon
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Patent number: 8724214Abstract: An optical upconverting nanomaterial includes a nanocrystal, a ligand layer directly bonded to the nanocrystal, and an optical antenna directly or indirectly bonded to the nanocrystal. The nanocrystal includes a transition metal-doped material exhibiting upconversion to optical wavelengths. The transition metal-doped material includes energy transfer facilitating transition metal dopants and (not necessarily distinct) emitter transition metal dopants, where an absorption spectrum of the energy transfer facilitating transition metal dopants overlaps with an emission spectrum of the optical antenna. The optical upconverting nanomaterial has at least one linear dimension (e.g., width or thickness) that is less than 150 nm in extent.Type: GrantFiled: September 7, 2012Date of Patent: May 13, 2014Assignee: Voxtel, Inc.Inventors: David M. Schut, Charles G. Dupuy, George M. Williams, Thomas L. Allen
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Publication number: 20140071517Abstract: An optical upconverting nanomaterial includes a nanocrystal, a ligand layer directly bonded to the nanocrystal, and an optical antenna directly or indirectly bonded to the nanocrystal. The nanocrystal includes a transition metal-doped material exhibiting upconversion to optical wavelengths. The transition metal-doped material includes energy transfer facilitating transition metal dopants and (not necessarily distinct) emitter transition metal dopants, where an absorption spectrum of the energy transfer facilitating transition metal dopants overlaps with an emission spectrum of the optical antenna. The optical upconverting nanomaterial has at least one linear dimension (e.g., width or thickness) that is less than 150 nm in extent.Type: ApplicationFiled: September 7, 2012Publication date: March 13, 2014Inventors: David M. Schut, Charles G. Dupuy, George M. Williams, Thomas L. Allen
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Publication number: 20100090936Abstract: Devices, systems, mediums, and methods for providing a layered color display are disclosed. One method of displaying images includes configuring a reflective color display in a layered manner to display a first portion of an image in a lower layer and to display a second portion of an image in a number of upper layers by decoupling imaging functions of a number of upper layers of a reflective color display device from imaging functions of a lower layer of a reflective color device, driving the lower layer with an active matrix back plane thin film transistor (TFT), and addressing the number of upper layers passively.Type: ApplicationFiled: October 14, 2008Publication date: April 15, 2010Inventors: Charles G. Dupuy, William A. Fischer, Joseph W. Stellbrink, Peter J. Fricke
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Publication number: 20100091229Abstract: Compositions, devices, and methods are provided for a switchable alignment layer coated on a substrate for a liquid crystal device comprising an attachment layer and an adjustable side-chain, where an electric field is capable of changing orientation of the adjustable side-chain between a first state and a second state.Type: ApplicationFiled: October 14, 2008Publication date: April 15, 2010Inventors: Qin Liu, Stephen C. Kitson, Jeffrey T. Mabeck, Charles G. Dupuy
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Publication number: 20080164310Abstract: A labeling system includes at least one display device associated with one or more particular locations within a space and a device associated with the at least one display device that identifies that display device or a portion thereof with a particular location in the space.Type: ApplicationFiled: January 9, 2007Publication date: July 10, 2008Inventors: Charles G. Dupuy, Alan R. Arthur, Kurt Cleveland, Gregory J. May
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Patent number: 7188943Abstract: An ink set for inkjet printing includes a cyan ink having a first lightness value, a magenta ink having a second lightness value, and a blue ink having a third lightness value, wherein the cyan ink and the magenta ink mix to form a composite blue having a fourth lightness value, wherein the fourth lightness value is approximately twice the third lightness value.Type: GrantFiled: July 14, 2004Date of Patent: March 13, 2007Assignee: Hewlett-Packard Development Company, LP.Inventors: Jay S Gondek, Charles G. Dupuy, Alexey S Kabalnov, Matthew A. Shepherd