Patents by Inventor Brandon MacDonald
Brandon MacDonald 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: 20230005439Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: ApplicationFiled: August 30, 2022Publication date: January 5, 2023Inventors: Stephen J. TELFER, Stephen BULL, Jennifer M. MORRISON, Luke M. SLOMINSKI, David Darrell MILLER, Olga Vladimirova BARYKINA-TASSA, Christopher L. HOOGEBOOM, Ana L. LATTES, Lee YEZEK, Brandon MACDONALD, Kosta LADAVAC, Craig A. HERB
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COMPOSITE ELECTROPHORETIC PARTICLES HAVING POLYMER SHELLS INCLUDING FIRST AND SECOND MONOMERIC UNITS
Publication number: 20220413323Abstract: An electrophoretic medium includes a fluid, a plurality of light scattering charged particles having a first polarity, and a first, second, and third set of particles, each set having a color different from each other set. The first and second particles may have a second polarity opposite to the first polarity, and the mobility of the third set of particles is less than half of the mobility of the light scattering particles, the first set of charged particles, and the second set of charged particles.Type: ApplicationFiled: August 29, 2022Publication date: December 29, 2022Inventors: Stephen J. TELFER, Eugene BZOWEJ, Kenneth R. CROUNSE, John L. MARSHALL, Brandon MACDONALD, Ziyan WU, Lee YEZEK -
Patent number: 11468855Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: GrantFiled: April 27, 2020Date of Patent: October 11, 2022Assignee: E Ink CorporationInventors: Stephen J. Telfer, Stephen Bull, Jennifer M. Morrison, Luke M. Slominski, David Darrell Miller, Olga Vladimirova Barykina-Tassa, Christopher L. Hoogeboom, Ana L. Lattes, Lee Yezek, Brandon MacDonald, Kosta Ladavac, Craig A. Herb
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Patent number: 11460722Abstract: An electrophoretic medium includes a fluid, a plurality of light scattering charged particles having a first polarity, and a first, second, and third set of particles, each set having a color different from each other set. The first and second particles may have a second polarity opposite to the first polarity, and the mobility of the third set of particles is less than half of the mobility of the light scattering particles, the first set of charged particles, and the second set of charged particles.Type: GrantFiled: May 6, 2020Date of Patent: October 4, 2022Assignee: E Ink CorporationInventors: Stephen J. Telfer, Eugene Bzowej, Kenneth R. Crounse, John L. Marshall, Brandon Macdonald, Ziyan Wu, Lee Yezek
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Publication number: 20210247658Abstract: An electrophoretic medium comprises a plurality of core-shell particles and a non-polar fluid. The core-shell particles comprise an organic pigment particles core and a shell comprising a metal oxide layer and a silane layer. The metal oxide layer may have a thickness of 0.4 to 2 nm. It may be formed using a fluidized bed reactor by inserting the organic pigment into the reactor as a powder bed, contacting the powder bed with a gaseous stream comprising a metal oxide precursor and an inert gas, and contacting the powder bed with a gaseous stream of a reagent and an inert gas. The silane layer is formed from a silane compound comprising a first functional group, wherein the first functional group reacts with the metal oxide.Type: ApplicationFiled: January 25, 2021Publication date: August 12, 2021Inventors: Jay William ANSETH, Brandon MACDONALD, Craig Alan BREEN
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Publication number: 20200355946Abstract: An electrophoretic medium includes a fluid, a plurality of light scattering charged particles having a first polarity, and a first, second, and third set of particles, each set having a color different from each other set. The first and second particles may have a second polarity opposite to the first polarity, and the mobility of the third set of particles is less than half of the mobility of the light scattering particles, the first set of charged particles, and the second set of charged particles.Type: ApplicationFiled: May 6, 2020Publication date: November 12, 2020Inventors: Stephen J. TELFER, Eugene BZOWEJ, Kenneth R. CROUNSE, John L. MARSHALL, Brandon MACDONALD, Ziyan WU, Lee YEZEK
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Publication number: 20200355978Abstract: Mixtures are disclosed containing a plurality of charged pigment particles and a one or more charge control agents. At least one of the charge control agents has a chemical structure that includes a cationic head group, such as an ammonium cation or an iminium compound, and a non-ionic, polar functional group, other than an acyclic secondary amide group. The mixtures are useful as dispersions for forming electrophoretic media that may be incorporated into electrophoretic displays. Alternatively, the dispersions may be useful for forming electrophotographic toners and dispersions for other printing applications.Type: ApplicationFiled: May 1, 2020Publication date: November 12, 2020Inventors: Eugene BZOWEJ, John L. MARSHALL, Stephen J. TELFER, Brandon MACDONALD
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Publication number: 20200264488Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: ApplicationFiled: April 27, 2020Publication date: August 20, 2020Inventors: Stephen J. TELFER, Stephen BULL, Jennifer M. MORRISON, Luke M. SLOMINSKI, David Darrell MILLER, Olga Vladimirova BARYKINA-TASSA, Christopher L. HOOGEBOOM, Ana L. LATTES, Lee YEZEK, Brandon MACDONALD, Kosta LADAVAC, Craig A. HERB
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Patent number: 10678111Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: GrantFiled: December 26, 2017Date of Patent: June 9, 2020Assignee: E Ink CorporationInventors: Stephen J. Telfer, Stephen Bull, Jennifer M. Morrison, Luke M. Slominski, David Darrell Miller, Olga Vladimirova Barykina-Tassa, Christopher L. Hoogeboom, Ana L. Lattes, Lee Yezek, Brandon MacDonald, Kosta Ladavac, Craig A. Herb
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Patent number: 10509293Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: GrantFiled: December 26, 2017Date of Patent: December 17, 2019Assignee: E Ink CorporationInventors: Stephen J. Telfer, Stephen Bull, David Darrell Miller, Christopher L. Hoogeboom, Ana L. Lattes, Brandon MacDonald, Kosta Ladavac
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Patent number: 10495940Abstract: A composite electrophoretic display comprised of multiple, stacked, non-planar electrophoretic displays. The individual electrophoretic displays that form the composite display may be driven separately using different driving signals. The electrical connections for the individual displays may be configured to minimize the impact of the electrical connections on the overall aesthetic of the composite display.Type: GrantFiled: December 29, 2017Date of Patent: December 3, 2019Assignee: E Ink CorporationInventors: George G. Harris, Olga Vladimirovna Barykina-Tassa, Brandon MacDonald
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Publication number: 20180136533Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: ApplicationFiled: December 26, 2017Publication date: May 17, 2018Inventors: Stephen J. Telfer, Stephen Bull, Jennifer M. Morrison, Luke M. Slominski, David Darrell Miller, Olga Vladimirova Barykina-Tassa, Christopher L. Hoogeboom, Ana L. Lattes, Lee Yezek, Brandon MacDonald, Kosta Ladavac, Craig A. Herb
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Publication number: 20180136534Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: ApplicationFiled: December 26, 2017Publication date: May 17, 2018Inventors: Stephen J. Telfer, Stephen Bull, David Darrell Miller, Christopher L. Hoogeboom, Ana L. Lattes, Brandon MacDonald, Kosta Ladavac
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Publication number: 20180120665Abstract: A composite electrophoretic display comprised of multiple, stacked, non-planar electrophoretic displays. The individual electrophoretic displays that form the composite display may be driven separately using different driving signals. The electrical connections for the individual displays may be configured to minimize the impact of the electrical connections on the overall aesthetic of the composite display.Type: ApplicationFiled: December 29, 2017Publication date: May 3, 2018Inventors: George G. HARRIS, Olga Vladimirovna BARYKINA-TASSA, Brandon MACDONALD
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Patent number: 9921451Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: GrantFiled: September 10, 2015Date of Patent: March 20, 2018Assignee: E Ink CorporationInventors: Stephen J. Telfer, Stephen Bull, Jennifer M. Morrison, Luke M. Slominski, David Darrell Miller, Olga Vladimirovna Barykina-Tassa, Lee Yezek, Brandon MaCDonald, Kosta Ladavac, Craig A. Herb
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Patent number: 9897891Abstract: Apparatus and methods for forming a composite electrophoretic display comprised of multiple, stacked electrophoretic displays are described. The individual electrophoretic displays that form the composite display may be driven separately using different driving signals. The electrical connections for the individual displays may be configured to minimize the impact of the electrical connections on the overall aesthetic of the composite display.Type: GrantFiled: June 29, 2016Date of Patent: February 20, 2018Assignee: E Ink CorporationInventors: George G. Harris, Olga Vladimirovna Barykina-Tassa, Brandon MacDonald
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Publication number: 20170003570Abstract: Apparatus and methods for forming a composite electrophoretic display comprised of multiple, stacked electrophoretic displays are described. The individual electrophoretic displays that form the composite display may be driven separately using different driving signals. The electrical connections for the individual displays may be configured to minimize the impact of the electrical connections on the overall aesthetic of the composite display.Type: ApplicationFiled: June 29, 2016Publication date: January 5, 2017Inventors: George G. Harris, Olga Vladimirovna Barykina-Tassa, Brandon MacDonald
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Publication number: 20160085132Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.Type: ApplicationFiled: September 10, 2015Publication date: March 24, 2016Inventors: Stephen J. Telfer, Stephen Bull, Jennifer M. Morrison, Luke M. Slominski, David Darrell Miller, Olga Vladimirovna Barykina-Tassa, Christopher L. Hoogeboom, Ana L. Lattes, Lee Yezek, Brandon MaCDonald, Kosta Ladavac, Craig A. Herb
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Publication number: 20130280854Abstract: A method for the production of an inorganic film on a substrate, the method comprising: (a) depositing a layer of nanoparticles on the substrate by contacting the substrate with a nanoparticle dispersion; (b) treating the deposited layer of nanoparticles to prevent removal of the nanoparticles in subsequent layer depositing steps; (c) depositing a further layer of nanoparticles onto the preceding nanoparticle layer on the substrate; (d) repeating treatment step (b) and deposition step (c) at least one further time; and (e) optionally thermally annealing the multilayer film produced following steps (a) to (d); wherein the method comprises at least one thermal annealing step in which the layer or layers of nanoparticles are thermally annealed.Type: ApplicationFiled: October 5, 2011Publication date: October 24, 2013Inventors: Jacek Jasieniak, Brandon MacDonald, Paul Mulvaney