Patents by Inventor Michael Kokotov
Michael Kokotov 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: 11860557Abstract: In an example, a print apparatus comprises an intermediate transfer member to receive thermoplastic print agent from a photoconductive surface, a rotatably mounted endless cleaning surface to receive a layer of thermoplastic print agent from the intermediate transfer member and a heater, to heat the endless cleaning surface. The endless cleaning surface may be to engage with the intermediate transfer member when heated to transfer residue from the intermediate transfer member to the layer of thermoplastic print agent on the endless cleaning surface.Type: GrantFiled: January 21, 2022Date of Patent: January 2, 2024Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Amir Kedem, Michael Kokotov, Elina Ploshnik, Guy Nesher, Alex Feygelman, Eran Shiran, Nadav Shalem, Chen Talmor
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Publication number: 20230118543Abstract: An intermediate transfer member for digital offset printing, comprising a cured silicone release layer formed by curing a curable silicone release formulation comprising a polyalkylsiloxane containing at least two vinyl groups; an at least partially fluorinated polyalkylsiloxane containing at least two vinyl groups; a polyalkylsiloxane cross-linker containing at least two Si-H bonds; and a catalyst or photoinitiator; wherein fluorine atoms provide at least 2.5 wt.% of the total weight of polyalkylsiloxane compounds. There is also described a method of producing an intermediate transfer member, and a curable silicone release formulation for an intermediate transfer member.Type: ApplicationFiled: April 1, 2020Publication date: April 20, 2023Inventors: Tony Azzam, Michael Kokotov, Edith Beilis, Sergey Inotaev
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Patent number: 11573507Abstract: In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.Type: GrantFiled: September 16, 2021Date of Patent: February 7, 2023Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Amir Kedem, Michael Kokotov, Alex Feygelman, Guy Nesher, Nadav Shalem, Michael Vinokur
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Publication number: 20220291605Abstract: An electrostatic printing method for forming a structured image on a print substrate, the method comprising: providing an electrostatic ink composition; contacting the electrostatic ink composition with a latent electrostatic image on a photoconductive surface to create a developed toner image; transferring the developed toner image to an embossed intermediate transfer member to create a structured toner image; and; transferring the structured toner image to a print substrate. The embossed intermediate transfer may comprise a substrate layer, at least part of which is compressible and comprises an electrically conductive species; and; an outer release layer disposed on the substrate layer, the outer release layer comprising a structured surface. Methods of making the embossed intermediate transfer member are also described herein.Type: ApplicationFiled: January 9, 2020Publication date: September 15, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Gideon AMIR, Tony AZZAM, Michael KOKOTOV
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Publication number: 20220206407Abstract: Described herein is a liquid electrostatic ink composition comprising a liquid carrier; and chargeable toner particles comprising a resin and an aluminium-based color-shifting pigment. Also described herein is a method of printing comprising: printing onto a substrate a liquid electrostatic ink composition comprising: a liquid carrier; and chargeable toner particles comprising a resin and an aluminium-based color-shifting pigment, and a printed article comprising a print substrate having printed thereon the electrostatic ink composition.Type: ApplicationFiled: July 31, 2019Publication date: June 30, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Olga Kagan, Vladislav KAPLOUN, Rada NUCHIMOV, Michael KOKOTOV, Yaron GRINWALD, Albert TEISHEV, Ofir BROS, Samer FARRAN
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Publication number: 20220146964Abstract: In an example, a print apparatus comprises an intermediate transfer member to receive thermoplastic print agent from a photoconductive surface, a rotatably mounted endless cleaning surface to receive a layer of thermoplastic print agent from the intermediate transfer member and a heater, to heat the endless cleaning surface. The endless cleaning surface may be to engage with the intermediate transfer member when heated to transfer residue from the intermediate transfer member to the layer of thermoplastic print agent on the endless cleaning surface.Type: ApplicationFiled: January 21, 2022Publication date: May 12, 2022Inventors: Amir Kedem, Michael Kokotov, Elina Ploshnik, Guy Nesher, Alex Feygelman, Eran Shiran, Nadav Shalem, Chen Talmor
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Patent number: 11320766Abstract: In an example, a print apparatus comprises an intermediate transfer member to receive thermoplastic print agent from a photoconductive surface, a rotatably mounted endless cleaning surface to receive a layer of thermoplastic print agent from the intermediate transfer member and a heater, to heat the endless cleaning surface. The endless cleaning surface may be to engage with the intermediate transfer member when heated to transfer residue from the intermediate transfer member to the layer of thermoplastic print agent on the endless cleaning surface.Type: GrantFiled: March 21, 2018Date of Patent: May 3, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Amir Kedem, Michael Kokotov, Elina Ploshnik, Guy Nesher, Alex Feygelman, Eran Shiran, Nadav Shalem, Chen Talmor
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Publication number: 20220004124Abstract: In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.Type: ApplicationFiled: September 16, 2021Publication date: January 6, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Amir Kedem, Michael Kokotov, Alex Feygelman, Guy Nesher, Nadav Shalem, Michael Vinokur
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Patent number: 11163247Abstract: In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.Type: GrantFiled: July 31, 2018Date of Patent: November 2, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Amir Kedem, Michael Kokotov, Alex Feygelman, Guy Nesher, Nadav Shalem, Michael Vinokur
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Publication number: 20210294245Abstract: In an example, a print apparatus comprises an intermediate transfer member to receive thermoplastic print agent from a photoconductive surface, a rotatably mounted endless cleaning surface to receive a layer of thermoplastic print agent from the intermediate transfer member and a heater, to heat the endless cleaning surface. The endless cleaning surface may be to engage with the intermediate transfer member when heated to transfer residue from the intermediate transfer member to the layer of thermoplastic print agent on the endless cleaning surface.Type: ApplicationFiled: March 21, 2018Publication date: September 23, 2021Inventors: Amir Kedem, Michael Kokotov, Elina Ploshnik, Guy Nesher, Alex Feygelman, Eran Shiran, Nadav Shalem, Chen Talmor
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Publication number: 20210232069Abstract: In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.Type: ApplicationFiled: July 31, 2018Publication date: July 29, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Amir Kedem, Michael Kokotov, Alex Feygelman, Guy Nesher, Nadav Shalem, Michael Vinokur
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Patent number: 11067922Abstract: The present disclosure relates to a method of producing an intermediate transfer blanket. The method includes spray-coating a blanket body with a release layer composition including a curable polysiloxane polymer and solid particles of an electrically conductive material. The blanket body is subjected to motion during spray-coating, such that the release layer composition is subjected to shear forces as it deposits on the blanket body.Type: GrantFiled: April 20, 2018Date of Patent: July 20, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Gidi Halaf, Ira Yudovin-Farber, Michael Kokotov, Dina Voloshin Firouz
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Publication number: 20200371454Abstract: The present disclosure relates to a method of producing an intermediate transfer blanket. The method includes spray-coating a blanket body with a release layer composition including a curable polysiloxane polymer and solid particles of an electrically conductive material. The blanket body is subjected to motion during spray-coating, such that the release layer composition is subjected to shear forces as it deposits on the blanket body.Type: ApplicationFiled: April 20, 2018Publication date: November 26, 2020Applicant: Hewlett-Packard Development Company, L.P.Inventors: Gidi HALAF, Ira YUDOVIN-FARBER, Michael KOKOTOV, Dina VOLOSHIN FIROUZ
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Patent number: 10761445Abstract: According to an example, a resin, a carrier liquid, and a pearlescent pigment may be mixed to form a liquid electrophotographic ink.Type: GrantFiled: March 24, 2016Date of Patent: September 1, 2020Assignee: HP Indigo B.V.Inventors: Olga Kagan, Emad Masoud, Yana Reznick, Rada Nuchimov, Danny Feldman, Haim Cohen, Shiran Zabar, Yaron Grinwald, Michael Kokotov
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Patent number: 10591840Abstract: A liquid electrophotographic (LEP) ink can include a liquid ink vehicle, a conductive toner including a conductive pigment and a polymeric binder, and a charge director. The liquid electrophotographic ink can have a conductivity of from 150 to 2000 picoSiemens.Type: GrantFiled: April 6, 2016Date of Patent: March 17, 2020Assignee: HP Indigo B.V.Inventors: Michael Kokotov, Gregory Katz, Yaron Grinwald, Pavel Sandik
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Publication number: 20200081364Abstract: Described herein is a method for priming a polymeric print substrate for subsequently receiving a liquid electrophotographic (LEP) ink in which a surface of a polymeric print substrate is coated with a first primer using an analogue printing technique and a second primer is digitally printed to the surface of the polymeric print substrate coated with the first primer.Type: ApplicationFiled: February 1, 2017Publication date: March 12, 2020Inventors: Hannoch Ron, Michael Kokotov, Yaron Hershman, Shani Maor
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Patent number: 10416583Abstract: The present disclosure is drawn to an electrostatic ink composition comprising a resin having a Mw of 10,000 or less and a conductive species. Also disclosed herein is a substrate on which is electrostatically printed a conductive trace, wherein the trace comprises a resin having a Mw of 10,000 or less and a conductive species. Further disclosed herein is a method of electrophotographic printing an electrostatic ink composition comprising a resin having a Mw of 10,000 or less and a conductive species.Type: GrantFiled: March 4, 2016Date of Patent: September 17, 2019Assignee: HP Indigo B.V.Inventors: Gregory Katz, Yaron Grinwald, Michael Kokotov, Regina Guslitzer
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Patent number: 10222719Abstract: A method of electro-photographic printing includes applying a background voltage to a photo imaging plate using a charge roller that moves relative to the photo imaging plate, and varying the applied background voltage as the roller moves relative to the photo imaging plate, wherein the background voltage is varied in a region of the photo imaging plate where no ink is to be transferred.Type: GrantFiled: October 29, 2015Date of Patent: March 5, 2019Assignee: HP INDIGO B.V.Inventors: Shmuel Borenstain, Michael Kokotov
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Publication number: 20190064690Abstract: A liquid electrophotographic (LEP) ink can include a liquid ink vehicle, a conductive toner including a conductive pigment and a polymeric binder, and a charge director. The liquid electrophotographic ink can have a conductivity of from 150 to 2000 picoSiemens.Type: ApplicationFiled: April 6, 2016Publication date: February 28, 2019Applicant: HP Indigo B.V.Inventors: Michael Kokotov, Gregory KATZ, Yaron GRINWALD, Pavel SANDIK
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Publication number: 20190033741Abstract: The present disclosure is drawn to an electrostatic ink composition comprising a resin having a Mw of 10,000 or less and a conductive species. Also disclosed herein is a substrate on which is electrostatically printed a conductive trace, wherein the trace comprises a resin having a Mw of 10,000 or less and a conductive species. Further disclosed herein is a method of electrophotographic printing an electrostatic ink composition comprising a resin having a Mw of 10,000 or less and a conductive species.Type: ApplicationFiled: March 4, 2016Publication date: January 31, 2019Inventors: Gregory Katz, Yaron Grinwald, Michael Kokotov, Regina Guslitzer