Patents by Inventor David Steven Weiss

David Steven Weiss 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: 8611793
    Abstract: Apparatus for electrically reconditioning a rotatable photoreceptor in an electrophotographic (EP) printer includes a charger, an exposure subsystem, a transfer station, and an erase lamp arranged in that order around the photoreceptor in the direction of rotation thereof. A first corona electrode is disposed within 3 cm of the surface of the photoreceptor, but not in contact therewith, between the transfer station and the erase lamp. The transfer station and the erase lamp are at most 1 cm apart. A second corona electrode is disposed within 3 cm of the surface of the photoreceptor, but not in contact therewith, after the erase lamp in the direction of rotation of the photoreceptor. The erase lamp and the second corona electrode are less than 1 cm apart.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: December 17, 2013
    Assignee: Eastman Kodak Company
    Inventors: Mark Cameron Zaretsky, David Steven Weiss
  • Patent number: 8606148
    Abstract: An electrophotographic photoreceptor is prepared for charging. Corona electrodes before and after the erase lamp apply respective biases to provide the correct sign of charge for cleaning, and to discharged trapped charges in the photoreceptor. Toner is then cleaned off the photoreceptor. This leaves the photoreceptor electrically and mechanically reconditioned and ready for its next printing cycle.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: December 10, 2013
    Assignee: Eastman Kodak Company
    Inventors: Mark Cameron Zaretsky, David Steven Weiss
  • Publication number: 20130045028
    Abstract: An electrophotographic photoreceptor is prepared for charging. Corona electrodes before and after the erase lamp apply respective biases to provide the correct sign of charge for cleaning, and to discharged trapped charges in the photoreceptor. Toner is then cleaned off the photoreceptor. This leaves the photoreceptor electrically and mechanically reconditioned and ready for its next printing cycle.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 21, 2013
    Inventors: Mark Cameron Zaretsky, David Steven Weiss
  • Publication number: 20130045027
    Abstract: Apparatus for electrically reconditioning a rotatable photoreceptor in an electrophotographic (EP) printer includes a charger, an exposure subsystem, a transfer station, and an erase lamp arranged in that order around the photoreceptor in the direction of rotation thereof. A first corona electrode is disposed within 3 cm of the surface of the photoreceptor, but not in contact therewith, between the transfer station and the erase lamp. The transfer station and the erase lamp are at most 1 cm apart. A second corona electrode is disposed within 3 cm of the surface of the photoreceptor, but not in contact therewith, after the erase lamp in the direction of rotation of the photoreceptor. The erase lamp and the second corona electrode are less than 1 cm apart.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 21, 2013
    Inventors: Mark Cameron Zaretsky, David Steven Weiss
  • Patent number: 6517984
    Abstract: An electrophotographic element comprises: an electrically conducting layer, a charge generating layer overlying the electrically conducting layer, and a charge transport layer overlying the electrically conducting layer. The charge transport layer, which can be an overcoat overlying the charge generating layer, comprises the reaction product in an aqueous medium of a mixture comprising a silsesquioxane polymer and a hole transport compound that comprises a tertiary arylamine containing at least one alcoholic or one phenolic hydroxy substituent.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: February 11, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Wayne Thomas Ferrar, Jane Robinson Cowdery-Corvan, William Tod Gruenbaum, Jeanne Ellen Kaeding, Michel Frantz Molaire, Louis Joseph Sorriero, David Steven Weiss
  • Patent number: 5886359
    Abstract: An x-ray detector, detection assembly, and method of using the detector and detection assembly. The detector is used with an x-ray source and has a converter including a mass of prompt emitting radiographic phosphor particles and a photoconductive binder. The mass of particles is dispersed and embedded in the binder. The phosphor absorbs x-rays emitted by the source and emits longer wavelength actinic radiation responsive to the x-rays. The photoconductive binder absorbs the actinic radiation and produces electron-hole pairs responsive to the actinic radiation.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: March 23, 1999
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, David Paul Trauernicht, David Steven Weiss
  • Patent number: 5874018
    Abstract: Glassy solid electrolytes and charge transporting elements including antistatic elements and charge generating elements. The charge generating element has an electrically conductive layer, a charge generating layer overlying the electrically conductive layer, and a layer of glassy solid electrolyte overlying the electrically conductive layer. The glassy solid electrolyte includes a complex of silsesquioxane and a charge carrier. The complex has a surface resistivity from about 1.times.10.sup.10 to about 1.times.10.sup.17 ohms/sq. The complex has a T.sup.2 -silicon:T.sup.3 -silicon ratio of less than 1 to 1. The complex has a ratio of carbon atoms to silicon atoms of greater than about 1.2 to 1.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: February 23, 1999
    Assignee: Eastman Kodak Company
    Inventors: Wayne Thomas Ferrar, Jane Robin Cowdery-Corvan, Edward T. Miskinis, Catherine Newell, Donald S. Rimai, Louis Joseph Sorriero, John Anthony Sinicropi, David Steven Weiss, Nicholas Zumbulyadis
  • Patent number: 5731117
    Abstract: Glassy solid electrolytes and charge transporting elements including antistatic elements and charge generating elements. The charge generating element has an electrically conductive layer, a charge generating layer overlying the electrically conductive layer, and a layer of glassy solid electrolyte overlying the electrically conductive layer. The glassy solid electrolyte includes a complex of silsesquioxane and a charge carrier. The complex has a surface resistivity from about 1.times.10.sup.10 to about 1.times.10.sup.17 ohms/sq. The complex has a T.sup.2 -silicon:T.sup.3 -silicon ratio of less than 1 to 1. The complex has a ratio of carbon atoms to silicon atoms of greater than about 1.2 to 1.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: March 24, 1998
    Assignee: Eastman Kodak Company
    Inventors: Wayne Thomas Ferrar, Jane Robin Cowdery-Corvan, Edward T. Miskinis, Catherine Newell, Donald S. Rimai, Louis Joseph Sorriero, John Anthony Sinicropi, David Steven Weiss, Nicholas Zumbulyadis
  • Patent number: 5693442
    Abstract: A charge generating element having an electrically conductive layer, a charge generating layer overlying the electrically conductive layer, and an overcoat overlying the charge generating layer. The overcoat includes dye and a complex of inorganic oxide polymer and a charge carrier. The overcoat has a surface resistivity of from about 1.times.10.sup.10 to about 1.times.10.sup.17 ohms/sq.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: December 2, 1997
    Assignee: Eastman Kodak Company
    Inventors: David Steven Weiss, Wayne Thomas Ferrar, Jane Robin Cowdery-Corvan, John Anthony Sinicropi, Marie B. O'Regan
  • Patent number: D874458
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 4, 2020
    Assignee: Apple Inc.
    Inventors: Jody Akana, Bartley K. Andre, Shota Aoyagi, Anthony Michael Ashcroft, Jeremy Bataillou, Brad G. Boozer, Makiko Kawamura Brzezinski, Tyler Scott Bushnell, Daniel J. Coster, Daniele De Iuliis, Colin Ely, M. Evans Hankey, Phillip M. Hobson, Julian Hoenig, Richard P. Howarth, Jonathan P. Ive, Eric Steven Jol, Benjamin Jordan Kallman, Duncan Robert Kerr, David Nazzaro, Trevor Jordan Ness, Marc A. Newson, David Pelletier, Matthew Dean Rohrbach, Fletcher Rothkopf, Peter Russell-Clarke, Jason Christopher Sauers, Benjamin Andrew Shaffer, Anna-Katrina Shedletsky, Mikael Silvanto, Christopher J. Stringer, Samuel Bruce Weiss, Christopher M. Werner, Eugene Antony Whang, Michael Benjamin Wittenberg, Stephen Paul Zadesky, Rico Zörkendörfer