Patents by Inventor Richard M. Webber

Richard M. Webber 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).

  • Patent number: 7535624
    Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: May 19, 2009
    Assignee: E Ink Corporation
    Inventors: Karl R. Amundson, Robert W. Zehner, Richard M. Webber, Katherine Geramita, Libing Zhang, Andrew L. Loxley, Gregg M. Duthaler, John E. Ritter, Michael L. Steiner, Mavyn M. Holman, Justin J. Abramson, Glen Crossley
  • Publication number: 20090046082
    Abstract: The performance of electro-wetting displays can be improved by: (a) providing a concealment member (112) which conceals the moving fluid (108) when that fluid (108) is confined to a small area; (b) using the moving fluid to cover one or more sections of a filter or reflector having differently-colored sections; (c) moving the moving fluid between the rear surface and a side surface of a microcell; (d) using as a substrate for a moving fluid a substrate resistant to wetting by the fluid but pierced by multiple conductive vias capped with a material wetted by the fluid; and (e) coloring the moving fluid with pigments or nanoparticles.
    Type: Application
    Filed: August 31, 2008
    Publication date: February 19, 2009
    Applicant: E INK CORPORATION
    Inventors: Joseph M. Jacobson, Thomas H. Whitesides, Michael D. McCreary, Richard J. Paolini, JR., Richard M. Webber
  • Publication number: 20080266245
    Abstract: An electrophoretic medium has walls defining a microcavity containing an internal phase. This internal phase comprises electrophoretic particles suspended in a suspending fluid and capable of moving therethrough upon application of an electric field to the electrophoretic medium. The average height of the microcavity differs by not more than about 5 ?m from the saturated particle thickness of the electrophoretic particle divided by the volume fraction of the electrophoretic particles in the internal phase.
    Type: Application
    Filed: May 15, 2008
    Publication date: October 30, 2008
    Applicant: E INK CORPORATION
    Inventors: Russell J. Wilcox, Lan Cao, Guy M. Danner, Richard J. Paolini, Richard M. Webber
  • Patent number: 7339715
    Abstract: A coating of an encapsulated electrophoretic medium is formed on a substrate (106) by dispersing in a fluid (104) a plurality of electrophoretic capsules (102), contacting at least a portion of a substrate (106) with the fluid (104); and applying a potential difference between at least a part of the portion of the substrate (106) contacting the fluid (104) and a counter-electrode (110) in electrical contact with the fluid (104), thereby causing capsules (102) to be deposited upon at least part of the portion of the substrate (106) contacting the fluid (102). Patterned coatings of capsules containing different colors may be deposited in registration with electrodes using multiple capsule deposition steps. Alternatively, a patterned coating may be deposited upon a substrate containing a conductive layer by varying the conductivity of the conductive layer by radiation exposure or by coating portions of the conductive layer with an insulating layer, typically a photoresist.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: March 4, 2008
    Assignee: E Ink Corporation
    Inventors: Richard M. Webber, Thomas H. Whitesides, Guy M. Danner, Craig A. Herb, Charles H. Honeyman, Michael McCreary
  • Patent number: 7206119
    Abstract: Electro-optic displays contain a plurality of types of electro-optic media within a single layer. One form of display has separate areas which undergo different color changes so that the display can blink the same image in different colors. A second form of display has areas which switch at different rates so that images can appear transiently. A third form of display has a medium comprising multiple types of electro-optic elements having differing color states and switching speeds to allow display of a wide color gamut.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: April 17, 2007
    Assignee: E Ink Corporation
    Inventors: Charles Howie Honeyman, Richard J. Paolini, Jr., Michael L. Steiner, Thomas H. Whitesides, Andrew Y. Oleson, Richard M. Webber
  • Patent number: 7170670
    Abstract: An electrophoretic medium comprises a plurality of particles suspended in a suspending fluid, the particles being capable of moving through the fluid upon application of an electric field to the medium, the fluid having dissolved or dispersed therein a polymer having a number average molecular weight in excess of about 20,000, the polymer being essentially non-absorbing on the particles. The polymer improves the bistability of the display (i.e., the period for which a written image persist without the display being refreshed) but does not greatly increase the viscosity of the suspending fluid, thus keeping the switching time of the display within reasonable limits. The medium may be encapsulated, or may be in the form a polymer-dispersed electrophoretic medium.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: January 30, 2007
    Assignee: E Ink Corporation
    Inventor: Richard M. Webber
  • Patent number: 7110163
    Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: September 19, 2006
    Assignee: E Ink Corporation
    Inventors: Richard M. Webber, Joseph M. Jacobson, Gregg M. Duthaler, Karl R. Amundson, Jonathan D. Albert, Andrew L. Loxley, Mavyn M. Holman, Glen Crossley, Katharine Geramita
  • Publication number: 20040262237
    Abstract: This invention relates to a process for separating particulates from a low dielectric fluid containing such particulates, the process comprising: contacting the particulates with an acidic organic compound, a metal salt of an acidic organic compound, a basic organic compound, or a mixture of two or more thereof; applying an electric field to the low dielectric fluid; forming a particulates-lean phase and a particulates-rich phase in the dielectric fluid; and separating the particulates-lean phase from the particulates-rich phase. This process is particularly suitable for separating particulates from the lubricating oil of an internal combustion during the operation of the engine.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 30, 2004
    Inventors: Ralph E. Kornbrekke, Richard M. Webber
  • Publication number: 20040252360
    Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.
    Type: Application
    Filed: February 10, 2004
    Publication date: December 16, 2004
    Applicant: E INK CORPORATION
    Inventors: Richard M. Webber, Joseph M. Jacobson, Gregg M. Duthaler, Karl R. Amundson, Jonathan D. Albert, Andrew L. Loxley, Mavyn M. Holman, Glenn Crossley, Katharine Geramita
  • Patent number: 6831769
    Abstract: An electro-optic display comprises first and second substrates and a lamination adhesive layer and a layer of a solid electro-optic material disposed between the first and second substrates, the lamination adhesive layer having a volume resistivity, measured at 10° C., which does not change by a factor of more than about 3 after being held at 25° C. and 45 percent relative humidity for 1000 hours. The electro-optic material is preferably an encapsulated electrophoretic material. Other desirable characteristics of lamination adhesives for use in electro-optic displays are also described.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: December 14, 2004
    Assignee: E Ink Corporation
    Inventors: Mavyn M. Holman, Justin Abramson, Glen Crossley, Katharine Geramita, Robert W. Zehner, Karl R. Amundson, Libing Zhang, Richard M. Webber
  • Publication number: 20040226820
    Abstract: A coating of an encapsulated electrophoretic medium is formed on a substrate (106) by dispersing in a fluid (104) a plurality of electrophoretic capsules (102), contacting at least a portion of a substrate (106) with the fluid (104); and applying a potential difference between at least a part of the portion of the substrate (106) contacting the fluid (104) and a counter-electrode (110) in electrical contact with the fluid (104), thereby causing capsules (102) to be deposited upon at least part of the portion of the substrate (106) contacting the fluid (102). Patterned coatings of capsules containing different colors may be deposited in registration with electrodes using multiple capsule deposition steps. Alternatively, a patterned coating may be deposited upon a substrate containing a conductive layer by varying the conductivity of the conductive layer by radiation exposure or by coating portions of the conductive layer with an insulating layer, typically a photoresist.
    Type: Application
    Filed: March 24, 2004
    Publication date: November 18, 2004
    Applicant: E Ink Corporation
    Inventors: Richard M. Webber, Thomas H. Whitesides, Guy M. Danner, Craig A. Herb, Charles H. Honeyman, Michael McCreary
  • Publication number: 20040105036
    Abstract: An electro-optic display comprises a layer of reflective electro-optic material capable of changing its optical state on application of an electric field, an electrode, a heat generating component in heat conducting relationship with the electro-optic material, and a heat shield disposed between the heat generating component and the electro-optic material, the heat shield comprising a layer of thermally insulating material and a layer of thermally conducting material, the thermally conducting material being disposed between the thermally insulating material and the electro-optic material. The invention also provides an electrophoretic medium comprising a suspending fluid and a plurality of electrically charged particles suspended in the suspending fluid and capable of moving therethrough upon application of an electrical field to the electrophoretic medium, the suspending fluid containing a compatibilizer to reduce its coefficient of thermal expansion.
    Type: Application
    Filed: August 6, 2003
    Publication date: June 3, 2004
    Applicant: E INK CORPORATION
    Inventors: Guy M. Danner, Richard M. Webber, Richard J. Paolini, Libing Zhang
  • Publication number: 20030025855
    Abstract: An electro-optic display comprises first and second substrates and a lamination adhesive layer and a layer of a solid electro-optic material disposed between the first and second substrates, the lamination adhesive layer having a volume resistivity, measured at 10° C., which does not change by a factor of more than about 3 after being held at 25° C. and 45 percent relative humidity for 1000 hours. The electro-optic material is preferably an encapsulated electrophoretic material. Other desirable characteristics of lamination adhesives for use in electro-optic displays are also described.
    Type: Application
    Filed: July 9, 2002
    Publication date: February 6, 2003
    Applicant: E lnk Corporation
    Inventors: Mavyn M. Holman, Justin Abramson, Glen Crossley, Katharine Geramita, Robert W. Zehner, Karl R. Amundson, Libing Zhang, Richard M. Webber
  • Publication number: 20020180687
    Abstract: An electrophoretic medium comprises a plurality of particles suspended in a suspending fluid, the particles being capable of moving through the fluid upon application of an electric field to the medium, the fluid having dissolved or dispersed therein a polymer having a number average molecular weight in excess of about 20,000, the polymer being essentially non-absorbing on the particles. The polymer improves the bistability of the display (i.e., the period for which a written image persist without the display being refreshed) but does not greatly increase the viscosity of the suspending fluid, thus keeping the switching time of the display within reasonable limits. The medium may be encapsulated, or may be in the form a polymer-dispersed electrophoretic medium.
    Type: Application
    Filed: April 2, 2002
    Publication date: December 5, 2002
    Applicant: E Ink Corporation
    Inventor: Richard M. Webber