Patents by Inventor Mandakini Kanungo

Mandakini Kanungo 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).

  • Publication number: 20200282718
    Abstract: A print system and a method for confirming complete curing of a marking material are disclosed. For example, the print system includes a plurality of printheads arranged in a two-dimensional array, a curing light source, a curing confirmation system, a movable member to hold an object and a controller to control movement of the movable member to move the object past the array of printheads, to operate the plurality of printheads to eject the marking material onto the object as the object passes the two-dimensional array of printheads, to operate the curing light source to cure the marking material and to operate the curing confirmation system to confirm that the curing of the marking material is complete.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 10, 2020
    Inventors: Anthony S. Condello, Jack T. LeStrange, Peter J. Knausdorf, Mandakini Kanungo, Xin Yang
  • Patent number: 10759188
    Abstract: A surface treatment system includes a holder configured to secure an object within the holder and a plurality of surface treatment devices. Each surface treatment device is configured to treat a surface of the object within the holder differently than each of the other surface treatment devices in the plurality of surface treatment devices. A controller is configured to operate the surface treatment devices independently of one another so less than all of the devices can be operated to treat an object surface. Thus, the surface treatment system is capable of treating a wide range of materials for printing by a direct-to-object printer.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: September 1, 2020
    Assignee: Xerox Corporation
    Inventors: Jack T. LeStrange, Anthony S. Condello, Mandakini Kanungo, Peter J. Knausdorf
  • Patent number: 10744792
    Abstract: A system for printing on a multi-dimensional object includes a plurality of print heads, and a printing chase comprising one or more alignment elements configured to provide accurate registration of an object holder (also configured as an object packaging) relative to the print heads. The system further includes an actuator configured to move the printing chase relative to the print heads. The system is configured to receive information corresponding to an alignment element that is employed for positioning the object holder on the printing chase, determine a position a printable area using the retrieved information, receive information relating to print data to be printed on the printable area, use the determined position of the printable area to control a movement of the printing chase relative to the print heads, and operate the print heads to eject marking material onto the printable area to print data on the printable area.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: August 18, 2020
    Assignee: Xerox Corporation
    Inventors: Anthony S. Condello, Peter J. Knausdorf, Jack T. LeStrange, Mandakini Kanungo, Xin Yang
  • Publication number: 20200227277
    Abstract: A method of forming an article, comprising: forming an adhesion layer comprising MnOx on a glass, glass-ceramic or ceramic wafer; calcining the adhesion layer such that a first portion of the MnOx of the adhesion layer is chemically bonded to the wafer; depositing a metal layer on the adhesion layer; and processing the metal layer and the adhesion layer such that a portion of the MnOx of the adhesion layer is chemically bonded to the metal layer.
    Type: Application
    Filed: December 17, 2019
    Publication date: July 16, 2020
    Inventors: Philip Simon Brown, Yunfeng Gu, Mandakini Kanungo, Prantik Mazumder, Rajesh Vaddi
  • Patent number: 10710367
    Abstract: The present teachings describe a printhead assembly. The printhead assembly includes a first plate and a second plate stacked together. The printhead assembly includes a first adhesive between the first plate and the second plate for bonding the plates together. The printhead assembly includes a second adhesive surrounding an outer edge of the first adhesive wherein the second adhesive has an oxygen migration rate lower than an oxygen migration rate of the first adhesive. An oxygen sensitive component is contained within the outer edge of the first adhesive.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 14, 2020
    Assignee: Xerox Corporation
    Inventors: Pratima Gattu Naga Rao, Sean Campbell Hunter, Christopher Jon Laharty, Jonathan Robert Brick, John Milton Brookfield, Tony Russell Rogers, Michael Joel Edwards, Hong Zhao, Mandakini Kanungo, Yanjia Zuo, Daniel R. Hahn, Santokh S. Badesha, John R. Andrews
  • Publication number: 20200197976
    Abstract: A system treats uneven surfaces of additive manufactured objects to improve the transparency and glossiness of the surfaces. The system operates an actuator to dip the additive manufactured object into a bath of fluid material that is the same as the material used to form the uneven surface to smooth the surface of the object and operates a sprayer to apply another fluid material to a surface of the object that is identified as being rougher based on the object's geometric data. A heater is provided to dry non-UV curable material applied to the object and a source of UV radiation is provided to cure UV curable material applied to the object.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 25, 2020
    Inventors: Ron E. Dufort, Linn C. Hoover, Erwin Ruiz, Mandakini Kanungo
  • Patent number: 10688773
    Abstract: A print system and a method for confirming complete curing of a marking material are disclosed. For example, the print system includes a plurality of printheads arranged in a two-dimensional array, a curing light source, a curing confirmation system, a movable member to hold an object and a controller to control movement of the movable member to move the object past the array of printheads, to operate the plurality of printheads to eject the marking material onto the object as the object passes the two-dimensional array of printheads, to operate the curing light source to cure the marking material and to operate the curing confirmation system to confirm that the curing of the marking material is complete.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: June 23, 2020
    Assignee: Xerox Corporation
    Inventors: Anthony S. Condello, Jack T. LeStrange, Peter J. Knausdorf, Mandakini Kanungo, Xin Yang
  • Patent number: 10688809
    Abstract: A printer includes an ultraviolet (UV) curing device having UV light emitting diodes (LEDs) to cure UV curable inks ejected onto a surface after the surface travels past a plurality of printheads in the printer. A UV detector having UV sensors is positioned opposite the UV curing device so the UV sensors and UV LEDs are opposite one another in a one-to-one correspondence. A controller operates the UV curing device to direct UV light into the UV detector and receives electrical signals generated by the UV sensors. The controller compares these electrical signals to a predetermined threshold to identify defective LEDs in the UV curing device. The controller then determines how to move the UV curing device across the path of the surface to irradiate areas of the surface previously opposite the defective UV LEDs.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: June 23, 2020
    Assignee: Xerox Corporation
    Inventors: Anthony S. Condello, Jack T. LeStrange, Xin Yang, Mandakini Kanungo, Peter J. Knausdorf
  • Publication number: 20200192023
    Abstract: A high-density optical fiber ribbon is formed by two or more cladding-strengthened glass optical fibers each having an outer surface and that do not individually include a protective polymer coating. A common protective coating substantially surrounds the outer surfaces of the two or more cladding-strengthened glass optical fibers so that the common protective coating is common to the two or more cladding-strengthened glass optical fibers. A fiber ribbon cable is formed by adding a cover assembly to the fiber ribbon. A fiber ribbon interconnect is formed adding one or more optical connectors to the fiber ribbon or fiber ribbon cable. Optical data transmission systems that employ the fiber ribbon to optically connect to a photonic device are also disclosed. Methods of forming the cladding-strengthened glass optical fibers and the high-density optical fiber ribbons are also disclosed.
    Type: Application
    Filed: November 15, 2019
    Publication date: June 18, 2020
    Inventors: Philip Simon Brown, Matthew Ryan Drake, Richard Michael Fiacco, Mandakini Kanungo, Ming-Jun Li, Jeffery Scott Stone, Qi Wu, Haitao Zhang
  • Publication number: 20200165160
    Abstract: According to various embodiments described herein, an article comprises a glass or glass-ceramic substrate having a first major surface and a second major surface opposite the first major surface, and a via extending through the substrate from the first major surface to the second major surface over an axial length in an axial direction. The article further comprises a helium hermetic adhesion layer disposed on the interior surface; and a metal connector disposed within the via, wherein the metal connector is adhered to the helium hermetic adhesion layer. The metal connector coats the interior surface of the via along the axial length of the via to define a first cavity from the first major surface to a first cavity length, the metal connector comprising a coating thickness of less than 12 ?m at the first major surface.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: Mandakini Kanungo, Prantik Mazumder, Chukwudi Azubuike Okoro, Ah-Young Park, Scott Christopher Pollard, Rajesh Vaddi
  • Patent number: 10625292
    Abstract: A system treats uneven surfaces of additive manufactured objects to improve the transparency and glossiness of the surfaces. The system operates a sprayer to apply fluid material used to form the uneven surface to the uneven surface to smooth the surface or the system operates an actuator to dip the additive manufactured object into a bath of fluid material that is the same as the material used to form the uneven surface to smooth the surface. A heater is provided to dry non-UV curable material applied to the uneven surface and a source of UV radiation is provided to cure UV curable material applied to the uneven surface.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: April 21, 2020
    Assignee: Xerox Corporation
    Inventors: Ron E. Dufort, Linn C. Hoover, Erwin Ruiz, Mandakini Kanungo
  • Patent number: 10604594
    Abstract: A method for evaluating curing in an ink composition comprises depositing an ink composition on the surface of an object via a direct-to-object inkjet printing system to form a film thereon, the ink composition comprising a photoinitiator capable of initiating a free radical polymerization process in the ink composition upon the absorption of light to cure the deposited film; exposing, in-situ, the deposited film to light generated by a first source of light under conditions which initiate the free radical polymerization process to cure the deposited film; exposing, in-situ, the cured film to light generated by a second source of light under conditions which induce light absorption by unreacted photoinitiator in the cured film; measuring the absorbance of the cured film; and determining a degree of cure in the cured film from the measured absorbance and predetermined calibration data.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: March 31, 2020
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Jack T. LeStrange, Peter Knausdorf, Xin Yang, Anthony S. Condello
  • Patent number: 10576754
    Abstract: A direct-to-object printer includes an ultraviolet (UV) curing verification subsystem. The verification subsystem includes a ribbon that frictionally engages an image on an object that contains UV curable material. An imaging device generates image data of the ribbon that engaged the image and the image data is processed to determine whether any uncured UV material is present on the ribbon.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: March 3, 2020
    Assignee: Xerox Corporation
    Inventors: Peter J. Knausdorf, Jack T. LeStrange, Anthony S. Condello, Mandakini Kanungo, Xin Yang
  • Publication number: 20200002224
    Abstract: A method of making a glass article, for example a glass light guide plate comprising at least one structured surface including a plurality of channels and peaks. The glass article may be suitable for enabling one dimensional dimming when used in a backlight unit for use as an illuminator for liquid crystal display devices.
    Type: Application
    Filed: February 15, 2018
    Publication date: January 2, 2020
    Inventors: Tracie Lynne Carleton, Leonard Charles Dabich, II, David Alan Deneka, Mandakini Kanungo, Shenping Li, Xiang-Dong Mi, Mark Alejandro Quesada, Wageesha Senaratne, John Charles Speeckaert, Louis Joseph Stempin, Jr., Wanda Janina Walczak, Haregewine Tadesse Woldegiworgis
  • Publication number: 20190363010
    Abstract: A method for bonding a conductive metal to an oxide substrate includes applying a porous coating to a surface of the oxide substrate, the porous coating including a porous oxide and catalyst nanoparticles dispersed therein, and depositing a conductive metal onto the porous coating. A portion of the conductive metal may be deposited within the pores of the porous coating to couple the conductive metal to the porous coating. Articles are also disclosed that include the oxide substrate, the porous coating coupled to a surface of the oxide substrate, and the conductive metal coupled to the porous coating. The porous coating may include a porous oxide and catalyst nanoparticles dispersed within the metal oxide. A portion of the conductive metal may be deposited within the pores of the porous coating to interlock the conductive metal to the porous coating.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 28, 2019
    Inventors: Philip Simon Brown, Yunfeng Gu, Mandakini Kanungo, Prantik Mazumder, Rajesh Vaddi
  • Publication number: 20190344588
    Abstract: A system for printing at least one stretchable ink on a thermoformable substrate including a first surface and a second surface opposite the first surface. The system includes an unwinder, a printing module and a rewinder. The unwinder is arranged to feed the thermoformable substrate from a first roll into a printing module. The printing module includes a flood coater arranged to deposit a coating layer on the first surface of the thermoformable substrate. The rewinder is arranged to receive the thermoformable substrate and to form the thermoformable substrate into a second roll.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: Xin YANG, Mandakini KANUNGO, Peter KNAUSDORF, Anthony Salvatore CONDELLO, Jack Thomas LESTRANGE
  • Publication number: 20190322098
    Abstract: An apparatus and method of manufacturing a fluorosilicone composite for a variable data lithography imaging member surface layer. Examples of the fluorosilicone composite include a first part and a second part, the first part having fluorosilicone, carbon black, silica and butyl acetate, the second part having a platinum catalyst, a crosslinker, butyl acetate and an inhibitor. The first part may also include a dispersant (e.g., a polyoxyalkylene amine derivative) that removes a need for shaking the dispersion by paint shaker and instead allows a more manufacture friendly roll ball milling process. The dispersant will also help in stabilizing the fluorosilicone composite for scaled up production.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: Santokh S. BADESHA, Mandakini KANUNGO, Kevin H. TAFT, Yu QI, Chenyu LIN
  • Publication number: 20190322772
    Abstract: A method for evaluating curing in an ink composition comprises depositing an ink composition on the surface of an object via a direct-to-object inkjet printing system to form a film thereon, the ink composition comprising a photoinitiator capable of initiating a free radical polymerization process in the ink composition upon the absorption of light to cure the deposited film; exposing, in-situ, the deposited film to light generated by a first source of light under conditions which initiate the free radical polymerization process to cure the deposited film; exposing, in-situ, the cured film to light generated by a second source of light under conditions which induce light absorption by unreacted photoinitiator in the cured film; measuring the absorbance of the cured film; and determining a degree of cure in the cured film from the measured absorbance and predetermined calibration data.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 24, 2019
    Inventors: Mandakini Kanungo, Jack T. LeStrange, Peter Knausdorf, Xin Yang, Anthony S. Condello
  • Publication number: 20190313524
    Abstract: An article includes a glass or glass-ceramic substrate having a first major surface and a second major surface opposite the first major surface, and at least one via extending through the substrate from the first major surface to the second major surface over an axial length in an axial dimension. The article also includes a metal connector disposed within the via that hermetically seals the via. The article has a helium hermeticity of less than or equal to 1.0×10?8 atm-cc/s after 1000 thermal shock cycles, each of the thermal shock cycle comprises cooling the article to a temperature of ?40° C. and heating the article to a temperature of 125° C., and the article has a helium hermeticity of less than or equal to 1.0×10?8 atm-cc/s after 100 hours of HAST at a temperature of 130° C. and a relative humidity of 85%.
    Type: Application
    Filed: April 5, 2019
    Publication date: October 10, 2019
    Inventors: Tian Huang, Mandakini Kanungo, Ekaterina Kuksenkova, Prantik Mazumder, Chad Byron Moore, Chukwudi Azubuike Okoro, Ah-Young Park, Scott Christopher Pollard, Rajesh Vaddi
  • Publication number: 20190283454
    Abstract: A system for printing on a multi-dimensional object includes a plurality of print heads, and a printing chase comprising one or more alignment elements configured to provide accurate registration of an object holder (also configured as an object packaging) relative to the print heads. The system further includes an actuator configured to move the printing chase relative to the print heads. The system is configured to receive information corresponding to an alignment element that is employed for positioning the object holder on the printing chase, determine a position a printable area using the retrieved information, receive information relating to print data to be printed on the printable area, use the determined position of the printable area to control a movement of the printing chase relative to the print heads, and operate the print heads to eject marking material onto the printable area to print data on the printable area.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Inventors: Anthony S. Condello, Peter J. Knausdorf, Jack T. LeStrange, Mandakini Kanungo, Xin Yang