Patents by Inventor Albert Teishev

Albert Teishev 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).

  • ELECTROPHOTOGRAPHIC PRINTING
    Publication number: 20160062258
    Abstract: The present disclosure relates to a liquid electrophotographic ink composition comprising clay platelets. Also disclosed herein is a method for electrophotographic printing, and a print substrate.
    Type: Application
    Filed: July 5, 2013
    Publication date: March 3, 2016
    Inventors: Haim Cohen, Albert Teishev, Ilanit Mor, Nurit Carmel-Barnea, Itamar Sela
  • Polymer-encapsulated metallic ink particles and metallic electrophotographic inks
    Patent number: 9244370
    Abstract: A method for making polymer-encapsulated metallic ink particles is disclosed herein. An ethylene-based polymeric resin powder is formed, and is mixed with a metallic pigment powder to form a powder mixture. The powder mixture is melted to form a metallic polymer melt. A non-polar carrier is added to the metallic polymer melt to form a slurry. The slurry is processed in a microfluidizer.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: January 26, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Doris Chun, Hou T. Ng, Albert Teishev
  • Electrostatic ink composition, ink container, printing apparatus and printing method
    Patent number: 9239533
    Abstract: Disclosed is an electrostatic ink composition, comprising a single charge director and a charge control agent that counters the build up of negative optical density memory on the intermediate transfer member of a printing apparatus using the electrostatic ink.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: January 19, 2016
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Ilanit Mor, Basile Verdene, Albert Teishev, Roi Liraz, Yaron Grinwald, Nava Klein, Emad Masoud
  • METHODS OF PRINTING AND ELECTROSTATIC INK COMPOSITIONS
    Publication number: 20150338757
    Abstract: Methods of Printing and Electrostatic Ink Compositions Here is described a method of printing on a plastic substrate, the method comprising: providing an electrostatic ink composition comprising a carrier liquid, and particles comprising a resin, and a slip agent dispersed in the carrier liquid; forming a latent electrostatic image on a surface; contacting the surface with the electrostatic ink composition, such that at least some of the particles and the slip agent are transferred to the surface to form a developed toner image on the surface; and transferring the toner image to the plastic substrate. Electrostatic ink compositions and plastic substrates are also disclosed.
    Type: Application
    Filed: November 20, 2012
    Publication date: November 26, 2015
    Inventors: Fernanda Orlik, Igor Shotri, Albert Teishev
  • LIQUID ELECTROPHOTOGRAPHIC INK
    Publication number: 20150316868
    Abstract: A liquid electrophotographic ink includes a non-polar carrier fluid, a metallic pigment particle, and resin particles. The metallic pigment particle includes a non-functionalized aluminum pigment, and a latex layer directly contacting a surface of the non-functionalized aluminum pigment to encapsulate the non-functionalized aluminum pigment. The resin particles are i) present as discrete particles in the non-polar carrier fluid or ii) associated with the latex layer.
    Type: Application
    Filed: January 28, 2013
    Publication date: November 5, 2015
    Inventors: Sivapackia Ganapathiappan, Hou T. Ng, Albert Teishev
  • METHODS OF PRINTING AND ELECTROSTATIC INK COMPOSITIONS
    Publication number: 20150301465
    Abstract: Methods of Printing and Electrostatic Ink Compositions Herein are disclosed electrostatic ink compositions, methods of printing and printed substrates. In some examples, the electrostatic ink composition comprises a carrier liquid, particles comprising a graft co-polymer comprising an acrylate polymer backbone onto which has been grafted polysiloxane side chains, wherein the particles are dispersed in the carrier liquid.
    Type: Application
    Filed: November 20, 2012
    Publication date: October 22, 2015
    Inventors: Emad Masoud, Yael Kowal-Blau, Albert Teishev, Ilanit Mor, Nurit Carmel-Barnea, Julia Kornilov
  • Liquid toner composition
    Patent number: 9122206
    Abstract: The present disclosure is drawn to a liquid toner composition comprising: (a) a carrier liquid; (b) particles comprising (i) a first component comprising a polymer having acidic side groups; and (ii) a second component comprising a polymer having ester side groups; and (c) a charge director. Also described herein are a method of producing a liquid toner composition and a method of electrophotographic printing using a liquid toner composition.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: September 1, 2015
    Assignee: HEWLETT-PACKARD INDIGO B.V.
    Inventors: Stella Stolin Roditi, Fernanda Orlik, Haim Cohen, Albert Teishev, Nava Klein
  • METALLIC PIGMENT PARTICLES AND ELECTROSTATIC INKS
    Publication number: 20150175826
    Abstract: The present disclosure relates to a method for coating conductive metallic pigment particles, the method comprising: providing a first liquid carrier containing a dissolved resin and suspended conductive metallic pigment particles; effecting precipitation of the resin from the first liquid, such that a coating of the resin is formed on the conductive metallic pigment particles. Also disclosed herein are conductive metallic pigment particles, and an electrostatic ink composition comprising coated conductive metallic pigment particles.
    Type: Application
    Filed: July 20, 2012
    Publication date: June 25, 2015
    Applicant: Hewlett-Packard Indigo B.V.
    Inventors: Ilanit Mor, Albert Teishev, Yaron Grinwald, Julia Kornilov, Adi Inbar, Mirit Shitrit
  • Liquid electrophotographic inks
    Patent number: 8980518
    Abstract: The present disclosure provides for a liquid electrophotographic (LEP) ink comprising a carrier fluid, a pigment, a high melt viscosity ethylene acrylic acid copolymer resin, and a high acid ethylene acrylic acid copolymer resin. The high acid ethylene acrylic acid copolymer resin can have an acid content of at least 15 wt % and a viscosity of at least 8,000 poise. Additionally, the LEP ink can have a total resin acidity of at least 15 wt % and a total resin melt viscosity of at least 20,000 poise.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: March 17, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stella Stolin Roditi, Haim Cohen, Neta Filip-Granit, Roi Liraz, Eyal Bodinger, Marc Klein, Nava Klein, Eyal Bachar, Swissa Shay, Albert Teishev, Yaron Grinwald, Fernanda Orlik, Ilanit Mor
  • High NVS liquid toner
    Patent number: 8974997
    Abstract: The present disclosure is drawn to LEP toners, systems, and methods of manufacturing LEP liquid toners. Specifically, a high NVS liquid toner can comprise a ground up admixture of a hydrocarbon carrier fluid, pigment particles, and a polymer paste having an NVS content of about 38 wt % to about 65 wt %. The resultant high NVS liquid toner has an NVS content of about 28 wt % to about 38 wt % and a viscosity of about 3,000 cPs to about 25,000 cPs.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: March 10, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eyal Bachar, Swissa Shay, Yaron Grinwald, Merav Shapira, Albert Teishev, Nava Klein
  • Liquid developer with an incompatible additive
    Patent number: 8940469
    Abstract: A liquid developer for electrography, comprising toner particles dispersed in a liquid carrier, wherein the toner particles include a pigment, a thermoplastic resin, and an organic filler, which organic filler is reactive with groups of the thermoplastic resin and incompatible with the liquid carrier.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: January 27, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Albert Teishev, Stalla Stolin Rodith, Michael Shishkin
  • Liquid electrophotographic ink and method for making the same
    Patent number: 8932791
    Abstract: A liquid electrophotographic ink is disclosed herein. One example of the liquid electrophotographic ink includes a non-polar carrier liquid; pigmented toner particles; a charge director; and polymer resin encapsulated metal oxide nanoparticles. A method for making the liquid electrophotographic ink is also disclosed herein.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: January 13, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Doris Pik-Yiu Chun, Hou T. Ng, Albert Teishev
  • Coated substrates for liquid electrophotographic printing
    Patent number: 8927096
    Abstract: The present disclosure is drawn to compositions and methods involving coated substrates for liquid electrophotographic printing. Generally, a coated substrate for liquid electrophotographic printing can comprise a polyethylene- or polypropylene-based substrate and a coating adhered to the substrate, the coating comprising a water-based aliphatic polyurethane polymer.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: January 6, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Hou T. Ng, Eric Hoarau, Albert Teishev, Sergio Brandriss
  • LIQUID ELECTROPHOTOGRAPHIC INKS
    Publication number: 20140363208
    Abstract: The present invention relates to a liquid electrophotographic ink comprising a carrier liquid, a pigmented resin composite dispersed in the carrier liquid, and about 0.15 to about 10% (w/w) of an organic wax. The liquid electrophotographic ink is typically formulated for printing in a liquid electrophotographic printer.
    Type: Application
    Filed: December 19, 2011
    Publication date: December 11, 2014
    Applicant: Hewlett-Packard Indigo B.V.
    Inventors: Stella Stolin Roditi, Haim Cohen, Getahun Biadglin, Femanda Orilik, Nava Klein, Albert Teishev
  • Liquid electrophotographic inks
    Patent number: 8895219
    Abstract: An ink is disclosed. The ink includes a carrier fluid; an encapsulated metallic pigment particle further including a metallic pigment particle and a polymer, wherein the polymer covers between 70% and 100%, inclusive, of the surface area of the metallic pigment particle and wherein the morphology of the metallic pigment particle by itself is substantially the same as the morphology of the metallic pigment particle covered by the polymer; and a polymer resin.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: November 25, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Hou T. Ng, Albert Teishev
  • POLYMER-ENCAPSULATED METALLIC INK PARTICLES AND METALLIC ELECTROPHOTOGRAPHIC INKS
    Publication number: 20140342279
    Abstract: A method for making polymer-encapsulated metallic ink particles is disclosed herein. An ethylene-based polymeric resin powder is formed, and is mixed with a metallic pigment powder to form a powder mixture. The powder mixture is melted to form a metallic polymer melt. A non-polar carrier is added to the metallic polymer melt to form a slurry. The slurry is processed in a microfluidizer.
    Type: Application
    Filed: January 5, 2012
    Publication date: November 20, 2014
    Inventors: Doris Chun, Hou T. Ng, Albert Teishev
  • ELECTROSTATIC PRINTING
    Publication number: 20140320576
    Abstract: Described herein is a method for electrostatic printing comprising: (i) providing an ink composition comprising: a hydrocarbon carrier liquid and particles comprising a resin and a colorant, and wherein the ink composition contains less than 0.3 mg of charge director per g of solids in the ink composition; (ii) adding a charge director to the ink composition, such that the total amount of charge director in the ink composition is at least 0.6 mg per g of solids in the ink composition, and, (iii) within a predetermined time of adding the charge director, printing the ink onto a print medium in an electrostatic printing process, wherein the predetermined time is 90 minutes or less. Also described herein is a packaged ink composition, and method for producing it.
    Type: Application
    Filed: January 16, 2012
    Publication date: October 30, 2014
    Inventors: Gil Bar-Haim, Amir Ofir, Ilanit Mor, Alina Grishman, Albert Teishev
  • LIQUID ELECTROPHOTOGRAPHIC INKS
    Publication number: 20140314449
    Abstract: The present disclosure provides for a liquid electrophotographic (LEP) ink comprising a carrier fluid, a pigment, a high melt viscosity ethylene acrylic acid copolymer resin, and a high acid ethylene acrylic acid copolymer resin. The high acid ethylene acrylic acid copolymer resin can have an acid content of at least 15 wt % and a viscosity of at least 8,000 poise. Additionally, the LEP ink can have a total resin acidity of at least 15 wt % and a total resin melt viscosity of at least 20,000 poise.
    Type: Application
    Filed: January 31, 2011
    Publication date: October 23, 2014
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Stella Stolin Roditi, Haim Cohen, Neta Filip-Granit, Roi Liraz, Eyal Bodinger, Marc Klein, Nava Klein, Eyal Bachar, Swissa Shay, Albert Teishev, Yaron Grinwald, Fernanda Orlik, Ilanit Mor
  • LIQUID ELECTROPHOTOGRAPHIC INKS
    Publication number: 20140287357
    Abstract: The present disclosure provides for compositions, methods, and systems directed towards a liquid electrophotographic ink comprising a carrier fluid, a pigment, a first resin, and a stable cross-linkable resin that is solvated or swellable with the carrier fluid, where the stable cross-linkable resin does not undergo cross-linking until a temperature of at least 110° C. and, once cross-linked, does not melt until a temperature of at least 300° C.
    Type: Application
    Filed: October 25, 2011
    Publication date: September 25, 2014
    Inventors: Doris Chun, Hou T. Ng, Albert Teishev
  • Liquid toner including latex particles
    Patent number: 8765348
    Abstract: A liquid toner is disclosed herein. The liquid toner includes a toner composition with latex particles incorporated therein. The toner composition includes charged toner particles incorporated into a non-polar liquid carrier. The latex particles are polymer particles of acrylic monomers, vinylic monomers, or mixtures thereof, and each latex particle has a particle size ranging from about 20 nm to about 5 ?m.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: July 1, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Hou T. Ng, Albert Teishev