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).

  • ELECTROSTATIC INK COMPOSITIONS
    Publication number: 20170139339
    Abstract: Herein is disclosed method of producing an electrostatic ink composition, the method comprising: mixing a pigment and a dispersant to form a pigment dispersion; wherein the pigment is acidic and the dispersant is basic or the pigment is basic and the dispersant is acidic; and then grinding the pigment dispersion with a resin, and wherein a charge director is combined with the pigment and dispersant before, during or after the grinding of the pigment dispersion with the resin to form the electrostatic ink composition.
    Type: Application
    Filed: April 30, 2014
    Publication date: May 18, 2017
    Applicant: Hewlett-Packard Indigo, B.V.
    Inventors: Tal ROSENTHAL, Albert TEISHEV, Gil BAR-HAIM, Marc KLEIN
  • LIQUID ELECTROPHOTOGRAPHIC VARNISH COMPOSITION
    Publication number: 20170108792
    Abstract: Herein is disclosed a liquid electrophotographic varnish composition comprising: a polymer resin; an epoxy-based cross-linking agent; a metal catalyst and/or a photo-initiator for catalysing the cross-linking; and a carrier liquid.
    Type: Application
    Filed: March 25, 2014
    Publication date: April 20, 2017
    Inventors: Tony Azzam, Ilanit Mor, Albert Teishev, Guy Nesher, Getahun Biadglin, Haim Cohen, Samer Farran, Nurit Carmel-Barnea, Julia Kornilov
  • COATED SILVER COLORED COLORANT
    Publication number: 20170088714
    Abstract: A coated silver colored colorant includes a silver colored pigment, and a primer polymer at least partially coating the silver colored pigment. The primer polymer has a glass transition temperature that is less than 40° C. A passivating polymer is attached to the primer polymer. The passivating polymer has a glass transition temperature that is greater than 40° C.
    Type: Application
    Filed: April 29, 2014
    Publication date: March 30, 2017
    Inventors: Sivapackia Ganapathiappan, Hou T. Ng, Albert Teishev
  • Metallic pigment particles and electrostatic inks
    Patent number: 9550903
    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: Grant
    Filed: July 20, 2012
    Date of Patent: January 24, 2017
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Ilanit Mor, Albert Teishev, Yaron Grinwald, Julia Kornilov, Adi Inbar, Mirit Shitrit
  • Inks for liquid electrophotography
    Patent number: 9547248
    Abstract: A method of manufacturing a liquid electrophotographic ink includes: mixing a pigment with a resin powder; and microfluidizing the mixture together with a carrier fluid in a microfluidizer in a number of passes to form a concentrated ink containing composite particles.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: January 17, 2017
    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: 20160370726
    Abstract: In an example of a method for making polymer-encapsulated metallic ink pigment particles, a layer of a transparent resin dispersion is disposed on a flexible substrate. The resin dispersion layer is substantially dried, and a base resin layer is formed. A slurry is disposed onto the base resin layer. The slurry includes metallic pigment particles and polymer particles dispersed in a non-aqueous carrier. The slurry is dried to form a metallic pigment-polymer sheet. Another layer of the transparent resin dispersion is disposed on the metallic pigment-polymer sheet and is dried. A coating resin layer is formed. The metallic pigment-polymer sheet and the base and coating transparent resin layers form a tri-layer film having the metallic pigment particles encapsulated between the base and coating transparent resin layers.
    Type: Application
    Filed: April 28, 2014
    Publication date: December 22, 2016
    Inventors: Lihua Zhao, Yan Zhao, Doris Chun, Sivapackia Ganapathiappan, Hou T. Ng, Albert Teishev
  • Methods of printing and electrostatic ink compositions
    Patent number: 9523933
    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: Grant
    Filed: November 20, 2012
    Date of Patent: December 20, 2016
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Emad Masoud, Jr., Yael Kowal-Blau, Albert Teishev, Ilanit Mor, Nurit Carmel-Barnea, Julia Kornilov
  • LIQUID ELECTROPHOTOGRAPHIC INKS
    Publication number: 20160320718
    Abstract: A method of manufacturing a liquid electrophotographic ink concentrate includes: milling a mixture comprising ink pigments and polyamine-based dispersants in the presence of milling media to produce nano-scale ink pigments having an average particle size of less than 100 nanometers; and attaching at least one nano-scale ink pigment near surfaces of a base resin particle to form a pigment-resin composition.
    Type: Application
    Filed: February 20, 2014
    Publication date: November 3, 2016
    Inventors: Hou T. Ng, Howard S. Tom, Albert Teishev
  • ELECTROSTATIC INK COMPOSITIONS
    Publication number: 20160306287
    Abstract: Herein is disclosed an electrostatic ink composition comprising: a) chargeable particles comprising a resin; b) a charge director comprising a sulfosuccinate salt of the general formula M?Am, wherein M? is a metal, m is the valence of M?, and A is an ion of the general formula (I): (I) [R3—O—C(O)CH2CH(SO3)C(O)—O—R4]? wherein each of R3 and R4 is an alkyl group; and c) an optionally substituted naphthalene-sulfonate moiety. Also disclosed is a method of manufacturing an electrostatic ink composition and a printed medium having printed thereon an electrostatic ink composition.
    Type: Application
    Filed: January 24, 2014
    Publication date: October 20, 2016
    Inventors: Emad Masoud, Yael Kowal-Blau, Albert Teishev, Nurit Carmel-Barnea
  • Liquid electrophotographic inks
    Patent number: 9442405
    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: Grant
    Filed: October 25, 2011
    Date of Patent: September 13, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Doris Chun, Hou T. Ng, Albert Teishev
  • Electrostatic printing
    Patent number: 9428655
    Abstract: Described herein is a method for electrostatic printing including: (i) providing an ink composition having: a hydrocarbon carrier liquid and particles includes 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.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: August 30, 2016
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Gil Bar-Haim, Amir Ofir, Ilanit Mor, Alina Grishman, Albert Teishev
  • HIGH OPACITY WHITE INKS CONTAINING MICA-BASED MINERALS WITH TITANIA
    Publication number: 20160246203
    Abstract: A high opacity white ink containing a mica-based mineral with titania is provided. A method of manufacturing the high opacity white ink is also provided.
    Type: Application
    Filed: November 1, 2013
    Publication date: August 25, 2016
    Inventors: Sivapackia Ganapathiappan, Hou T. Ng, Albert Teishev
  • Charge director for liquid toner
    Patent number: 9417545
    Abstract: A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I) [R1—O—C(O)CH2CH(SO3?)C(O)—O—R2],??(I) wherein each of R1 and R2 is an alkyl group; said charge director material being substantially free of acids of the general formula (I), wherein one or both of R1 and R2 is hydrogen, and if only one of them is hydrogen, the other is an alkyl group.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: August 16, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Yaacov Almog, Avi Koller, Elliad Silcoff, Albert Teishev, Yaffa Israeli, Gary Larson, Lufei Lin
  • Liquid electrophotographic inks
    Patent number: 9395638
    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: Grant
    Filed: December 19, 2011
    Date of Patent: July 19, 2016
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Stella Stolin Roditi, Haim Cohen, Getahun Biadglin, Fernanda Orlik, Nava Klein, Albert Teishev
  • Liquid electrophotographic ink
    Patent number: 9395639
    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: Grant
    Filed: January 28, 2013
    Date of Patent: July 19, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Hou T. Ng, Albert Teishev
  • CHARGE DIRECTOR FOR LIQUID TONER
    Publication number: 20160170320
    Abstract: A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I) [R1—O—C(O)CH2CH(SO3?)C(O)—O—R2],??(I) wherein each of R1 and R2 is an alkyl group; said charge director material being substantially free of acids of the general formula (I), wherein one or both of R1 and R2 is hydrogen, and if only one of them is hydrogen, the other is an alkyl group,
    Type: Application
    Filed: February 23, 2016
    Publication date: June 16, 2016
    Inventors: Yaacov Almog, Avi Koller, Elliad Silcoff, Albert Teishev, Yaffa Israeli, Gary Larson, Lufei Lin
  • Charge director for liquid toner
    Patent number: 9353267
    Abstract: A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I) [R1—O—C(O)CH2CH(SO3?)C(O)—O—R2],??(I) wherein each of R1 and R2 is an alkyl group; said charge director material being substantially free of acids of the general formula (I), wherein one or both of R1 and R2 is hydrogen, and if only one of them is hydrogen, the other is an alkyl group.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: May 31, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Yaacov Almog, Avi Koller, Elliad Silcoff, Albert Teishev, Yaffa Israeli, Gary Larson, Lufei Lin
  • ELECTROSTATIC PRINTING
    Publication number: 20160121622
    Abstract: Herein is disclosed a method of printing comprising the steps of: (a) applying an ink comprising a thermoplastic resin to a print substrate using an electrostatic printing process; and (b) applying an overcoat composition comprising a crosslinking agent to the ink on the print substrate, such that the thermoplastic resin of the ink is crosslinked. Print substrates and printing systems are also disclosed.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 5, 2016
    Inventors: Ilanit Mor, Yacov Almog, Albert Teishev, Tony Azzam, Julia Kornilov
  • Deinkable liquid toner
    Patent number: 9329516
    Abstract: A deinkable liquid toner is disclosed herein. The deinkable liquid toner includes a non-polar carrier fluid, a styrene-alkyl acrylate, and a colorant. The styrene-alkyl acrylate has a glass transition temperature ranging from about 65 C to about 100 C. A method for making the deinkable liquid toner and a printing system are also disclosed herein.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: May 3, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hou T. Ng, Sivapackia Ganapathiappan, Albert Teishev
  • METHOD OF PRODUCING AN ELECTROSTATIC INK COMPOSITION
    Publication number: 20160068692
    Abstract: A method of producing an electrostatic ink composition, the method comprising: providing a precursor ink composition comprising a resin and a pigment dispersed in a liquid carrier; wherein the precursor ink composition comprises 30 wt % or more non-volatile solids; and spraying a lubricating liquid onto the surface of the precursor ink composition to form the electrostatic ink composition.
    Type: Application
    Filed: July 17, 2013
    Publication date: March 10, 2016
    Inventors: Eyal Bachar, Marc Klein, Albert Teishev, Hanit Marom Tchaicheeyan