Patents by Inventor Jayanta C. Panditaratne

Jayanta C. Panditaratne 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).

  • Patent number: 10792944
    Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: October 6, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gary Tarver, Jayanta C. Panditaratne, Jason Cassidy Hower, Hua Tan, James Kearns
  • Publication number: 20200070553
    Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.
    Type: Application
    Filed: November 7, 2019
    Publication date: March 5, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Gary Tarver, Jayanta C. Panditaratne, Jason Cassidy Hower, Hua Tan, James Kearns
  • Patent number: 10525753
    Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: January 7, 2020
    Assignee: Hewlett-Packard Development Company L.P.
    Inventors: Gary Tarver, Jayanta C. Panditaratne, Jason Cassidy Hower, Hua Tan, James Kearns
  • Publication number: 20190111716
    Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 18, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Gary Tarver, Jayanta C. Panditaratne, Jason Cassidy Hower, Hua Tan, James Kearns
  • Patent number: 10179468
    Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: January 15, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gary Tarver, Jayanta C Panditaratne, Jason Cassidy Hower, Hua Tan, James Kearns
  • Patent number: 9676210
    Abstract: A printing system includes a media transport device to move a medium at a speed ranging from about 15.24 mpm to about 609.6 mpm. The system includes an ink applicator to apply ink on the medium, and a treatment applicator to apply a treatment composition (including liquid vehicle, polyvalent metal salt fixing agent, and latex resin having an acid number less than 20) before or after the ink is applied, to form a printed-on medium. The system further includes a heating system programmed to: i) dry the printed-on medium at a predetermined temperature for a reduced dwell time (from about 1 second to about 40 seconds); and ii) leave residual moisture in the printed-on medium for a predetermined time after the reduced dwell time. The residual moisture is at a level that is higher than an initial moisture content of the medium prior to treatment composition and ink application.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: June 13, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ali Emamjomeh, Jayanta C. Panditaratne, Radha Sen, Nathan Kazutoshi Denni, Donna M. Sirenski
  • Publication number: 20170072725
    Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.
    Type: Application
    Filed: March 14, 2014
    Publication date: March 16, 2017
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Gary Tarver, Jayanta C. Panditaratne, Jason Cassidy Hower, Hue Tan, James Kearns
  • Publication number: 20160159077
    Abstract: A printing system including a print engine, a drying module, and a heating module. The print engine applies printing fluid on media. The drying module dries the printing fluid and provides dried printing fluid. The heating module applies thermal energy to the dried printing fluid and transitions the dried printing fluid to a cured printing fluid that has improved durability versus the dried printing fluid.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 9, 2016
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jason Cassidy Hower, James Kearns, Gary Tarver, Ali Emamjomeh, Jayanta C. Panditaratne, Christopher Arend Toles, Tao Chen
  • Publication number: 20160144634
    Abstract: A printing system includes a media transport device to move a medium at a speed ranging from about 15.24 mpm to about 609.6 mpm. The system includes an ink applicator to apply ink on the medium, and a treatment applicator to apply a treatment composition (including liquid vehicle, polyvalent metal salt fixing agent, and latex resin having an acid number less than 20) before or after the ink is applied, to form a printed-on medium. The system further includes a heating system programmed to: i) dry the printed-on medium at a predetermined temperature for a reduced dwell time (from about 1 second to about 40 seconds); and ii) leave residual moisture in the printed-on medium for a predetermined time after the reduced dwell time. The residual moisture is at a level that is higher than an initial moisture content of the medium prior to treatment composition and ink application.
    Type: Application
    Filed: January 20, 2016
    Publication date: May 26, 2016
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Ali EMAMJOMEH, Jayanta C. PANDITARATNE, Radha SEN, Nathan Kazutoshi DENNI, Donna M. SIRENSKI
  • Patent number: 9272540
    Abstract: A printing system includes a media transport device to move a medium at a speed ranging from about 15.24 mpm to about 609.6 mpm. The system includes an ink applicator to apply ink on the medium, and a treatment applicator to apply a treatment composition (including liquid vehicle, polyvalent metal salt fixing agent, and latex resin having an acid number less than 20) before or after the ink is applied, to form a printed-on medium. The system further includes a heating system programmed to: i) dry the printed-on medium at a predetermined temperature for a reduced dwell time (from about 1 second to about 40 seconds); and ii) leave residual moisture in the printed-on medium for a predetermined time after the reduced dwell time. The residual moisture is at a level that is higher than an initial moisture content of the medium prior to treatment composition and ink application.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: March 1, 2016
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Ali Emamjomeh, Jayanta C. Panditaratne, Radha Sen, Nathan Kazutoshi Denni, Donna M. Sirenski
  • Publication number: 20140204158
    Abstract: A printing system includes a media transport device to move a medium at a speed ranging from about 15.24 mpm to about 609.6 mpm. The system includes an ink applicator to apply ink on the medium, and a treatment applicator to apply a treatment composition (including liquid vehicle, polyvalent metal salt fixing agent, and latex resin having an acid number less than 20) before or after the ink is applied, to form a printed-on medium. The system further includes a heating system programmed to: i) dry the printed-on medium at a predetermined temperature for a reduced dwell time (from about 1 second to about 40 seconds); and ii) leave residual moisture in the printed-on medium for a predetermined time after the reduced dwell time. The residual moisture is at a level that is higher than an initial moisture content of the medium prior to treatment composition and ink application.
    Type: Application
    Filed: August 17, 2011
    Publication date: July 24, 2014
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Ali Emamjomeh, Jayanta C. Panditaratne, Radha Sen, Nathan Kazutoshi Denni, Donna M. Sirenski