Patents by Inventor Shiran ZABAR

Shiran ZABAR 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).

  • Metallic pigment particles
    Patent number: 11236248
    Abstract: A method for producing a conductive liquid electrophotographic ink composition is described, the method comprising: heating a polymer resin in a carrier fluid to dissolve the polymer resin; adding conductive metallic pigment particles to be coated to the carrier fluid; 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 conductive metallic pigment particles; reheating the suspension of partially coated conductive metallic 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 conductive metallic pigment particles, thereby producing the conductive liquid electrophotographic ink composition.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: February 1, 2022
    Assignee: HP Indigo B.V.
    Inventors: Olga Kagan, Yaron Grinwald, Rada Nuchimov, Shiran Zabar, Eyal Negreanu, Guy Nesher
  • Electrophotographic ink including pearlescent pigment
    Patent number: 10761445
    Abstract: According to an example, a resin, a carrier liquid, and a pearlescent pigment may be mixed to form a liquid electrophotographic ink.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 1, 2020
    Assignee: HP Indigo B.V.
    Inventors: Olga Kagan, Emad Masoud, Yana Reznick, Rada Nuchimov, Danny Feldman, Haim Cohen, Shiran Zabar, Yaron Grinwald, Michael Kokotov
  • Liquid electrophotographic ink composition
    Patent number: 10591839
    Abstract: Herein is described a liquid electrostatic ink composition comprising a carrier liquid, a resin, a colorant selected from a magenta colorant, a cyan colorant and a black colorant, an amine-containing basic dispersant having a total base number (TBN) in the range of about 10 to about 65 mgKOH/g material, the amine-containing basic dispersant present in an amount from about 5 wt. % to about 40 wt. % by total weight of colorant.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: March 17, 2020
    Assignee: HP Indigo B.V.
    Inventors: Gil Bar-Haim, Shiran Zabar, Danny Feldman, Alina Grishman, Albert Teishev
  • Electrostatic ink compositions
    Patent number: 10591838
    Abstract: Disclosed herein is an electrostatic ink composition. The composition may comprise a carrier liquid, which has suspended therein: thermochromic pigment particles having a layer of thermoplastic resin thereon. Method for forming electrostatic ink composition and a substrate having the electrostatic ink composition printed thereon are also disclosed herein.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: March 17, 2020
    Assignee: HP Indigo B.V.
    Inventors: Olga Kagan, Danny Feldman, Rada Nuchimov, Yaron Grinwald, Shiran Zabar, Gleb Romantcov
  • Electrophotographic ink including a volatile fragrance
    Patent number: 10514625
    Abstract: According to an example, an electrophotographic ink may include an adsorbent, a volatile fragrance, a resin and a carrier liquid.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: December 24, 2019
    Assignee: HP Indigo B.V.
    Inventors: Samer Farran, Guy Nesher, Yaron Grinwald, Shahar Stein, Shiran Zabar, Tony Azzam
  • LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION
    Publication number: 20190119512
    Abstract: Herein is described a liquid electrostatic ink composition comprising a carrier liquid, a resin, a colorant selected from a magenta colorant, a cyan colorant and a black colorant, an amine-containing basic dispersant having a total base number (TBN) in the range of about 10 to about 65 mgKOH/g material, the amine-containing basic dispersant present in an amount from about 5 wt. % to about 40 wt. % by total weight of colorant.
    Type: Application
    Filed: July 28, 2016
    Publication date: April 25, 2019
    Inventors: Gil Bar-Haim, Shiran Zabar, Danny Feldman, Alina Grishman, Albert Teishev
  • ELECTROPHOTOGRAPHIC INK INCLUDING A VOLATILE FRAGRANCE
    Publication number: 20190041765
    Abstract: According to an example, an electrophotographic ink may include an adsorbent, a volatile fragrance, a resin and a carrier liquid.
    Type: Application
    Filed: March 9, 2016
    Publication date: February 7, 2019
    Applicant: HP Indigo B.V.
    Inventors: Samer Farran, Guy NESHER, Yaron GRINWALD, Shahar STEIN, Shiran ZABAR, Tony AZZAM
  • ELECTROSTATIC INK COMPOSITIONS
    Publication number: 20190016907
    Abstract: Disclosed herein is an electrostatic ink composition. The composition may comprise a carrier liquid, which has suspended therein: thermochromic pigment particles having a layer of thermoplastic resin thereon. Method for forming electrostatic ink composition and a substrate having the electrostatic ink composition printed thereon are also disclosed herein.
    Type: Application
    Filed: March 18, 2016
    Publication date: January 17, 2019
    Applicant: HP Indigo B.V.
    Inventors: Olga KAGAN, Danny FELDMAN, Rada NUCHIMOV, Yaron GRINWALD, Shiran ZABAR, Gleb ROMANTCOV
  • ELECTROPHOTOGRAPHIC INK INCLUDING PEARLESCENT PIGMENT
    Publication number: 20190018332
    Abstract: According to an example, a resin, a carrier liquid, and a pearlescent pigment may be mixed to form a liquid electrophotographic ink.
    Type: Application
    Filed: March 24, 2016
    Publication date: January 17, 2019
    Applicant: HP Indigo B.V.
    Inventors: Olga KAGAN, Emad MASOUD, Yana REZNICK, Rada NUCHIMOV, Danny FELDMAN, Haim COHEN, Shiran ZABAR, Yaron GRINWALD, Michael KOKOTOV
  • ELECTROPHOTOGRAPHIC INK INCLUDING A CHARGE DIRECTOR
    Publication number: 20190018335
    Abstract: According to an example, a resin, a charge director, and a pigment may be ground to form a liquid electrophotographic ink.
    Type: Application
    Filed: April 6, 2016
    Publication date: January 17, 2019
    Applicant: Hp Indigo B.V.
    Inventors: Tal Rosenthal, Marc KLEIN, Eyal BACHAR, Albert TEISHEV, Shiran ZABAR
  • METALLIC PIGMENT PARTICLES
    Publication number: 20180371279
    Abstract: A method for producing a conductive liquid electrophotographic ink composition is described, the method comprising: heating a polymer resin in a carrier fluid to dissolve the polymer resin; adding conductive metallic pigment particles to be coated to the carrier fluid; 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 conductive metallic pigment particles; reheating the suspension of partially coated conductive metallic 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 conductive metallic pigment particles, thereby producing the conductive liquid electrophotographic ink composition.
    Type: Application
    Filed: March 4, 2016
    Publication date: December 27, 2018
    Applicant: HP Indigo B.V.
    Inventors: Olga KAGAN, Yaron GRINWALD, Rada NUCHIMOV, Shiran ZABAR, Eyal NEGREANU, Guy NESHER