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).

  • Publication number: 20230005439
    Abstract: 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: Application
    Filed: August 30, 2022
    Publication date: January 5, 2023
    Inventors: 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
  • Publication number: 20220413323
    Abstract: 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: Application
    Filed: August 29, 2022
    Publication date: December 29, 2022
    Inventors: Stephen J. TELFER, Eugene BZOWEJ, Kenneth R. CROUNSE, John L. MARSHALL, Brandon MACDONALD, Ziyan WU, Lee YEZEK
  • Patent number: 11468855
    Abstract: 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: Grant
    Filed: April 27, 2020
    Date of Patent: October 11, 2022
    Assignee: E Ink Corporation
    Inventors: 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
  • Patent number: 11460722
    Abstract: 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: Grant
    Filed: May 6, 2020
    Date of Patent: October 4, 2022
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Eugene Bzowej, Kenneth R. Crounse, John L. Marshall, Brandon Macdonald, Ziyan Wu, Lee Yezek
  • Publication number: 20210247658
    Abstract: 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: Application
    Filed: January 25, 2021
    Publication date: August 12, 2021
    Inventors: Jay William ANSETH, Brandon MACDONALD, Craig Alan BREEN
  • Publication number: 20200355946
    Abstract: 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: Application
    Filed: May 6, 2020
    Publication date: November 12, 2020
    Inventors: Stephen J. TELFER, Eugene BZOWEJ, Kenneth R. CROUNSE, John L. MARSHALL, Brandon MACDONALD, Ziyan WU, Lee YEZEK
  • Publication number: 20200355978
    Abstract: 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: Application
    Filed: May 1, 2020
    Publication date: November 12, 2020
    Inventors: Eugene BZOWEJ, John L. MARSHALL, Stephen J. TELFER, Brandon MACDONALD
  • Publication number: 20200264488
    Abstract: 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: Application
    Filed: April 27, 2020
    Publication date: August 20, 2020
    Inventors: 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
  • Patent number: 10678111
    Abstract: 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: Grant
    Filed: December 26, 2017
    Date of Patent: June 9, 2020
    Assignee: E Ink Corporation
    Inventors: 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
  • Patent number: 10509293
    Abstract: 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: Grant
    Filed: December 26, 2017
    Date of Patent: December 17, 2019
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Stephen Bull, David Darrell Miller, Christopher L. Hoogeboom, Ana L. Lattes, Brandon MacDonald, Kosta Ladavac
  • Patent number: 10495940
    Abstract: 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: Grant
    Filed: December 29, 2017
    Date of Patent: December 3, 2019
    Assignee: E Ink Corporation
    Inventors: George G. Harris, Olga Vladimirovna Barykina-Tassa, Brandon MacDonald
  • Publication number: 20180136533
    Abstract: 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: Application
    Filed: December 26, 2017
    Publication date: May 17, 2018
    Inventors: 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
  • Publication number: 20180136534
    Abstract: 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: Application
    Filed: December 26, 2017
    Publication date: May 17, 2018
    Inventors: Stephen J. Telfer, Stephen Bull, David Darrell Miller, Christopher L. Hoogeboom, Ana L. Lattes, Brandon MacDonald, Kosta Ladavac
  • Publication number: 20180120665
    Abstract: 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: Application
    Filed: December 29, 2017
    Publication date: May 3, 2018
    Inventors: George G. HARRIS, Olga Vladimirovna BARYKINA-TASSA, Brandon MACDONALD
  • Patent number: 9921451
    Abstract: 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: Grant
    Filed: September 10, 2015
    Date of Patent: March 20, 2018
    Assignee: E Ink Corporation
    Inventors: 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
  • Patent number: 9897891
    Abstract: 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: Grant
    Filed: June 29, 2016
    Date of Patent: February 20, 2018
    Assignee: E Ink Corporation
    Inventors: George G. Harris, Olga Vladimirovna Barykina-Tassa, Brandon MacDonald
  • Publication number: 20170003570
    Abstract: 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: Application
    Filed: June 29, 2016
    Publication date: January 5, 2017
    Inventors: George G. Harris, Olga Vladimirovna Barykina-Tassa, Brandon MacDonald
  • Publication number: 20160085132
    Abstract: 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: Application
    Filed: September 10, 2015
    Publication date: March 24, 2016
    Inventors: 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
  • Publication number: 20130280854
    Abstract: 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: Application
    Filed: October 5, 2011
    Publication date: October 24, 2013
    Inventors: Jacek Jasieniak, Brandon MacDonald, Paul Mulvaney