Patents by Inventor Stella Stolin Roditi

Stella Stolin Roditi 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).

  • Patent number: 9785063
    Abstract: The present disclosure discloses a liquid electrophotographic ink. The ink includes a liquid vehicle, an ethylene acid copolymer, and an ethylene/(meth)acrylic acid C1-10 alkyl ester copolymer. Also disclosed is a method for the manufacture that ink and a method for performing a liquid electrophotographic process by printing a substrate with the ink.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: October 10, 2017
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Stella Stolin Roditi, Swissa Shay, Eyal Bachar, Getahun Biadglin, Marc Klein
  • 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
  • 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
  • Publication number: 20150118448
    Abstract: The present disclosure discloses a liquid electrophotographic ink. The ink includes a liquid vehicle, an ethylene acid copolymer, and an ethylene/(meth)acrylic acid C1-10 alkyl ester copolymer. Also disclosed is a method for the manufacture that ink and a method for performing a liquid electrophotographic process by printing a substrate with the ink.
    Type: Application
    Filed: April 27, 2012
    Publication date: April 30, 2015
    Inventors: Stella Stolin Roditi, Swissa Shay, Eyal Bachar, Getahun Biadglin, Marc Klein
  • 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
  • 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
  • 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
  • Publication number: 20140030651
    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: Application
    Filed: March 30, 2011
    Publication date: January 30, 2014
    Inventors: Stella Stolin Roditi, Fernanda Orlik, Haim Cohen, Albert Teishev, Nava Klein
  • Patent number: 8605352
    Abstract: An electronic ink containing charged particles includes a combination of resin particles, a pigment, and a charge director. The resin particles exhibit an average particle size less than 1.0 micron and contain a resin that exhibits a molecular weight of 500 to 20,000. The pigment is loaded on the resin particles. The charge director can physically associate with the resin particles. The charged particles may be negative or positive.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: December 10, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Yaron Grinwald, Stella Stolin Roditi, Yigal Berson, Zhang-Lin Zhou, Gregg Alan Combs, Jeffrey Todd Mabeck, Albert Teishev
  • Patent number: 8440379
    Abstract: The present disclosure is drawn to a liquid electrophotographic ink, comprising a carrier liquid, and a pigment-polymer blend composition dispersed in the carrier liquid, the pigment-polymer blend composition comprising a pigment and a polymer blend of three distinct polymers. The polymer blend can comprise a first polymer having a melt flow rate of about 20 to about 70 g/10 min and a Vicat softening point of about 60° C. to about 70° C., a second polymer having a melt flow rate of about 80 to about 120 g/10 min, and a third polymer having an acidity of about 160 to about 230 mg KOH/g and a melt flow rate of at least 500 g/10 min. The liquid electrophotographic ink is typically formulated for printing from a liquid electrophotographic printer.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: May 14, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stella Stolin Roditi, Albert Teishev, Keren Regev, Yael Warman
  • Patent number: 8356752
    Abstract: An electronic ink containing charged particles includes a combination of resin particles, a pigment, and a charge director. The resin particles exhibit an average particle size less than 1.0 micron and contain a resin that exhibits a molecular weight of 500 to 20,000. The pigment is loaded on the resin particles. The charge director can physically associate with the resin particles. The charged particles may be negative or positive.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: January 22, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Yaron Grinwald, Stella Stolin Roditi, Yigal Berson, Zhang-Lin Zhou, Gregg Alan Combs, Jeffrey Todd Mabeck, Albert Teishev
  • Publication number: 20120107579
    Abstract: An ink composition having a viscosity which is below about 50.0 cps and having, at least, 10 wt %, by total weight of ink composition, of non volatile substances. Said composition comprising a carrier liquid, a dispersing agent, and solid particles; said solid particles are dispersed in the carrier liquid and comprise pigments embedded with resin polymers.
    Type: Application
    Filed: July 7, 2009
    Publication date: May 3, 2012
    Inventors: Yaron Grinwald, Peretz Ben-Avraham, Eyal Bechar, Yigal Berson, Stella Stolin Roditi, Merav Shapira, Peter Forgacs, Albert Teishev
  • Publication number: 20110266347
    Abstract: An electronic ink containing charged particles includes a combination of resin particles, a pigment, and a charge director. The resin particles exhibit an average particle size less than 1.0 micron and contain a resin that exhibits a molecular weight of 500 to 20,000. The pigment is loaded on the resin particles. The charge director can physically associate with the resin particles. The charged particles may be negative or positive.
    Type: Application
    Filed: December 30, 2008
    Publication date: November 3, 2011
    Inventors: Yaron Grinwald, Stella Stolin Roditi, Yigal Berson, Zhang-Lin Zhou, Gregg Alan Combs, Jeffrey Todd Mabeck, Albert Teishev
  • Publication number: 20110261435
    Abstract: An electronic ink containing charged particles includes a combination of resin particles, a pigment, and a charge director. The resin particles exhibit an average particle size less than 1.0 micron and contain a resin that exhibits a molecular weight of 500 to 20,000. The pigment is loaded on the resin particles. The charge director can physically associate with the resin particles. The charged particles may be negative or positive.
    Type: Application
    Filed: December 30, 2008
    Publication date: October 27, 2011
    Inventors: Yaron Grinwald, Stella Stolin Roditi, Yigal Berson, Zhang-Lin Zhou, Gregg Alan Combs, Jeffrey Todd Mabeck, Albert Teishev
  • Patent number: 7977023
    Abstract: Briefly described, embodiments of this disclosure include ink composition for use in electrostatic imaging, method of making an ink formulation for use in electrostatic imaging, and the like.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: July 12, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stella Stolin Roditi, Albert Teishev
  • Publication number: 20110123228
    Abstract: The present disclosure is drawn to a liquid electrophotographic ink, comprising a carrier liquid, and a pigment-polymer blend composition dispersed in the carrier liquid, the pigment-polymer blend composition comprising a pigment and a polymer blend of three distinct polymers. The polymer blend can comprise a first polymer having a melt flow rate of about 20 to about 70 g/10 min and a Vicat softening point of about 60° C. to about 70° C., a second polymer having a melt flow rate of about 80 to about 120 g/10 min, and a third polymer having an acidity of about 160 to about 230 mg KOH/g and a melt flow rate of at least 500 g/10 min. The liquid electrophotographic ink is typically formulated for printing from a liquid electrophotographic printer.
    Type: Application
    Filed: June 10, 2008
    Publication date: May 26, 2011
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.
    Inventors: Stella Stolin Roditi, Albert Teishev, Keren Regev, Yael Warman
  • Publication number: 20110115867
    Abstract: A suction cup for a printer includes a cup portion that includes a contact surface adapted to contact print media within the printer, the contact surface being formed by a low surface energy material. In some embodiments, the contact surface is rough.
    Type: Application
    Filed: July 17, 2008
    Publication date: May 19, 2011
    Inventors: Peter Forgacs, Neta Filip-Granit, Stella Stolin Roditi, David Levanon, Liat Szapiro, Yossi Mor, Mark Sandler, Itzhak Ashkenazi, Meir Soria, Marc Klein
  • Publication number: 20090029273
    Abstract: Briefly described, embodiments of this disclosure include ink composition for use in electrostatic imaging, method of making an ink formulation for use in electrostatic imaging, and the like.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 29, 2009
    Inventors: Stella Stolin Roditi, Albert Teishev