Patents by Inventor David J. Nelson

David J. Nelson 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: 11950372
    Abstract: Methods of making metal patterns on flexible substrates are provided. Releasable solid layer is selectively formed on a patterned surface of the flexible substrate by applying a liquid solution thereon. Metal patterns on the flexible substrate can be formed by removing the releasable solid layer after metallization. In some cases, the releasable solid layer can be transferred from the patterned surface to a transfer layer where the metal patterns are formed.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: April 2, 2024
    Assignee: 3M INNOVATION PROPERTIES
    Inventors: Henrik B. van Lengerich, Matthew S. Stay, Caleb T. Nelson, David J. Tarnowski, David J. Rowe, Edwin L. Kusilek
  • Publication number: 20240102783
    Abstract: A tool, such as a tape measure, including a spring-based retraction system is shown. Various spring-based retraction system embodiments are configured to decrease the size occupied by the spring within the tape measure housing, which consequently reduces tape measure housing size providing a more compact tape measure. Various spring-based retraction system embodiments are configured to control retraction of the tape measure in a manner that reduces whip or otherwise controls tape blade retraction. Some retraction system embodiments utilize a reduction gear train, and others utilize a compression spring and a transmission system that converts rotational movement of the tape reel to axial movement, which compresses the spring.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Inventors: Collin J. Nelson, David Andrew Wortelboer, Kyle C. Anderson, Abhijeet A. Khangar, Jonathan F. Vitas
  • Patent number: 8091990
    Abstract: A continuous liquid printing system gas flow device includes a gas flow duct structure including a first wall and a second wall. The first wall and the second wall are positioned spaced apart and opposite each other to form an opening. The first wall is contoured such that a distance between the first wall and the second wall varies when viewed in a direction perpendicular to the opening.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: January 10, 2012
    Assignee: Eastman Kodak Company
    Inventors: David J. Nelson, David L. Jeanmaire, Douglas E. Schultz, Joseph E. Yokajty, Michael S. Hanchak, John C. Brazas
  • Patent number: 8091991
    Abstract: In an inkjet printhead using a gas flow, typically air, to deflect select drop into catch, gas flow (air) ducts are employed to direct the air across the drop trajectories. Improved air ducts include liquid flow channels in a wall of the air duct are provided to allow ink to be removed from the air duct without disrupting the air flow in the duct. A process for cleaning the air duct using the liquid flow channel is also provided.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: January 10, 2012
    Assignee: Eastman Kodak Company
    Inventors: Michael S. Hanchak, Kevin P. Egan, David J. Nelson, Joseph E. Yokajty, Randal L. Mullins
  • Patent number: 7946691
    Abstract: A method of printing and a printhead are provided. The printhead includes a nozzle array having a width; a gas flow source; and a gas flow duct in fluid communication with the gas flow source. The gas flow duct includes an expansion region and a compression region. The expansion region of the gas flow duct gradually expands along its cross sectional length to at least the width of the nozzle array. The compression region of the gas flow duct gradually contracts along its cross sectional length.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: May 24, 2011
    Assignee: Eastman Kodak Company
    Inventors: Todd R. Griffin, David L. Jeanmaire, David J. Nelson
  • Publication number: 20100110151
    Abstract: A method of printing and a printhead are provided. The printhead includes a nozzle array having a width; a gas flow source; and a gas flow duct in fluid communication with the gas flow source. The gas flow duct includes an expansion region and a compression region. The expansion region of the gas flow duct gradually expands along its cross sectional length to at least the width of the nozzle array. The compression region of the gas flow duct gradually contracts along its cross sectional length.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 6, 2010
    Inventors: Todd R. Griffin, David L. Jeanmaire, David J. Nelson
  • Patent number: 7682002
    Abstract: A drop generator operable to selectively form a drop having a first size and a drop having a second size from liquid emitted through a nozzle associated with the drop generator. The drop having the first size and the drop having the second size travel along a drop trajectory with the first size being larger than the second size when compared to each other. Each of the drops has a drop velocity. A gas flow deflection system includes a gas flow that is directed at a deflection zone that comprises at least a portion of the drop trajectory. The gas flow in the deflection zone includes a velocity vector having a parallel velocity component and a perpendicular velocity component with the parallel velocity component and the perpendicular velocity component being defined relative to the drop trajectory.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: March 23, 2010
    Assignee: Eastman Kodak Company
    Inventors: Randolph C. Brost, David J. Nelson, Bradley A. Phillips, Joseph E. Yokajty, Todd R. Griffin, Michael F. Baumer, Robert J. Simon, Michael S. Hanchak, James A. Katerberg, Thomas W. Steiner, Zhanjun Gao, Jinquan Xu, John Charles Brazas, Jr., David Louis Jeanmaire
  • Publication number: 20090295879
    Abstract: A continuous liquid printing system gas flow device includes a gas flow duct structure including a first wall and a second wall. The first wall and the second wall are positioned spaced apart and opposite each other to form an opening. The first wall is contoured such that a distance between the first wall and the second wall varies when viewed in a direction perpendicular to the opening.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 3, 2009
    Inventors: David J. Nelson, David L. Jeanmaire, Douglas E. Schultz, Joseph E. Yokajty, Michael S. Hanchak, John C. Brazas
  • Publication number: 20090295880
    Abstract: In an inkjet printhead using a gas flow, typically air, to deflect select drop into catch, gas flow (air) ducts are employed to direct the air across the drop trajectories. Improved air ducts include liquid flow channels in a wall of the air duct are provided to allow ink to be removed from the air duct without disrupting the air flow in the duct. A process for cleaning the air duct using the liquid flow channel is also provided.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 3, 2009
    Inventors: Michael S. Hanchak, Kevin P. Egan, David J. Nelson, Joseph E. Yokajty, Randal L. Mullins
  • Publication number: 20080278548
    Abstract: A drop generator operable to selectively form a drop having a first size and a drop having a second size from liquid emitted through a nozzle associated with the drop generator. The drop having the first size and the drop having the second size travel along a drop trajectory with the first size being larger than the second size when compared to each other. Each of the drops has a drop velocity. A gas flow deflection system includes a gas flow that is directed at a deflection zone that comprises at least a portion of the drop trajectory. The gas flow in the deflection zone includes a velocity vector having a parallel velocity component and a perpendicular velocity component with the parallel velocity component and the perpendicular velocity component being defined relative to the drop trajectory.
    Type: Application
    Filed: May 7, 2007
    Publication date: November 13, 2008
    Inventors: Randolph C. Brost, David J. Nelson, Bradley A. Phillips, Joseph E. Yokajty, Todd R. Griffin, Michael F. Baumer, Robert J. Simon, Michael S. Hanchak, James A. Katerberg, Thomas W. Steiner, Zhanjun Gao, Jinquan Xu, John Charles Brazas, JR., David Louis Jeanmaire
  • Patent number: 7413286
    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: Grant
    Filed: September 8, 2005
    Date of Patent: August 19, 2008
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Seshadri Jagannathan, Suresh Sunderrajan, Gary E. Merz, John E. Rueping, Glen C. Irvin, Jr., Ramesh Jagannathan, Rajesh V. Mehta, David J. Nelson
  • Patent number: 7276184
    Abstract: 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: Grant
    Filed: July 11, 2002
    Date of Patent: October 2, 2007
    Assignee: Eastman Kodak Company
    Inventors: Glen C. Irvin, Ramesh Jagannathan, Seshadri Jagannathan, Suresh Sunderrajan, David D. Tuschel, William C. Lenhart, David J. Nelson
  • Patent number: 7273643
    Abstract: An article having multiple spectral deposits is provided. The article can include a support and a single nanomorphic marking material adapted to reflect light having a first spectral content and adapted to reflect light having a second spectral content. The article can include a support and a nanomorphic marking material held by the support that luminesces at a plurality of wavelengths. The article can include a support and marking material having a first particle size and a second particle size. The first particle size reflects a first spectrum and the second particle size reflects a second spectrum. The article can include a support and a marking material held by said support with the marking material including a nanocrystalline particulate having a measurable property non-characteristic of the same marking material in a bulk state.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: September 25, 2007
    Assignee: Eastman Kodak Company
    Inventors: David J. Nelson, Sridhar Sadasivan, Ramesh Jagannathan, Seshadri Jagannathan, Glen C. Irvin, Jr., Rajesh V. Mehta
  • Patent number: 7220456
    Abstract: A process for the patterning of a desired substance on a surface includes: (i) charging a particle formation vessel with a compressed fluid; (ii) introducing into the particle formation vessel a first feed stream comprising a solvent and the desired substance dissolved therein and a second feed stream comprising the compressed fluid, wherein the desired substance is less soluble in the compressed fluid relative to its solubility in the solvent and the solvent is soluble in the compressed fluid, and wherein the first feed stream is dispersed in the compressed fluid, allowing extraction of the solvent into the compressed fluid and precipitation of particles of the desired substance; (iii) exhausting compressed fluid, solvent and the desired substance from the particle formation vessel at a rate substantially equal to a rate of addition of such components to the vessel in step (ii) through a restrictive passage to a lower pressure whereby the compressed fluid is transformed to a gaseous state, and wherein the re
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: May 22, 2007
    Assignee: Eastman Kodak Company
    Inventors: Rajesh V. Mehta, Ramesh Jagannathan, Seshadri Jagannathan, David J. Nelson
  • Patent number: 7221759
    Abstract: A projector (10) with enhanced security camcorder defeat including a copy protection illumination system (1) for illuminating a spatial light modulator (30) comprises: a polychromatic light source (20); uniformizing optics (22) for homogenizing light from the polychromatic light source to provide a uniform illumination field; relay optics; dichroic optics; an interference modulation element (5) located at a plane in an optical path located between the polychromatic light source and the spatial light modulator; and a detection means for determining the absence of the interference modulation element.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: May 22, 2007
    Assignee: Eastman Kodak Company
    Inventor: David J. Nelson
  • Patent number: 7160573
    Abstract: A method of forming a color filter is provided. The method includes providing a mixture of a color filter material and a compressed fluid; providing at least a partially controlled environment for retaining a substrate, the at least partially controlled environment being in fluid communication with the mixture of the color filter material and the compressed fluid; providing a shadow mask in close proximity to the substrate retained in the at least partially controlled environment; and chargably releasing the mixture of the color filter material and the compressed fluid into the at least partially controlled environment, wherein the color filter material becomes free of the compressed fluid prior to contacting the substrate at locations defined by the shadow mask thereby forming a patterned deposition on the substrate.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: January 9, 2007
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Ramesh Jagannathan, Seshadri Jagannathan, Rajesh Mehta, David J. Nelson, Glen C. Irvin, Jr.
  • Patent number: 7153539
    Abstract: An apparatus and method of color tuning a light emitting display are provided. The apparatus includes a source of a mixture of a compressed fluid solvent and an organic material. A discharge device is positioned in fluid communication with the source of the mixture of the compressed fluid and the organic material. A condition controlling device is positioned in fluid communication between the source and the discharge device. The method includes providing a substrate, providing a first addressing electrode on the substrate, controllably depositing an organic nanomorphic material over the first addressing electrode, and providing a second addressing electrode over the organic nanomorphic material.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: December 26, 2006
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Ramesh Jagannathan, Seshadri Jagannathan, David J. Nelson, Rajesh V. Mehta, Glen C. Irvin, Jr., Thomas N. Blanton, Robert S. Cupello
  • Patent number: 7044376
    Abstract: Authentication systems, apparatus, and methods authenticate an identification marking including a nanocrystalline material. One or more properties of the marking are ascertained to provide a measured profile. The measured profile is compared to at least one member of a closed set of reference profiles. Each reference profile has predetermined values of one or more properties. Each reference profile is unique within the set. At least one reference profile is characteristic of an indicator material in a nanocrystalline morphology and non-characteristic of the same indicator material in a bulk morphology.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: May 16, 2006
    Assignee: Eastman Kodak Company
    Inventors: David J. Nelson, Seshadri Jagannathan, Ramesh Jagannathan, Thomas N. Blanton, Sridhar Sadasivan, Byron R. Sever, David D. Tuschel
  • Patent number: 6989139
    Abstract: Thus the present invention describes novel compounds comprising 1-10 targeting moieties; a chelator (Ch); and 0-1 linking groups (Ln) between the targeting moiety and chelator; wherein the targeting moiety is a matrix metalloproteinase inhibitor; and wherein the chelator is capable of conjugating to a cytotoxic radioisotope. The present invention also provides novel compositions of the compounds of the invention, kits and their uses in treatment of diseases associated with MMPs.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: January 24, 2006
    Assignee: Bristol-Myers Squibb Pharma Company
    Inventors: Carl P. Decicco, David J. Nelson, John A. Barrett, Alan P. Carpenter Jr., Jingwu Duan, Milind Rajopadhye
  • Patent number: D595183
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: June 30, 2009
    Assignee: Simpson Performance Products, Inc.
    Inventors: David J. Nelson, Russell J. Somers