Patents by Inventor Nava Klein
Nava Klein 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: 10072181Abstract: Briefly described, embodiments of this disclosure includes intermediate transfer members, primer layer materials, methods of forming an intermediate transfer member layers having a base and an acrylic rubber layer, are disclosed.Type: GrantFiled: July 25, 2006Date of Patent: September 11, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Meir Soria, Frida Avadic, Yevgenia Rudoy, Nava Klein
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Patent number: 9465323Abstract: According to an example, a liquid electrophotography printing (LEP) apparatus includes a fluid chamber to store fluid to be used to form an image and a filtration assembly to filter the fluid of the fluid chamber. The filtration assembly may store a filtration material to filter the fluid received from the fluid chamber and may provide the filtered fluid to the fluid chamber. The LEP apparatus may also include a detector assembly to detect a fluid parameter of the filtered fluid in the fluid chamber and a filtration adder unit to add a predetermined amount of the filtration material to the filtration assembly in response to a detection of the fluid parameter by the detector assembly.Type: GrantFiled: March 20, 2015Date of Patent: October 11, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Eyal Bachar, Kobi Shkuri, Elliad Silcoff, Yoram Sorek, Yossi Cohen, Nava Klein, Doron Schlumm
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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: 9239533Abstract: Disclosed is an electrostatic ink composition, comprising a single charge director and a charge control agent that counters the build up of negative optical density memory on the intermediate transfer member of a printing apparatus using the electrostatic ink.Type: GrantFiled: July 13, 2011Date of Patent: January 19, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Ilanit Mor, Basile Verdene, Albert Teishev, Roi Liraz, Yaron Grinwald, Nava Klein, Emad Masoud
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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: 20150198912Abstract: According to an example, a liquid electrophotography printing (LEP) apparatus includes a fluid chamber to store fluid to be used to form an image and a filtration assembly to filter the fluid of the fluid chamber. The filtration assembly may store a filtration material to filter the fluid received from the fluid chamber and may provide the filtered fluid to the fluid chamber. The LEP apparatus may also include a detector assembly to detect a fluid parameter of the filtered fluid in the fluid chamber and a filtration adder unit to add a predetermined amount of the filtration material to the filtration assembly in response to a detection of the fluid parameter by the detector assembly.Type: ApplicationFiled: March 20, 2015Publication date: July 16, 2015Inventors: Eyal BACHAR, Kobi SHKURI, Elliad SILCOFF, Yoram SOREK, Yossi COHEN, Nava KLEIN, Doron SCHLUMM
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Patent number: 9037046Abstract: A method of maintaining a photoconductive member of a liquid electrophotography printing apparatus (LEP) is disclosed. The method includes storing a fluid having at least fluid particles and a carrier liquid in a fluid chamber and removing at least a portion of the fluid particles and the dissolved materials from the fluid through adsorption by filtration material disposed within a filtration assembly to form a filtered fluid. The method also includes maintaining the photoconductive member by periodically applying the filtered fluid to the photoconductive member and removing the filtered fluid and fluid residue therefrom.Type: GrantFiled: January 21, 2011Date of Patent: May 19, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Eyal Bachar, Kobi Shkuri, Elliad Silcoff, Yoram Sorek, Yossi Cohen, Nava Klein, Doron Schlumm
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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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Patent number: 8983321Abstract: A method includes controlling a charge level of fluid in a fluid chamber by detecting at least one fluid parameter corresponding to a charge level of a fluid in a fluid chamber having at least charge directors and carrier liquid, and controlling the charge level of the fluid based on the detected fluid parameter.Type: GrantFiled: August 20, 2010Date of Patent: March 17, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Elliad Silcoff, Eyal Bachar, Kobi Shkuri, Nava Klein
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Patent number: 8974997Abstract: The present disclosure is drawn to LEP toners, systems, and methods of manufacturing LEP liquid toners. Specifically, a high NVS liquid toner can comprise a ground up admixture of a hydrocarbon carrier fluid, pigment particles, and a polymer paste having an NVS content of about 38 wt % to about 65 wt %. The resultant high NVS liquid toner has an NVS content of about 28 wt % to about 38 wt % and a viscosity of about 3,000 cPs to about 25,000 cPs.Type: GrantFiled: October 4, 2010Date of Patent: March 10, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Eyal Bachar, Swissa Shay, Yaron Grinwald, Merav Shapira, Albert Teishev, Nava Klein
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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: 20140147171Abstract: Disclosed is an electrostatic ink composition, comprising a single charge director and a charge control agent that counters the build up of negative optical density memory on the intermediate transfer member of a printing apparatus using the electrostatic ink.Type: ApplicationFiled: July 13, 2011Publication date: May 29, 2014Inventors: Ilanit Mor, Basile Verdene, Albert Teishev, Roi Liraz, Yaron Grinwald, Nava Klein, Emad Masoud
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Patent number: 8712298Abstract: At least a portion of an intermediate transfer member includes a release layer facing outwardly from and supported by a supportive portion. The release layer includes an inner layer and an outer layer over and in contact with the inner layer, The inner layer has a thickness of between about 1 ?m and about 8 ?m and a bulk swelling of between 120% and 350%. The outer layer has a thickness of less than about 5 ?m and a bulk swelling of less than 120%.Type: GrantFiled: August 17, 2009Date of Patent: April 29, 2014Assignee: Hewlett-Packard Indigo B.V.Inventors: Raia Slivniak-Zozin, Nava Klein, Fernanda Orlik, Naseem Yacoub, Oshra Raviv, Meir Soria
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Publication number: 20140105648Abstract: A method of maintaining a photoconductive member of a liquid electrophotography printing apparatus (LEP) is disclosed. The method includes storing a fluid having at least fluid particles and a carrier liquid in a fluid chamber and removing at least a portion of the fluid particles and the dissolved materials from the fluid through adsorption by filtration material disposed within a filtration assembly to form a filtered fluid. The method also includes maintaining the photoconductive member by periodically applying the filtered fluid to the photoconductive member and removing the filtered fluid and fluid residue therefrom.Type: ApplicationFiled: January 21, 2011Publication date: April 17, 2014Inventors: Eyal Bachar, Kobi Shkuri, Elliad Silcoff, Yoram Sorek, Yossi Cohen, Nava Klein, Doron Schlumm
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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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Publication number: 20130223887Abstract: The present disclosure is drawn to LEP toners, systems, and methods of manufacturing LEP liquid toners. Specifically, a high NVS liquid toner can comprise a ground up admixture of a hydrocarbon carrier fluid, pigment particles, and a polymer paste having an NVS content of about 38 wt % to about 65 wt %. The resultant high NVS liquid toner has an NVS content of about 28 wt % to about 38 wt % and a viscosity of about 3,000 cPs to about 25,000 cPs.Type: ApplicationFiled: October 4, 2010Publication date: August 29, 2013Applicant: Hewlett-Packard Development Company, L.P.Inventors: Eyal Bachar, Swissa Shay, Yaron Grinwald, Merav Shapira, Albert Teishev, Nava Klein
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Publication number: 20130148989Abstract: A method includes controlling a charge level of fluid in a fluid chamber by detecting at least one fluid parameter corresponding to a charge level of a fluid in a fluid chamber having at least charge directors and carrier liquid, and controlling the charge level of the fluid based on the detected fluid parameter.Type: ApplicationFiled: August 20, 2010Publication date: June 13, 2013Inventors: Elliad Silcoff, Eyal Bachar, Kobi Shkuri, Nava Klein
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Publication number: 20120134695Abstract: At least a portion of an intermediate transfer member (34) includes a release layer (50) facing outwardly from and supported by a supportive portion. The release layer (50) includes an inner layer (70) and an outer layer (72) over and in contact with the inner layer (70), The inner layer (70) has a thickness of between about 1 ?m and about 8 ?m and a bulk swelling of between 120% and 350%. The outer layer (72) has a thickness of less than about 5 ?m and a bulk swelling of less than 120%.Type: ApplicationFiled: August 17, 2009Publication date: May 31, 2012Applicant: HEWLETT-PACKARD INDIGO B.V.Inventors: Raia Slivniak-Zozin, Nava Klein, Fernanda Orlik, Naseem Yacoub, Oshra Raviv, Meir Soria
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Patent number: 8041275Abstract: An apparatus and method transfer imaging material using a release layer having a bulk swelling capacity between 120% and 145% in Isopar L.Type: GrantFiled: October 30, 2008Date of Patent: October 18, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Meir Soria, Nava Klein, Amiran Lavon, Yael Kowal, Yevgenia Rudoy