Patents by Inventor Eyal Handel

Eyal Handel 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).

  • Liquid electrophotographic ink composition
    Patent number: 9983498
    Abstract: A method for coating pigment particles is provided, the method comprising heating a polymer resin in a carrier fluid to dissolve the polymer resin; suspending in the carrier fluid white pigment particles to be coated; and cooling the carrier fluid at a rate of 2° C./hr or less to effect precipitation of the polymer resin from the carrier fluid such that a coating of the resin is formed on the pigment particles, thereby producing the white liquid electrophotographic ink composition.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: May 29, 2018
    Assignee: HP Indigo B.V.
    Inventors: Adi Mann, Eyal Handel, Albert Teishev, Marc Klein, Vladislav Kaploun
  • Liquid electrophotographic ink composition
    Patent number: 9983497
    Abstract: A method for coating pigment particles is provided, the method comprising heating a polymer resin in a carrier fluid to dissolve the polymer resin, suspending in the carrier fluid the pigment particles to be coated; and effecting precipitation of the polymer resin from the carrier fluid, such that a coating of the resin is formed on the pigment particles.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: May 29, 2018
    Assignee: HP Indigo B.V.
    Inventors: Adi Mann, Albert Teishev, Eyal Handel, Marc Klein, Olga Kagan, Yaron Grinwald, Vladislav Kaploun
  • Liquid electrophotographic ink composition
    Patent number: 9823597
    Abstract: A method for coating pigment particles is provided, the method comprising heating a polymer resin in a carrier fluid to dissolve the polymer resin; suspending in the carrier fluid white pigment particles to be coated; cooling the carrier fluid to effect precipitation of the polymer resin from the carrier fluid such that a coating of the resin is at least partially formed on the pigment particles; reheating the suspension of partially coated white pigment particles in the carrier fluid; and cooling the carrier fluid at a controlled rate to effect precipitation of the polymer resin from the carrier fluid such that a coating of the resin is formed on the pigment particles, thereby producing the white liquid electrophotographic ink composition.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: November 21, 2017
    Assignee: Hewlett-Parkard Indigo B.V.
    Inventors: Adi Mann, Eyal Handel, Albert Teishev, Marc Klein
  • LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION
    Publication number: 20170227878
    Abstract: A method for coating pigment particles is provided, the method comprising heating a polymer resin in a carrier fluid to dissolve the polymer resin; suspending in the carrier fluid white pigment particles to be coated; and cooling the carrier fluid at a rate of 2° C./hr or less to effect precipitation of the polymer resin from the carrier fluid such that a coating of the resin is formed on the pigment particles, thereby producing the white liquid electrophotographic ink composition.
    Type: Application
    Filed: July 29, 2014
    Publication date: August 10, 2017
    Inventors: Adi Mann, Eyal Handel, Albert Teishev, Marc Klein, Vladislav Kaploun
  • LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION
    Publication number: 20170227877
    Abstract: A method for coating pigment particles is provided, the method comprising heating a polymer resin in a carrier fluid to dissolve the polymer resin, suspending in the carrier fluid the pigment particles to be coated; and effecting precipitation of the polymer resin from the carrier fluid, such that a coating of the resin is formed on the pigment particles.
    Type: Application
    Filed: July 29, 2014
    Publication date: August 10, 2017
    Inventors: Adi Mann, Albert Teishev, Eyal Handel, Marc Klein, Olga Kagan, Yaron Grinwald, Vladislav Kaploun
  • LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION
    Publication number: 20170192372
    Abstract: A method for coating pigment particles is provided, the method comprising heating a polymer resin in a carrier fluid to dissolve the polymer resin; suspending in the carrier fluid white pigment particles to be coated; cooling the carrier fluid to effect precipitation of the polymer resin from the carrier fluid such that a coating of the resin is at least partially formed on the pigment particles; reheating the suspension of partially coated white pigment particles in the carrier fluid; and cooling the carrier fluid at a controlled rate to effect precipitation of the polymer resin from the carrier fluid such that a coating of the resin is formed on the pigment particles, thereby producing the white liquid electrophotographic ink composition.
    Type: Application
    Filed: July 29, 2014
    Publication date: July 6, 2017
    Applicant: Hewlett-Packard Indigo B.V.
    Inventors: Adi Mann, Eyal Handel, Albert Teishev, Marc Klein