Patents by Inventor Alina Grishman
Alina Grishman 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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Publication number: 20220113647Abstract: Described herein is magenta ink composition, comprising a pigment consisting of one or more quinacridone pigments; a resin; and a polymeric amine dispersant having a Total Base Number of at least 300 mg KOH/gram. Also described herein is a method of printing comprising applying the magenta ink composition to a substrate, and a printed substrate comprising the magenta ink composition.Type: ApplicationFiled: June 6, 2019Publication date: April 14, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Gil Bar-Haim, David SAVELZON, Anna RAZGON, Asher GAMLIEL, Alina GRISHMAN, Shmuel BORENSTAIN
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Patent number: 10591839Abstract: 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: GrantFiled: July 28, 2016Date of Patent: March 17, 2020Assignee: HP Indigo B.V.Inventors: Gil Bar-Haim, Shiran Zabar, Danny Feldman, Alina Grishman, Albert Teishev
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Patent number: 10416585Abstract: Herein is disclosed an electrostatic ink composition, wherein the composition is formable by combining: chargeable particles comprising a resin comprising a polymer having acidic side groups, and a cyclic anhydride. Also disclosed herein is a method of forming an electrostatic ink composition, and a method of electrostatic printing.Type: GrantFiled: December 6, 2017Date of Patent: September 17, 2019Assignee: HP Indigo B.V.Inventors: Gil Bar-Haim, Alina Grishman
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Publication number: 20190119512Abstract: 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: ApplicationFiled: July 28, 2016Publication date: April 25, 2019Inventors: Gil Bar-Haim, Shiran Zabar, Danny Feldman, Alina Grishman, Albert Teishev
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Publication number: 20180307154Abstract: A magenta liquid electrostatic ink composition includes chargeable particles having a resin and a pigment; an insulating, non-polar, non-aqueous liquid carrier in which the chargeable particles are dispersed; and a charge director. The resin is formable from polymerizing alkylene monomers and methacrylic or acrylic acid monomers; the pigment is selected from pigment violet 19 type ?I, pigment violet 19 type ?II, pigment violet 19 type 1, pigment red 177, pigment red 208, and pigment violet 32; and the liquid electrostatic ink composition lacks any other types of pigment.Type: ApplicationFiled: June 29, 2018Publication date: October 25, 2018Inventors: Gil Bar-Haim, Alexey S. Kabalnov, Albert Teishev, Alina Grishman, Vladislav Kaploun, Danny Feldman, Eyal Bachar
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Patent number: 10042277Abstract: Herein is disclosed a magenta liquid electrostatic ink composition comprising chargeable particles comprising a resin, a pigment, a liquid carrier in which the chargeable particles are dispersed, and a charge director, wherein the resin is formable from polymerizing alkylene monomers and methacrylic or acrylic acid monomers, the pigment is selected from pigment violet 19 type ?I pigment violet 19 type ?II pigment violet 19 type ?, pigment violet 19 type ?, pigment red 177, pigment red 208, pigment red 122 and pigment violet 32, and the liquid electrostatic ink composition lacks any other types of pigment. Also disclosed herein is a method of electrostatic printing and a print substrate having printed thereon the magenta liquid electrostatic ink composition.Type: GrantFiled: June 9, 2014Date of Patent: August 7, 2018Assignee: HP Indigo B.V.Inventors: Gil Bar-Haim, Alexey S. Kabalnov, Albert Teishev, Alina Grishman, Vladislav Kaploun, Danny Feldman, Eyal Bachar
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Patent number: 10042276Abstract: Herein is disclosed an electrostatic ink composition, wherein the composition is formable by combining: chargeable particles comprising a resin, a charge director comprising a sulfosuccinate salt, and a non-polymeric, non-fatty acid having a pKa, when measured in water at 20° C., of at least 1. Also disclosed herein is a method of forming an electrostatic ink composition, and a method of electrostatic printing.Type: GrantFiled: April 30, 2014Date of Patent: August 7, 2018Assignee: HP Indigo B.V.Inventors: Gil Bar-Haim, Alina Grishman, Ilanit Mor, Albert Teishev
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Patent number: 10042278Abstract: Herein is disclosed a magenta liquid electrostatic ink composition comprising a carrier liquid; and ink particles comprising a resin, a magenta pigment and a black pigment, wherein the black pigment is present in the composition in an amount of 0.01 to 0.5 wt % by total solids of the composition.Type: GrantFiled: April 28, 2015Date of Patent: August 7, 2018Assignee: HP Indigo B.V.Inventors: Adi Vinegrad, Yaron Grinwald, Gil Bar-Haim, Mirta Perlman, Alina Grishman, Danny Feldman, Eyal Shelef
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Publication number: 20180120718Abstract: Herein is disclosed an electrostatic ink composition, wherein the composition is formable by combining: chargeable particles comprising a resin comprising a polymer having acidic side groups, and a cyclic anhydride. Also disclosed herein is a method of forming an electrostatic ink composition, and a method of electrostatic printing.Type: ApplicationFiled: December 6, 2017Publication date: May 3, 2018Applicant: HP Indigo B.V.Inventors: Gil Bar-Haim, Alina Grishman
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Patent number: 9921512Abstract: Herein is disclosed an electrostatic ink composition, wherein the composition is formable by combining: chargeable particles comprising a resin comprising a polymer having acidic side groups, and a cyclic anhydride. Also disclosed herein is a method of forming an electrostatic ink composition, and a method of electrostatic printing.Type: GrantFiled: January 30, 2014Date of Patent: March 20, 2018Assignee: HP Indigo B.V.Inventors: Gil Bar-Haim, Alina Grishman
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Publication number: 20180031995Abstract: Herein is disclosed a magenta liquid electrostatic ink composition comprising a carrier liquid; and ink particles comprising a resin, a magenta pigment and a black pigment, wherein the black pigment is present in the composition in an amount of 0.01 to 0.5 wt % by total solids of the composition.Type: ApplicationFiled: April 28, 2015Publication date: February 1, 2018Applicant: HP Indigo B.V.Inventors: Adi Vinegrad, Yaron Grinwald, Gil Bar-Haim, Mirta Perlman, Alina Grishman, Danny Feldman, Eyal Shelef
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Publication number: 20170146919Abstract: Herein is disclosed an electrostatic ink composition, wherein the composition is formable by combining: chargeable particles comprising a resin, a charge director comprising a sulfosuccinate salt, and a non-polymeric, non-fatty acid having a pKa, when measured in water at 20° C., of at least 1. Also disclosed herein is a method of forming an electrostatic ink composition, and a method of electrostatic printing.Type: ApplicationFiled: April 30, 2014Publication date: May 25, 2017Inventors: Gil Bar-Haim, Alina Grishman, Ilanit Mor, Albert Teishev
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Publication number: 20170146920Abstract: Herein is disclosed a magenta liquid electrostatic ink composition comprising chargeable particles comprising a resin, a pigment, a liquid carrier in which the chargeable particles are dispersed, and a charge director, wherein the resin is formable from polymerising alkylene monomers and methacrylic or acrylic acid monomers, the pigment is selected from pigment violet 19 type ?I pigment violet 19 type ?II pigment violet 19 type ?, pigment violet 19 type ?, pigment red 177, pigment red 208, pigment red 122 and pigment violet 32, and the liquid electrostatic ink composition lacks any other types of pigment. Also disclosed herein is a method of electrostatic printing and a print substrate having printed thereon the magenta liquid electrostatic ink composition.Type: ApplicationFiled: June 9, 2014Publication date: May 25, 2017Inventors: Gil Bar-Haim, Alexey S. Kabalnov, Albert Teishev, Alina Grishman, Vladislav Kaploun, Danny Feldman, Eyal Bachar
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Publication number: 20160342099Abstract: Herein is disclosed an electrostatic ink composition, wherein the composition is formable by combining: chargeable particles comprising a resin comprising a polymer having acidic side groups, and a cyclic anhydride. Also disclosed herein is a method of forming an electrostatic ink composition, and a method of electrostatic printing.Type: ApplicationFiled: January 30, 2014Publication date: November 24, 2016Applicant: Hewlett-Packard Indigo B.V.Inventors: Gil Bar-Haim, Alina Grishman
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Patent number: 9428655Abstract: Described herein is a method for electrostatic printing including: (i) providing an ink composition having: a hydrocarbon carrier liquid and particles includes a resin and a colorant, and wherein the ink composition contains less than 0.3 mg of charge director per g of solids in the ink composition; (ii) adding a charge director to the ink composition, such that the total amount of charge director in the ink composition is at least 0.6 mg per g of solids in the ink composition, and, (iii) within a predetermined time of adding the charge director, printing the ink onto a print medium in an electrostatic printing process, wherein the predetermined time is 90 minutes or less.Type: GrantFiled: January 16, 2012Date of Patent: August 30, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Gil Bar-Haim, Amir Ofir, Ilanit Mor, Alina Grishman, Albert Teishev
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Publication number: 20140320576Abstract: Described herein is a method for electrostatic printing comprising: (i) providing an ink composition comprising: a hydrocarbon carrier liquid and particles comprising a resin and a colorant, and wherein the ink composition contains less than 0.3 mg of charge director per g of solids in the ink composition; (ii) adding a charge director to the ink composition, such that the total amount of charge director in the ink composition is at least 0.6 mg per g of solids in the ink composition, and, (iii) within a predetermined time of adding the charge director, printing the ink onto a print medium in an electrostatic printing process, wherein the predetermined time is 90 minutes or less. Also described herein is a packaged ink composition, and method for producing it.Type: ApplicationFiled: January 16, 2012Publication date: October 30, 2014Inventors: Gil Bar-Haim, Amir Ofir, Ilanit Mor, Alina Grishman, Albert Teishev