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).
-
Publication number: 20030219663Abstract: 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: ApplicationFiled: May 24, 2002Publication date: November 27, 2003Applicant: Eastman Kodak CompanyInventors: Suresh Sunderrajan, Narasimharao Dontula, Peter T. Aylward, Nicholas I. Phippen
-
Publication number: 20030203184Abstract: 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: ApplicationFiled: April 24, 2002Publication date: October 30, 2003Inventors: 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: 6635319Abstract: An ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder, an organic, cationic mordant and thermoplastic polymer particles.Type: GrantFiled: December 1, 1999Date of Patent: October 21, 2003Assignee: Eastman Kodak CompanyInventors: Suresh Sunderrajan, Sridhar Sadasivan, Michelle M. Oakland, Patrick J. Whittaker, John W. Janssen, Craig T. Mollon
-
Patent number: 6632486Abstract: An ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant.Type: GrantFiled: December 1, 1999Date of Patent: October 14, 2003Assignee: Eastman Kodak CompanyInventors: Sridhar Sadasivan, Suresh Sunderrajan, Michelle M. Oakland, Patrick J. Whittaker, Elwood C. Samons, Craig T. Mollon
-
Publication number: 20030152760Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, wherein said foam core sheet has a modulus of between 100 and 2758 MPa and a tensile toughness between 0.344 and 35 MPa, and wherein said upper and lower flange sheet has a modulus of between and 1380 and 20000 MPa and a toughness between 1.4 and 210 MPa.Type: ApplicationFiled: September 30, 2002Publication date: August 14, 2003Applicant: Eastman Kodak CompanyInventors: Yeh-Hung Lai, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk, Narasimharao Dontula, Gary D. Smith, YuanQiao Rao
-
Patent number: 6595630Abstract: A method and apparatus for delivering a functional material to a receiver includes a pressurized source of solvent in a thermodynamically stable mixture with a functional material. The solvent is in a liquid state within the pressurized source. A discharge device having an inlet and an outlet is connected to the pressurized source at the inlet such that the thermodynamically stable mixture is ejected from the outlet. A receiver having a back is positioned a predetermined distance from the outlet of the discharge device. The solvent of the thermodynamically mixture evaporates at a location beyond the outlet of the discharge device and a predetermined amount of the functional material contacts the receiver at a predetermined distance from the back of the receiver.Type: GrantFiled: July 12, 2001Date of Patent: July 22, 2003Assignee: Eastman Kodak CompanyInventors: Ramesh Jagannathan, Glen C. Irvin, Jr., Seshadri Jagannathan, Sridhar Sadasivan, Suresh Sunderrajan, John E. Rueping, Gary E. Merz
-
Publication number: 20030132993Abstract: A method and apparatus for printing and coating includes providing a pressurized source of a thermodynamically stable mixture of a solvent and a marking material. A printhead is connected to the pressurized source. The printhead is configured to produce a first shaped beam of the marking material and a second shaped beam of the marking material. The marking material can be different marking materials or the same marking material.Type: ApplicationFiled: January 17, 2002Publication date: July 17, 2003Applicant: Eastman Kodak CompanyInventors: Sridhar Sadasivan, David J. Nelson, Seshadri Jagannathan, Ramesh Jagannathan, Suresh Sunderrajan, Glen C. Irvin, Gary E. Merz, John E. Rueping
-
Publication number: 20030129376Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, wherein said foam core sheet has a modulus of between 100 and 2758 MPa and a tensile toughness between 0.344 and 35 MPa, and wherein said upper and lower flange sheet has a modulus of between and 1380 and 20000 MPa and a toughness between 1.4 and 210 MPa.Type: ApplicationFiled: December 28, 2001Publication date: July 10, 2003Inventors: Yeh-Hung Lai, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk, Narasimharao Dontula, Gary D. Smith, YuanQiao Rao
-
Publication number: 20030121447Abstract: 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: ApplicationFiled: December 27, 2001Publication date: July 3, 2003Applicant: Eastman Kodak CompanyInventors: Glen C. Irvin, Ramesh Jagannathan, Seshadri Jagannathan, Sridhar Sadasivan, Suresh Sunderrajan, Rajesh V. Mehta, Ross A. Sprout
-
Publication number: 20030122106Abstract: 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: ApplicationFiled: December 27, 2001Publication date: July 3, 2003Applicant: Eastman Kodak CompanyInventors: Glen C. Irvin, Sridhar Sadasivan, Ramesh Jagannathan, Seshadri Jagannathan, Suresh Sunderrajan, Rajesh V. Mehta
-
Publication number: 20030107614Abstract: A printing apparatus is provided. The apparatus includes a pressurized source of a thermodynamically stable mixture of a fluid and a marking material. Portions of a printhead define a delivery path, which is connected to the pressurized source. The printhead includes a discharge device having an outlet with a portion of the discharge device being positioned along the delivery path. The discharge device is shaped to produce a shaped beam of the marking material. The fluid is in a gaseous state at a location beyond the outlet of the discharge device. An actuating mechanism is positioned along the delivery path and has an open position at least partially removed from the delivery path.Type: ApplicationFiled: December 6, 2001Publication date: June 12, 2003Applicant: Eastman Kodak CompanyInventors: David J. Nelson, Sridhar Sadasivan, Ramesh Jagannathan, Seshadri Jagannathan, Glen C. Irvin, Suresh Sunderrajan, John E. Rueping, Gary E. Merz
-
Patent number: 6566033Abstract: The invention relates to an imaging member and a method for use therewith comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, and wherein said imaging member has a stiffness of between 50 and 250 millinewtons and is conductive.Type: GrantFiled: June 20, 2002Date of Patent: May 20, 2003Assignee: Eastman Kodak CompanyInventors: Debasis Majumdar, Narasimharao Dontula, Suresh Sunderrajan, Peter T. Aylward, Kelly S. Robinson, Melvin M. Kestner
-
Patent number: 6537656Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, and wherein said imaging member has a stiffness of between 50 and 250 millinewtons.Type: GrantFiled: November 28, 2000Date of Patent: March 25, 2003Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk
-
Publication number: 20030054957Abstract: A process for the preparation of nanoscale particulate material is described comprising: (i) combining one or more functional material to be precipitated as nanoscale particles and one or more surface active material in a compressed CO2 phase with a density of at least 0.1 g/cc, where the functional material is substantially insoluble in the compressed CO2 in the absence of the surfactant, the surfactant comprises a compressed CO2-philic portion and a functional material-philic portion, and the compressed CO2 phase, functional material and surfactant interact to form an aggregated system having a continuous compressed CO2 phase and a plurality of aggregates comprising surfactant and functional material molecules of average diameter less than 10 nanometers dispersed therein; and (ii) rapidly depressurizing the compressed CO2 phase thereby precipitating the dispersed functional and surfactant materials in the form of composite particles of average diameter from 0.5 to less than 10 nanometers.Type: ApplicationFiled: July 11, 2002Publication date: March 20, 2003Inventors: Glen C. Irvin, Ramesh Jagannathan, Seshadri Jagannathan, Suresh Sunderrajan, David D. Tuschel, William C. Lenhart, David J. Nelson
-
Publication number: 20030030706Abstract: A method and apparatus for delivering a functional material to a receiver includes a pressurized source of solvent in a thermodynamically stable mixture with a functional material. The solvent is in a liquid state within the pressurized source. A discharge device having an inlet and an outlet is connected to the pressurized source at the inlet such that the thermodynamically stable mixture is ejected from the outlet. A receiver having a back is positioned a predetermined distance from the outlet of the discharge device. The solvent of the thermodynamically mixture evaporates at a location beyond the outlet of the discharge device and a predetermined amount of the functional material contacts the receiver at a predetermined distance from the back of the receiver.Type: ApplicationFiled: July 12, 2001Publication date: February 13, 2003Applicant: Eastman Kodak CompanyInventors: Ramesh Jagannathan, Glen C. Irvin, Seshadri Jagannathan, Sridhar Sadasivan, Suresh Sunderrajan, John E. Rueping, Gary E. Merz
-
Patent number: 6514659Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet wherein said upper flange sheet comprises oriented polystyrene or polypropylene polymer wherein the modulus of said upper flange sheet is between 1000 and 3500 MPa and the roughness of the upper surface of said base is less than 0.4 &mgr;m Ra.Type: GrantFiled: November 28, 2000Date of Patent: February 4, 2003Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk
-
Patent number: 6471327Abstract: An apparatus and method of focusing 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. The fluid can be one of a compressed liquid and a supercritical fluid. The thermodynamically stable mixture includes one of the functional material being dispersed in the fluid and the functional material being dissolved in the fluid.Type: GrantFiled: February 27, 2001Date of Patent: October 29, 2002Assignee: Eastman Kodak CompanyInventors: Ramesh Jagannathan, Glen C. Irvin, Jr., Seshadri Jagannathan, Sridhar Sadasivan, Suresh Sunderrajan, John E. Rueping, Gary E. Merz
-
Patent number: 6447882Abstract: An ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant, and a porous overcoat layer located over the image-receiving layer, the porous overcoat layer comprising an inorganic pigment and an organic, anionic, binder, wherein the refractive index of the inorganic pigment in the overcoat layer is at least 0.05 refractive index units less than the refractive index of the inorganic, anionic pigment in the image-receiving layer.Type: GrantFiled: February 28, 2000Date of Patent: September 10, 2002Assignee: Eastman Kodak CompanyInventors: Suresh Sunderrajan, Sridhar Sadasivan, Patrick J. Whittaker, John W. Jannsen
-
Patent number: 6447114Abstract: An ink jet printing method comprising the steps of: a) providing an ink jet printer that is responsive to digital data signals; b) loading the printer with an ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant, and a porous overcoat layer located over the image-receiving layer, the porous overcoat layer comprising an inorganic pigment and an organic, anionic, binder, wherein the refractive index of the inorganic pigment in the overcoat layer is at least 0.05 refractive index units less than the refractive index of the inorganic, anionic pigment in the image-receiving layer; c) loading the printer with an ink jet ink composition; and d) printing on the recording element using the ink jet ink in response to the digital data signals.Type: GrantFiled: February 28, 2000Date of Patent: September 10, 2002Assignee: Eastman Kodak CompanyInventors: Suresh Sunderrajan, Sridhar Sadasivan, Patrick J. Whittaker, John W. Janssen
-
Patent number: 6447976Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, and wherein said imaging member has a stiffness of between 50 and 250 millinewtons and at least one layer of said base comprises whitening agent and said element has L* of greater than 90.4.Type: GrantFiled: November 28, 2000Date of Patent: September 10, 2002Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk, Terry A. Heath