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).
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Patent number: 9785063Abstract: 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: GrantFiled: April 27, 2012Date of Patent: October 10, 2017Assignee: Hewlett-Packard Indigo B.V.Inventors: Stella Stolin Roditi, Swissa Shay, Eyal Bachar, Getahun Biadglin, Marc Klein
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Patent number: 9395638Abstract: 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: GrantFiled: December 19, 2011Date of Patent: July 19, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Stella Stolin Roditi, Haim Cohen, Getahun Biadglin, Fernanda Orlik, Nava Klein, Albert Teishev
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Patent number: 9122206Abstract: 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: GrantFiled: March 30, 2011Date of Patent: September 1, 2015Assignee: HEWLETT-PACKARD INDIGO B.V.Inventors: Stella Stolin Roditi, Fernanda Orlik, Haim Cohen, Albert Teishev, Nava Klein
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Publication number: 20150118448Abstract: 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: ApplicationFiled: April 27, 2012Publication date: April 30, 2015Inventors: Stella Stolin Roditi, Swissa Shay, Eyal Bachar, Getahun Biadglin, Marc Klein
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Patent number: 8980518Abstract: 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: GrantFiled: January 31, 2011Date of Patent: March 17, 2015Assignee: 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
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Publication number: 20140363208Abstract: 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: ApplicationFiled: December 19, 2011Publication date: December 11, 2014Applicant: Hewlett-Packard Indigo B.V.Inventors: Stella Stolin Roditi, Haim Cohen, Getahun Biadglin, Femanda Orilik, Nava Klein, Albert Teishev
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Publication number: 20140314449Abstract: 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: ApplicationFiled: January 31, 2011Publication date: October 23, 2014Applicant: 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
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Publication number: 20140030651Abstract: 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: ApplicationFiled: March 30, 2011Publication date: January 30, 2014Inventors: Stella Stolin Roditi, Fernanda Orlik, Haim Cohen, Albert Teishev, Nava Klein
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Patent number: 8605352Abstract: 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: GrantFiled: December 30, 2008Date of Patent: December 10, 2013Assignee: 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
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Patent number: 8440379Abstract: 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: GrantFiled: June 10, 2008Date of Patent: May 14, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stella Stolin Roditi, Albert Teishev, Keren Regev, Yael Warman
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Patent number: 8356752Abstract: 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: GrantFiled: December 30, 2008Date of Patent: January 22, 2013Assignee: 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
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Publication number: 20120107579Abstract: 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: ApplicationFiled: July 7, 2009Publication date: May 3, 2012Inventors: Yaron Grinwald, Peretz Ben-Avraham, Eyal Bechar, Yigal Berson, Stella Stolin Roditi, Merav Shapira, Peter Forgacs, Albert Teishev
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Publication number: 20110266347Abstract: 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: ApplicationFiled: December 30, 2008Publication date: November 3, 2011Inventors: Yaron Grinwald, Stella Stolin Roditi, Yigal Berson, Zhang-Lin Zhou, Gregg Alan Combs, Jeffrey Todd Mabeck, Albert Teishev
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Publication number: 20110261435Abstract: 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: ApplicationFiled: December 30, 2008Publication date: October 27, 2011Inventors: Yaron Grinwald, Stella Stolin Roditi, Yigal Berson, Zhang-Lin Zhou, Gregg Alan Combs, Jeffrey Todd Mabeck, Albert Teishev
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Patent number: 7977023Abstract: 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: GrantFiled: July 26, 2007Date of Patent: July 12, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stella Stolin Roditi, Albert Teishev
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Publication number: 20110123228Abstract: 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: ApplicationFiled: June 10, 2008Publication date: May 26, 2011Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.Inventors: Stella Stolin Roditi, Albert Teishev, Keren Regev, Yael Warman
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Publication number: 20110115867Abstract: 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: ApplicationFiled: July 17, 2008Publication date: May 19, 2011Inventors: Peter Forgacs, Neta Filip-Granit, Stella Stolin Roditi, David Levanon, Liat Szapiro, Yossi Mor, Mark Sandler, Itzhak Ashkenazi, Meir Soria, Marc Klein
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Publication number: 20090029273Abstract: 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: ApplicationFiled: July 26, 2007Publication date: January 29, 2009Inventors: Stella Stolin Roditi, Albert Teishev