Patents by Inventor Zeharia Levi

Zeharia Levi 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).

  • FORCE ADJUSTMENT ARRANGEMENT
    Publication number: 20230126205
    Abstract: Disclosed is a liquid electrophotographic printing apparatus that comprises a developer roller, a cleaning member to contact the developer roller with a contact force and a force adjustment arrangement to adjust the contact force.
    Type: Application
    Filed: April 14, 2020
    Publication date: April 27, 2023
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Tal SHANI, Asaf SHOSHANI, Lavi COHEN, Zeharia LEVI
  • Ink transfer element
    Patent number: 9405232
    Abstract: An ink transfer element for a printing apparatus, the ink transfer element comprising a surface for transferring ink applied thereto to at least one further ink transfer element, wherein the surface is configured to, when an ink comprising pigment particles and a liquid vehicle is applied to the surface, at least partly separate the liquid vehicle from the pigment particles, through the surface. The ink transfer element further relates to printing apparatus and a method of printing.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 2, 2016
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Ziv Gilan, Michal Kalish, Zeharia Levi, David Levi
  • Ink Transfer Element
    Publication number: 20160124349
    Abstract: An ink transfer element for a printing apparatus, the ink transfer element comprising a surface for transferring ink applied thereto to at least one further ink transfer element, wherein the surface is configured to, when an ink comprising pigment particles and a liquid vehicle is applied to the surface, at least partly separate the liquid vehicle from the pigment particles, through the surface. The ink transfer element further relates to printing apparatus and a method of printing.
    Type: Application
    Filed: January 13, 2016
    Publication date: May 5, 2016
    Applicant: HEWLETT-PACKARD INDIGO B.V.
    Inventors: Ziv Gilan, Michal Kalish, Zeharia Levi, David Levi
  • Calculating the optical density of a fluid traveling through a gap
    Patent number: 9285315
    Abstract: A method and apparatus to calculate the optical density of a fluid (110) traveling through a narrow gap (30) with a set width. Typically, a densitometer employs a light source (10) that is configured to transmit light across the gap and a detector, opposite the light source (10), configured to detect light transmitted from the light source, across the gap, for calculating the optical density of the fluid. The apparatus and method further include a transparent element (120), the transparent element part of a set of replaceable transparent elements, each replaceable transparent element having a particular width, the width less than the width of the gap. Typically, the transparent element is moved into the gap between the light source and the detector to narrow the effective sampling width of the gap for calculating the optical density of the fluid. In some examples, the transparent element is further configured to rotate in the gap to enhance the flow of the fluid through the gap.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 15, 2016
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Ziv Gilan, Zvi Shemer, Zeharia Levi, Erez Lampert, Niv Shemtov
  • Ink transfer element
    Patent number: 9248641
    Abstract: An ink transfer element for a printing apparatus, the ink transfer element comprising a surface for transferring ink applied thereto to at least one further ink transfer element, wherein the surface is configured to, when an ink comprising pigment particles and a liquid vehicle is applied to the surface, at least partly separate the liquid vehicle from the pigment particles, through the surface. The ink transfer element further relates to printing apparatus and a method of printing.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: February 2, 2016
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Ziv Gilan, Michal Kalish, Zeharia Levi, David Levi
  • Ink Transfer Element
    Publication number: 20150298453
    Abstract: An ink transfer element for a printing apparatus, the ink transfer element comprising a surface for transferring ink applied thereto to at least one further ink transfer element, wherein the surface is configured to, when an ink comprising pigment particles and a liquid vehicle is applied to the surface, at least partly separate the liquid vehicle from the pigment particles, through the surface. The ink transfer element further relates to printing apparatus and a method of printing.
    Type: Application
    Filed: November 23, 2012
    Publication date: October 22, 2015
    Inventors: Ziv Gilan, Michal Kalish, Zeharia Levi, David Levi
  • CALCULATING THE OPTICAL DENSITY OF A FLUID TRAVELING THROUGH A GAP
    Publication number: 20140375997
    Abstract: A method and apparatus to calculate the optical density of a fluid (110) traveling through a narrow gap (30) with a set width. Typically, a densitometer employs a light source (10) that is configured to transmit light across the gap and a detector, opposite the light source (10), configured to detect light transmitted from the light source, across the gap, for calculating the optical density of the fluid. The apparatus and method further include a transparent element (120), the transparent element part of a set of replaceable transparent elements, each replaceable transparent element having a particular width, the width less than the width of the gap. Typically, the transparent element is moved into the gap between the light source and the detector to narrow the effective sampling width of the gap for calculating the optical density of the fluid. In some examples, the transparent element is further configured to rotate in the gap to enhance the flow of the fluid through the gap.
    Type: Application
    Filed: February 8, 2012
    Publication date: December 25, 2014
    Applicant: HEWLETT-PACKARD INDIGO B.V.
    Inventors: Ziv Gilan, Zvi Shemer, Zeharia Levi, Erez Lampert, Niv Shemtov