Patents by Inventor Roi Liraz

Roi Liraz 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
    Patent number: 10344175
    Abstract: Herein is disclosed an electrostatic ink composition. In some examples, the electrostatic ink compositions comprise: a carrier liquid; a first resin; and a fluorescent pigment. The fluorescent pigment comprising a fluorescent dye and a second resin matrix, wherein the second resin is selected from the group comprising polyamide resins, polyvinylchlorides, polyolefin resins, polystyrenes, acrylonitrile-butadiene-styrene resins, polycarbonates, poly acrylic and methacrylic acid resins, polyethylene terephthalates, polyamide resins, polyurethanes, epoxy resins, silicone resins, polyester resins, alkyd resins, acrylonitrile polymers, polyesteramides or combinations thereof.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: July 9, 2019
    Assignee: HP Indigo B.V.
    Inventors: Biana Noikas, Dror Kella, Adi Vinegrad, Regina Guslitzer, Yaron Grinwald, Gil Bar-Haim, Tehila Ben-Ezra, Avishai Moshel, Emad Masoud, Yelena Litichevski, Roi Liraz, Noam Parvin
  • ELECTROSTATIC INK COMPOSITIONS
    Publication number: 20180155565
    Abstract: Herein is disclosed an electrostatic ink composition. In some examples, the electrostatic ink compositions comprise: a carrier liquid; a first resin; and a fluorescent pigment.
    Type: Application
    Filed: July 17, 2015
    Publication date: June 7, 2018
    Applicant: HP Indigo B.V.
    Inventors: Biana Noikas, Dror Kella, Adi Vinegrad, Regina Guslitzer, Yaron Grinwald, Gil Bar-Haim, Tehila Ben-Ezra, Avishai Moshel, Emad Masoud, Yelena Litichevski, Roi Liraz, Noam Parvin
  • 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
  • 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
  • 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
  • ELECTROSTATIC INK COMPOSITION, INK CONTAINER, PRINTING APPARATUS AND PRINTING METHOD
    Publication number: 20140147171
    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: Application
    Filed: July 13, 2011
    Publication date: May 29, 2014
    Inventors: Ilanit Mor, Basile Verdene, Albert Teishev, Roi Liraz, Yaron Grinwald, Nava Klein, Emad Masoud