Patents by Inventor Suresh Sunderrajan

Suresh Sunderrajan 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: 6790483
    Abstract: A method produces patterned deposition on a substrate (14) from compressed fluid. A delivery system (12) cooperates with a controlled environment (30, 100, 200) retaining a substrate (14) for receiving precipitated functional material 44 along a fluid delivery path (13) from the delivery system (12). A mask (22) is arranged in close proximity to the substrate (14) for forming the patterned deposition on the substrate (14).
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: September 14, 2004
    Assignee: Eastman Kodak Company
    Inventors: Ramesh Jagannathan, Suresh Sunderrajan, Seshadri Jagannathan, Glen C. Irvin, Jr., Sridhar Sadasivan, David J. Nelson, Rajesh V. Mehta, John E. Rueping
  • Patent number: 6780249
    Abstract: A system (10) produces patterned deposition on a substrate (14) from supercritical fluids. A delivery system (12) cooperates with a partial enclosure environment (30, 100, 200) retaining a movable substrate (14) for receiving precipitated functional material (44) along a fluid delivery path (13) from the delivery system (12). A shadow mask (22) is arranged in close proximity to the movable substrate (14) for forming the patterned deposition on the movable substrate (14).
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: August 24, 2004
    Assignee: Eastman Kodak Company
    Inventors: David J. Nelson, Suresh Sunderrajan, Ramesh Jagannathan, Seshadri Jagannathan, Glen C. Irvin, Jr., Sridhar Sadasivan, Rajesh V. Mehta, John E. Rueping
  • Publication number: 20040151889
    Abstract: A method of forming a sheet comprising extruding a polymer material comprising an incompatible material and a foaming agent, cooling the extruded material, stretching said extruded material in at least one direction.
    Type: Application
    Filed: August 29, 2003
    Publication date: August 5, 2004
    Inventors: Suresh Sunderrajan, Narasimharao Dontula, Thaddeus S. Gula, William A. Mruk, Sandra J. Dagan, Peter T. Aylward, Richard D. Bomba, Terry A. Heath, Edward A. Colombo
  • Patent number: 6762003
    Abstract: The present invention relates to an imaging member comprising an imaging layer and at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin. The invention further describes a method for making the imaging member, comprising extruding a foam polymer sheet, orienting the foam polymer sheet, bringing a stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the oriented foam polymer sheet, and applying an imaging layer above the stiffening layer. A second method of forming an imaging member comprises extruding a foam polymer sheet, bringing at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the foam polymer sheet, orienting said foam polymer sheet and said stiffening layer and applying an imaging layer above said stiffening layer.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: July 13, 2004
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Narasimharao Dontula, Peter T. Aylward, Nicholas I. Phippen
  • Patent number: 6752484
    Abstract: An apparatus and method of delivering a functional material is provided. The apparatus includes a pressurized source of fluid in a thermodynamically stable mixture with a functional material. A discharge device having an inlet and an outlet is connected to the pressurized source at the inlet. The discharge device is shaped to produce a collimated beam of functional material, where the fluid is in a gaseous state at a location before or beyond the outlet of the discharge device. A beam control device is positioned proximate to the outlet of the discharge device such that the collimated beam of functional material is controlled after the collimated beam of functional material moves through the outlet of the discharge device.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: June 22, 2004
    Assignee: Eastman Kodak Company
    Inventors: Ramesh Jagannathan, Glen C. Irvin, Jr., Seshadri Jagannathan, Sridhar Sadasivan, Suresh Sunderrajan, John E. Rueping, Gary E. Merz
  • Publication number: 20040108060
    Abstract: A system (10) produces patterned deposition on a substrate (14) from compressed fluids. A delivery system (12) cooperates with a controlled environment (30, 100, 200) retaining a substrate (14) for receiving precipitated functional material (44) along a fluid delivery path (13) from the delivery system (12). A mask (22) is arranged in close proximity to the substrate (14) for forming the patterned deposition on the substrate (14).
    Type: Application
    Filed: December 6, 2002
    Publication date: June 10, 2004
    Applicant: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, David J. Nelson, Ramesh Jagannathan, Seshadri Jagannathan, Glen C. Irvin, Sridhar Sadasivan, Rajesh V. Mehta, John E. Rueping
  • Publication number: 20040107903
    Abstract: A system (10) produces patterned deposition on a substrate (14) from supercritical fluids. A delivery system (12) cooperates with a partial enclosure environment (30, 100, 200) retaining a movable substrate (14) for receiving precipitated functional material (44) along a fluid delivery path (13) from the delivery system (12). A shadow mask (22) is arranged in close proximity to the movable substrate (14) for forming the patterned deposition on the movable substrate (14).
    Type: Application
    Filed: December 6, 2002
    Publication date: June 10, 2004
    Applicant: Eastman Kodak Company
    Inventors: David J. Nelson, Suresh Sunderrajan, Ramesh Jagannathan, Seshadri Jagannathan, Glen C. Irvin, Sridhar Sadasivan, Rajesh V. Mehta, John E. Rueping
  • Publication number: 20040109049
    Abstract: A system (10) produces patterned deposition on a substrate (14) from compressed fluids. A delivery system (12) cooperates with an independently controlled first chamber and an independently controlled second chamber retaining a substrate (14) for receiving precipitated functional material along a fluid flow delivery (13) from the delivery system (12). A shadow mask (22) is arranged in close proximity to the substrate (14) for forming the patterned deposition on the substrate (14).
    Type: Application
    Filed: December 6, 2002
    Publication date: June 10, 2004
    Applicant: Eastman Kodak Company
    Inventors: David J. Nelson, Suresh Sunderrajan, Ramesh Jagannathan, Seshadri Jagannathan, Glen C. Irvin, Sridhar Sadasivan, Rajesh V. Mehta, John E. Rueping
  • Publication number: 20040109952
    Abstract: A method produces patterned deposition on a substrate (14) from compressed fluid. A delivery system (12) cooperates with a controlled environment (30, 100, 200) retaining a substrate (14) for receiving precipitated functional material 44 along a fluid delivery path (13) from the delivery system (12). A mask (22) is arranged in close proximity to the substrate (14) for forming the patterned deposition on the substrate (14).
    Type: Application
    Filed: December 6, 2002
    Publication date: June 10, 2004
    Applicant: Eastman Kodak Company
    Inventors: Ramesh Jagannathan, Suresh Sunderrajan, Seshadri Jagannathan, Glen C. Irvin, Sridhar Sadasivan, David J. Nelson, Rajesh V. Mehta, John E. Rueping
  • Publication number: 20040108061
    Abstract: A method and an apparatus for making a light emitting display is provided. The apparatus includes a discharge device with an inlet and an outlet with the portion of the discharge device defining a delivery path. An actuating mechanism is moveably positioned along the delivery path. A substrate retaining device is positioned spaced apart from the outlet of the discharge device in the delivery path. The inlet of the discharge device is adapted to be connected to a pressurized source of a thermodynamically stable mixture of a compressed fluid and one of a hole transporting material, a light emitting material, and an electron transporting material. The compressed fluid is in a gaseous state at a location beyond the outlet of the discharge device and prior to the substrate retaining device.
    Type: Application
    Filed: December 6, 2002
    Publication date: June 10, 2004
    Applicant: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Ramesh Jagannathan, Seshadri Jagannathan, Suresh Sunderrajan, David J. Nelson, Glen C. Irvin, Rajesh V. Mehta
  • Publication number: 20040043138
    Abstract: A method is taught for forming a layer of electroluminescent material having a controlled thickness and surface uniformity. An electroluminescent material is delivered to a vessel. A fluid to the vessel is also delivered to the vessel. The fluid and the electroluminescent material in the vessel are compressed and heated to form a thermodynamically stable or metastable mixture. The thermodynamically stable or metastable mixture is sprayed at a surface, the fluid vaporizing during spraying with the the electroluminescent material being deposited as a light emitting layer of nanoparticulates on the surface.
    Type: Application
    Filed: August 21, 2002
    Publication date: March 4, 2004
    Inventors: Ramesh Jagannathan, Suresh Sunderrajan, Seshadri Jagannathan, Glen C. Irvin, John E. Rueping, Sridhar Sadasivan, Gary E. Merz, David J. Nelson
  • Publication number: 20040043140
    Abstract: A method is taught for forming a layer of polymeric electroluminescent material having a controlled thickness and surface uniformity. A polymeric electroluminescent material is delivered to a vessel. A fluid to the vessel is also delivered to the vessel. The fluid and the polymeric electroluminescent material in the vessel are compressed and heated to form a thermodynamically stable or metastable mixture. The thermodynamically stable or metastable mixture is sprayed at a surface, the fluid vaporizing during spraying with the the polymeric electroluminescent material being deposited as a light emitting layer on the surface.
    Type: Application
    Filed: November 20, 2002
    Publication date: March 4, 2004
    Inventors: Ramesh Jagannathan, Suresh Sunderrajan, Seshadri Jagannathan, Glen C. Irvin, John E. Rueping, Sridhar Sadasivan, Gary E. Merz, David J. Nelson
  • Patent number: 6695980
    Abstract: An imaging composition comprises a mixture of a fluid and a functional material; wherein the fluid is compressed and the functional material is an electroluminescent material which is dissolved, dispersed and/or solubilized in the compressed fluid; and wherein the mixture is thermodynamically stable or thermodynamically metastable or both.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: February 24, 2004
    Assignee: Eastman Kodak Company
    Inventors: Glen C. Irvin, Sridhar Sadasivan, Ramesh Jagannathan, Seshadri Jagannathan, Suresh Sunderrajan, Rajesh V. Mehta
  • Patent number: 6692798
    Abstract: This invention relates to an imaging member comprising an image layer and a paper base comprising a mixture of vegetable fibers and wood fibers wherein said vegetable fibers comprise between 5 and 25 percent by weight of said paper base.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: February 17, 2004
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Sandra J. Dagan, Robert P. Bourdelais, Peter T. Aylward, Patrick J. Whittaker
  • Publication number: 20040007154
    Abstract: An imaging composition comprising a mixture of a fluid and a functional material; wherein the fluid is compressed and the functional material is dispersed and/or solubilized in the compressed fluid; and wherein the mixture is thermodynamically stable or thermodynamically metastable or both.
    Type: Application
    Filed: June 23, 2003
    Publication date: January 15, 2004
    Applicant: Eastman Kodak Company
    Inventors: Glen C. Irvin, Ramesh Jagannathan, Seshadri Jagannathan, Sridhar Sadasivan, Suresh Sunderrajan, Rajesh V. Mehta, Ross A. Sprout
  • Patent number: 6672702
    Abstract: A method and apparatus for delivering solvent free marking material to a receiver is provided. A printhead includes a discharge device having an inlet and an outlet with a portion of the discharge device defining a delivery path. An actuating mechanism is moveably positioned along the delivery path. A material selection device has an inlet and an outlet with the outlet of the material selection device being connected in fluid communication to the inlet of the discharge device. The inlet of the material selection device is adapted to be connected to a pressurized source of a thermodynamically stable mixture of a fluid and a marking material, wherein the fluid is in a gaseous state at a location beyond the outlet of the discharge device. A calibration station is positioned relative to the printhead. Additionally, or alternatively, a cleaning station is positioned relative to the printhead.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: January 6, 2004
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, David J. Nelson, Seshadri Jagannathan, Suresh Sunderrajan, Gary E. Merz, John E. Rueping, Glen C. Irvin, Jr., Ramesh Jagannathan, Rajesh V. Mehta
  • Patent number: 6666548
    Abstract: A method and an apparatus for continuously delivering a solvent free marking material to a receiver includes a printhead with a discharge device is provided. The discharge device has an outlet and is in fluid communication with a pressurized reservoir of a thermodynamically stable mixture of a compressed fluid solvent and a marking material. The marking material becomes free of the solvent after ejected through the discharge device. A deflection mechanism is positioned relative to the outlet of the discharge device. The deflection mechanism is adapted to selectively deflect the marking material away from a first path to a second path. A gutter is positioned at an end of the first path, and the solvent free marking material is collected by the gutter. A receiver transporting mechanism is positioned at an end of the second path and the receiver transporting mechanism is adapted to provide a receiver to allow solvent free marking material be deposited on the receiver.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: December 23, 2003
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, David J. Nelson, Seshadri Jagannathan, Thomas C. Jackson, Glen C. Irvin, Jr., Ramesh Jagannathan, Suresh Sunderrajan, Rajesh V. Mehta
  • Publication number: 20030227499
    Abstract: A method and apparatus for delivering solvent free marking material to a receiver is provided. A printhead includes a discharge device having an inlet and an outlet with a portion of the discharge device defining a delivery path. An actuating mechanism is moveably positioned along the delivery path. A material selection device has an inlet and an outlet with the outlet of the material selection device being connected in fluid communication to the inlet of the discharge device. The inlet of the material selection device is adapted to be connected to a pressurized source of a thermodynamically stable mixture of a fluid and a marking material, wherein the fluid is in a gaseous state at a location beyond the outlet of the discharge device. A calibration station is positioned relative to the printhead. Additionally, or alternatively, a cleaning station is positioned relative to the printhead.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 11, 2003
    Applicant: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, David J. Nelson, Seshadri Jagannathan, Suresh Sunderrajan, Gary E. Merz, John E. Rueping, Glen C. Irvin, Ramesh Jagannathan, Rajesh V. Mehta
  • Publication number: 20030227502
    Abstract: A method and apparatus for delivering solvent free marking material to a receiver is provided. A printhead includes a discharge device having an inlet and an outlet with a portion of the discharge device defining a delivery path. An actuating mechanism is moveably positioned along the delivery path. A material selection device has an inlet and an outlet with the outlet of the material selection device being connected in fluid communication to the inlet of the discharge device. The inlet of the material selection device is adapted to be connected to a pressurized source of a thermodynamically stable mixture of a fluid and a marking material, wherein the fluid is in a gaseous state at a location beyond the outlet of the discharge device.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 11, 2003
    Applicant: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Seshadri Jagannathan, Suresh Sunderrajan, Gary E. Merz, John E. Rueping, Glen C. Irvin, Ramesh Jagannathan, Rajesh V. Mehta, David J. Nelson
  • Publication number: 20030219610
    Abstract: The present invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a polymer sheet having at least one oriented polymer core and adhered thereto at least one unoriented polymer layer. Another embodiment relates to an imaging element comprising an imaging layer and a base, wherein said base comprises an integral polymer sheet having at least one oriented polymer core and at least one unoriented polymer layer. The invention further relates to a process of manufacturing a base for an imaging element comprising the steps of extruding a voided core polymer sheet; orienting said extruded voided core polymer sheet; and extrusion coating said oriented extruded voided core polymer sheet with at least one unoriented polymer layer.
    Type: Application
    Filed: May 24, 2002
    Publication date: November 27, 2003
    Applicant: Eastman Kodak Company
    Inventors: Peter T. Aylward, Sandra J. Dagan, Suresh Sunderrajan