Patents by Inventor Peter J. Valianatos
Peter J. Valianatos 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: 20230333437Abstract: Methods for forming patterned displays including separated portions of encapsulated electrophoretic media disposed between contiguous light-transmissive electrodes. The resulting patterned electrophoretic display allows a viewer to see through the gaps between the portions of encapsulated electrophoretic media, thereby allowing the viewer to visualize surfaces or objects behind the electrophoretic display.Type: ApplicationFiled: April 12, 2023Publication date: October 19, 2023Inventors: Jennifer B. LAMPRON, Eric J. DUCHAINE, Peter J. VALIANATOS
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Patent number: 9005494Abstract: Prior art processes for producing protein-based capsules (for example, capsules for use in electrophoretic media) tend to be wasteful because they produce many capsules outside the desired size range, which is typically about 20 to 50 ?m. Capsule size distribution and yields can be improved by either (a) emulsifying a water-immiscible phase in a preformed coacervate of the protein; or (b) using a limited coalescence process with colloidal alumina as the surface-active particulate material.Type: GrantFiled: August 10, 2009Date of Patent: April 14, 2015Assignee: E Ink CorporationInventors: Peter J. Valianatos, Rajesh Chebiyam, Jeremy J. Manning, Michael L. Steiner, Thomas H. Whitesides, Michael D. Walls
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Publication number: 20100148385Abstract: A first electrophoretic medium comprises an electrically charged particle suspended in a suspending fluid, the particle having a polymeric shell having repeating units derived from at least one monomer the homopolymer of which is incompatible with the suspending fluid. A second, similar electrophoretic medium comprises a suspending fluid, and first and second types of electrically charged particle suspended in the suspending fluid, the two types of particle having differing optical characteristics but both having polymeric shells. The polymeric shells are arranged such that homoaggregation of the two types of particles is thermodynamically favored over heteroaggregation.Type: ApplicationFiled: February 25, 2010Publication date: June 17, 2010Applicant: E INK CORPORATIONInventors: Suzanne Balko, Alberto Goenaga, Peter J. Valianatos, Charles H. Honeyman, Elizabeth M. Gates, Matthew A. King
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Publication number: 20100044894Abstract: Prior art processes for producing protein-based capsules (for example, capsules for use in electrophoretic media) tend to be wasteful because they produce many capsules outside the desired size range, which is typically about 20 to 50 ?m. Capsule size distribution and yields can be improved by either (a) emulsifying a water-immiscible phase in a preformed coacervate of the protein; or (b) using a limited coalescence process with colloidal alumina as the surface-active particulate material.Type: ApplicationFiled: August 10, 2009Publication date: February 25, 2010Applicant: E INK CORPORATIONInventors: Peter J. Valianatos, Rajesh Chebiyam, Jeremy J. Manning, Michael L. Steiner, Thomas H. Whitesides, Michael D. Walls
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Publication number: 20090206499Abstract: A first electrophoretic medium comprises an electrically charged particle suspended in a suspending fluid, the particle having a polymeric shell having repeating units derived from at least one monomer the homopolymer of which is incompatible with the suspending fluid. A second, similar electrophoretic medium comprises a suspending fluid, and first and second types of electrically charged particle suspended in the suspending fluid, the two types of particle having differing optical characteristics but both having polymeric shells. The polymeric shells are arranged such that homoaggregation of the two types of particles is thermodynamically favored over heteroaggregation.Type: ApplicationFiled: May 1, 2009Publication date: August 20, 2009Applicant: E Ink CorporationInventors: Thomas H. Whitesides, Qingye Zhou, Robert W. Zehner, Karl R. Amundson, Suzanne Balko, Alberto Goenaga, Peter J. Valianatos, Charles H. Honeyman, Elizabeth M. Gates, Matthew A. King, Russell J. Wilcox
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Patent number: 7242513Abstract: An encapsulated electrophoretic display having a plurality of non-spherical capsules disposed substantially in a single layer on a substrate.Type: GrantFiled: May 20, 2004Date of Patent: July 10, 2007Assignee: E Ink CorporationInventors: Jonathan D. Albert, Glen Crossley, Katharine Geramita, Karl R. Amundson, Michael L. Steiner, Paul Drzaic, Andrew Loxley, Barrett Comiskey, Peter J. Valianatos
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Patent number: 6900851Abstract: The invention features a photoconductively addressed display and a method of photoconductive addressing in a display. The method includes providing an electro-optic imaging layer that extends in an X direction and a Y direction and comprises an array of image elements. A column electrode layer is provided adjacent to one side of the electro-optic imaging layer. The column electrode layer includes a plurality of column electrodes that each extend in the Y direction and are spaced from one another in the X direction. A photoconductive layer disposed between the electro-optic imaging layer and the column electrode layer is provided. An elongate portion of the photoconductive layer is illuminated in the X direction while scanning the illumination in the Y direction to translate a location of the illuminated elongate portion.Type: GrantFiled: February 8, 2002Date of Patent: May 31, 2005Assignee: E Ink CorporationInventors: Ian D. Morrison, Rachael A. Forgit, Peter J. Valianatos, Craig A. Herb, Guy M. Danner
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Patent number: 6839158Abstract: An encapsulated electrophoretic display having a plurality of non-spherical capsules disposed substantially in a single layer on a substrate.Type: GrantFiled: October 6, 1999Date of Patent: January 4, 2005Assignee: E Ink CorporationInventors: Jonathan D. Albert, Glen Crossley, Katharine Geramita, Karl R. Amundson, Michael L. Steiner, Paul Drzaic, Andrew Loxley, Barrett Comiskey, Peter J. Valianatos
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Publication number: 20040217929Abstract: An encapsulated electrophoretic display having a plurality of non-spherical capsules disposed substantially in a single layer on a substrate.Type: ApplicationFiled: May 20, 2004Publication date: November 4, 2004Applicant: E Ink CorporationInventors: Jonathan D. Albert, Glen Crossley, Katharine Geramita, Karl R. Amundson, Michael L. Steiner, Paul Drzaic, Andrew Loxley, Barrett Comiskey, Peter J. Valianatos
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Publication number: 20030151702Abstract: The invention features a photoconductively addressed display and a method of photoconductive addressing in a display. The method includes providing an electro-optic imaging layer that extends in an X direction and a Y direction and comprises an array of image elements. A column electrode layer is provided adjacent to one side of the electro-optic imaging layer. The column electrode layer includes a plurality of column electrodes that each extend in the Y direction and are spaced from one another in the X direction. A photoconductive layer disposed between the electro-optic imaging layer and the column electrode layer is provided. An elongate portion of the photoconductive layer is illuminated in the X direction while scanning the illumination in the Y direction to translate a location of the illuminated elongate portion.Type: ApplicationFiled: February 8, 2002Publication date: August 14, 2003Inventors: Ian D. Morrison, Rachael A. Forgit, Peter J. Valianatos, Craig A. Herb, Guy M. Danner
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Publication number: 20030137717Abstract: An encapsulated electrophoretic display having a plurality of non-spherical capsules disposed substantially in a single layer on a substrate.Type: ApplicationFiled: October 6, 1999Publication date: July 24, 2003Inventors: JONATHAN D. ALBERT, GLEN CROSSLEY, KATHARINE GERAMITA, KARL R. AMUNDSON, MICHAEL L. STEINER, PAUL DRZAIC, ANDREW LOXLEY, BARRETT COMISKEY, PETER J. VALIANATOS
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Patent number: 5693372Abstract: A process for dip coating drums comprising providing a drum having an outer surface to be coated, an upper end and a lower end, providing at least one coating vessel having a bottom, an open top and a cylindrically shaped vertical interior wall having a diameter greater than the diameter of the drum, flowing liquid coating material from the bottom of the vessel to the top of the vessel, immersing the drum in the flowing liquid coating material while maintaining the axis of the drum in a vertical orientation, maintaining the outer surface of the drum in a concentric relationship with the vertical interior wall of the cylindrical coating vessel while the drum is immersed in the coating material, the outer surface of the drum being radially spaced from the vertical interior wall of the cylindrical coating vessel, maintaining laminar flow motion of the coating material as it passes between the outer surface of the drum and the vertical interior wall of the vessel, maintaining the radial spacing between the outerType: GrantFiled: February 29, 1996Date of Patent: December 2, 1997Assignee: Xerox CorporationInventors: Alan B. Mistrater, Steven J. Grammatica, Peter J. Valianatos, Timothy J. Leenhouts, April M. Mattox, Rachael A. Forgit, John S. Chambers, Roger T. Janezic, Leslie B. Cummins, Richard C. Petralia, Edward C. Williams, Mark S. Thomas, John T. Dilko, John K. Williams
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Patent number: 5681391Abstract: Apparatus for dip coating comprising a drum having an outer surface to be coated, an upper end and a lower end, at least one coating vessel having a bottom, an open top and a cylindrically shaped vertical interior wall having a diameter greater than the diameter of the drum, an inlet at the bottom of the vessel, the inlet adapted to feed flowing coating fluid into the vessel, a mandrel adapted to maintain the outer surface of the drum in a concentric relationship with the vertical interior wall of the cylindrical coating vessel while the drum is immersed in the flowing coating material, the outer surface of the drum being radially spaced from the vertical interior wall of the cylindrical coating vessel, and at least one flow regulating member adapted to maintain laminar flow motion of the coating material as the fluid passes between the outer surface of the drum and the vertical inner wall of the vessel.Type: GrantFiled: February 29, 1996Date of Patent: October 28, 1997Assignee: Xerox CorporationInventors: Alan B. Mistrater, Steven J. Grammatica, Peter J. Valianatos, Timothy J. Leenhouts, April M. Mattox, Rachael A. Forgit, John S. Chambers, Roger T. Janezic, Leslie B. Cummins, Richard C. Petralia, Edward C. Williams, Mark S. Thomas, John T. Dilko, John K. Williams
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Patent number: 5529870Abstract: An electrophotographic imaging member is characterized by a halogenindium phthalocyanine produced by dry milling and treating with an organic amine solvent.Type: GrantFiled: May 11, 1995Date of Patent: June 25, 1996Assignee: Xerox CorporationInventors: Steven J. Grammatica, Ah-Mee Hor, Roger E. Gaynor, Alan B. Mistrater, Peter J. Valianatos, John S. Chambers, Rachael A. Forgit, Jacques Poitras