Patents by Inventor Eyal Shelef

Eyal Shelef 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).

  • REMOVABLE COMPOSITIONS AND METHODS OF USING SAME
    Publication number: 20230027961
    Abstract: A composition comprising a first layer in contact with at least one additional layer, wherein an outer surface of the composition is capable of binding a resin. Further, a building platform substrate comprising the composition of the invention, and a kit for releasing an object are provided.
    Type: Application
    Filed: December 17, 2020
    Publication date: January 26, 2023
    Inventors: Vered Italiano, Eyal Shelef, Jon Donner, Hotam Lezerovich, Katya Dlugach, Gal Milshtein, Tovit Neizer, Assaf Green
  • Ink composition
    Patent number: 10437167
    Abstract: Provided in one example herein is a liquid electrophotographic ink composition. The composition includes a charge director, a non-polar carrier fluid comprising a polymer; and ink particles each including a polymeric resin and a pigment dispersed in the resin. The ink composition also includes a tackifier.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: October 8, 2019
    Assignee: HP Indigo B.V.
    Inventors: Reut Avigdor, Tehila Ben-Ezra, Yael Kowal-Blau, Yaron Grinwald, Albert Teishev, Eyal Shelef
  • Electrophotographic composition
    Patent number: 10416584
    Abstract: This disclosure relates to a liquid electrophotographic composition comprising a thermoplastic polymer resin, a charge adjuvant, microspheres, and a liquid carrier. Each microsphere comprises a shell of material encapsulating a gas. The microspheres are present in an amount of 5 to 90 weight % of the total weight of solids in the composition.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 17, 2019
    Assignee: HP Indigo B.V.
    Inventors: Tony Azzam, Tehila Ben-Ezra, Regina Guslitzer, Reut Avigdor, Samer Farran, Yaron Grinwald, Roy Har-Tsvi, Eyal Shelef
  • Electrostatic ink composition
    Patent number: 10289018
    Abstract: Herein is described a liquid electrostatic ink composition comprising a pigment comprising mica coated with titanium dioxide and an additional metal oxide.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 14, 2019
    Assignee: HP Indigo B.V.
    Inventors: Emad Masoud, Regina Guslitzer, Anna Hen, Eyal Shelef
  • ELECTROPHOTOGRAPHIC COMPOSITION
    Publication number: 20190033743
    Abstract: This disclosure relates to a liquid electrophotographic composition comprising a thermoplastic polymer resin, a charge adjuvant, microspheres, and a liquid carrier. Each microsphere comprises a shell of material encapsulating a gas. The microspheres are present in an amount of 5 to 90 weight % of the total weight of solids in the composition.
    Type: Application
    Filed: March 4, 2016
    Publication date: January 31, 2019
    Inventors: Tony Azzam, Tehila Ben-Ezra, Regina Guslitzer, Reut Avigdor, Samer Farran, Yaron Grinwald, Roy Har-Tsvi, Eyal Shelef
  • To calibrate a printer
    Patent number: 10189270
    Abstract: An apparatus to calibrate a printer. The apparatus comprises a controller to: control deposition of white printing material on media, the white printing material having an opacity of at least 55%; control deposition of non-white printing material on the white printing material; receive data for at least one sensed characteristic of the non-white printing material; and calibrate the printer using the received data for the at least one sensed characteristic of the non-white printing material.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 29, 2019
    Assignee: HP Indigo B.V.
    Inventors: Ran Waidman, Sasi Moalem, Gregory Braverman, Eyal Shelef, Shlomo Harush
  • Liquid electrophotographic varnish composition
    Patent number: 10168629
    Abstract: A liquid electrophotographic varnish composition comprising: a polymer resin; an epoxy-based cross-linking agent; a solid catalyst comprising at least one amine group; and a carrier liquid.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: January 1, 2019
    Assignee: HP Indigo B.V.
    Inventors: Tony Azzam, Ilanit Mor, Samer Farran, Albert Teishev, Guy Nesher, Getahun Biadglin, Haim Cohen, Benjamin Dayan, Yael Kowal-Blau, Eyal Shelef
  • ELECTROSTATIC INK COMPOSITION
    Publication number: 20180314178
    Abstract: Herein is described a liquid electrostatic ink composition comprising a pigment comprising mica coated with titanium dioxide and an additional metal oxide.
    Type: Application
    Filed: December 11, 2015
    Publication date: November 1, 2018
    Inventors: Emad Masoud, Regina Guslitzer, Anna Hen, Eyal Shelef
  • ELECTROPHOTOGRAPHIC COMPOSITION
    Publication number: 20180231904
    Abstract: The present disclosure relates to an electrophotographic composition. The composition comprises composite particles comprising particles of wax dispersed in a matrix comprising an olefin polymer having acid and/or ester side groups. The wax has a melting point of at least 130 degrees C.
    Type: Application
    Filed: October 10, 2016
    Publication date: August 16, 2018
    Inventors: Tony Azzam, Ilanit Mor, Albert Teishev, Samer Farran, Getahun Biadglin, Haim Cohen, Guy Nesher, Igor Shutyi, Eyal Shelef
  • Electrostatic ink compositions
    Patent number: 10042278
    Abstract: 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: Grant
    Filed: April 28, 2015
    Date of Patent: August 7, 2018
    Assignee: HP Indigo B.V.
    Inventors: Adi Vinegrad, Yaron Grinwald, Gil Bar-Haim, Mirta Perlman, Alina Grishman, Danny Feldman, Eyal Shelef
  • INK COMPOSITION
    Publication number: 20180120725
    Abstract: Provided in one example herein is a liquid electrophotographic ink composition. The composition includes a charge director, a non-polar carrier fluid comprising a polymer; and ink particles each including a polymeric resin and a pigment dispersed in the resin. The ink composition also includes a tackifier.
    Type: Application
    Filed: July 31, 2015
    Publication date: May 3, 2018
    Inventors: Reut Avigdor, Tehila Ben-Ezra, Yael Kowal-Blau, Yaron Grinwald, Albert Teishev, Eyal Shelef
  • TO CALIBRATE A PRINTER
    Publication number: 20180111386
    Abstract: An apparatus to calibrate a printer. The apparatus comprises a controller to: control deposition of white printing material on media, the white printing material having an opacity of at least 55%; control deposition of non-white printing material on the white printing material; receive data for at least one sensed characteristic of the non-white printing material; and calibrate the printer using the received data for the at least one sensed characteristic of the non-white printing material.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 26, 2018
    Applicant: HP INDIGO B.V.
    Inventors: Ran Waidman, Sasi Moalem, Gregory Braverman, Eyal Shelef, Shlomo Harush
  • ELECTROSTATIC INK COMPOSITIONS
    Publication number: 20180031995
    Abstract: 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: Application
    Filed: April 28, 2015
    Publication date: February 1, 2018
    Applicant: HP Indigo B.V.
    Inventors: Adi Vinegrad, Yaron Grinwald, Gil Bar-Haim, Mirta Perlman, Alina Grishman, Danny Feldman, Eyal Shelef
  • To calibrate a printer
    Patent number: 9873261
    Abstract: An apparatus to calibrate a printer. The apparatus comprises a controller to: control deposition of white printing material on media, the white printing material having an opacity of at least 55%; control deposition of non-white printing material on the white printing material; receive data for at least one sensed characteristic of the non-white printing material; and calibrate the printer using the received data for the at least one sensed characteristic of the non-white printing material.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 23, 2018
    Assignee: HP Indigo B.V.
    Inventors: Ran Waidman, Sasi Moalem, Gregory Braverman, Eyal Shelef, Shlomo Harush
  • LIQUID ELECTROPHOTOGRAPHIC VARNISH COMPOSITION
    Publication number: 20180004104
    Abstract: A liquid electrophotographic varnish composition comprising: a polymer resin; an epoxy-based cross-linking agent; a solid catalyst comprising at least one amine group; and a carrier liquid.
    Type: Application
    Filed: January 19, 2015
    Publication date: January 4, 2018
    Inventors: Tony Azzam, Ilanit Mor, Samer Farran, Albert Teishev, Guy Nesher, Getahun Biadglin, Haim Cohen, Benjamin Dayan, Yael Kowal-Blau, Eyal Shelef
  • Printing with continuous color calibration
    Patent number: 9727015
    Abstract: Printing by determining target color values based on first color outputs, determining current color values based on current color outputs, and calculating color compensation values to compensate for a difference between the target color values and the current color values.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: August 8, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gal Amit, Tsafrir Yedid-Am, Eyal Shelef, Ran Waidman, Shlomo Harush
  • TO CALIBRATE A PRINTER
    Publication number: 20170043591
    Abstract: An apparatus to calibrate a printer. The apparatus comprises a controller to: control deposition of white printing material on media, the white printing material having an opacity of at least 55%; control deposition of non-white printing material on the white printing material; receive data for at least one sensed characteristic of the non-white printing material; and calibrate the printer using the received data for the at least one sensed characteristic of the non-white printing material.
    Type: Application
    Filed: April 25, 2014
    Publication date: February 16, 2017
    Inventors: Ran WAIDMAN, Sasi MOALEM, Gregory BRAVERMAN, Eyal SHELEF, Shlomo HARUSH
  • PRINTING WITH CONTINUOUS COLOR CALIBRATION
    Publication number: 20160252862
    Abstract: Printing by determining target color values based on first color outputs, determining current color values based on current color outputs, and calculating color compensation values to compensate a difference between the target color values and the current color values.
    Type: Application
    Filed: May 10, 2016
    Publication date: September 1, 2016
    Inventors: Gal Amit, Tsafrir Yedid-Am, Eyal Shelef, Ran Waidman, Shlomo Harush
  • Embossing media
    Patent number: 9038534
    Abstract: Apparatus for embossing media, the apparatus including cutter apparatus to cut a shape in a surface layer of a multi-layer substrate to form a die. The apparatus also includes an embosser to emboss the media using the die. The cutter apparatus is arranged to provide the die to the embosser.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 26, 2015
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Ziv Gilan, Gadi Oron, Elkan Jhirad, Eyal Shelef
  • Accurate printing of a target colour
    Patent number: 8902483
    Abstract: A method of accurately printing a target color is provided. The method comprises: in a first step measuring the light spectrum (106) of a first printed color sample (104), which has been printed with a first ink coverage; and from the measured light spectrum calculating a color discrepancy between the first printed color sample and the target color. The method further comprises in a second step calculating an improved ink coverage (112), and printing a second color sample with the improved ink coverage (104). The aforementioned steps are repeated until a predetermined condition for accuracy of the target color has been reached (110).
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: December 2, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michal Aharon, Eyal Shelef, Doron Shaked, Shlomo Harush, Tsafrir Yedid-Am