Eastman-kodak Company

Ramesh Jagannathan

Seshadri Jagannathan

Rajesh Vinodrai Mehta

Sridhar Sadasivan

Glen C Irvin, Jr

David John Nelson

Suresh Sunderrajan

John E Rueping

Gary Edward Merz

Thomas N Blanton

David D Tuschel

Dirk J Hasberg

Julia S Tan

Michael Bryan

Matthew R Bye

Ross A Sprout

Tin T Vo

Mark Edward Irving

David George Foster

Jeffrey L Hall

Richard L Daubendiek

Jerzy A Budz

Kelly Stephen Robinson

David E Fenton

Bradley M Houghtaling

John E Keevert

Steven P Szatynski

Jess B Hendricks, Iii

Maurice L Gray

Gerald W Klein

Shane Crawford Weber

Cynthia G Jones

Michael G Antoniades

Heinz E Stapelfeldt

Wai K Lam

Pierre Henri Jezequel

Karen L Pond

Byron R Sever

Thomas C Jackson

Terrie L Osborne-Perry

Robert S Cupello

Sabet Kamel Salib

William C Lenhart

Y Chea Chang

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.

Method and apparatus for printing

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 COphase with a density of at least 0.1 g/cc, where the functional material is substantially insoluble in the compressed COin the absence of the surfactant, the surfactant comprises a compressed CO-philic portion and a functional material-philic portion, and the compressed COphase, functional material and surfactant interact to form an aggregated system having a continuous compressed COphase 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 COphase 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.

Surfactant assisted nanomaterial generation process

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.

Article having multiple spectral deposits

A process for the deposition of particulate material 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 the 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 a flow of particles of the desired substance is formed; and (iv) exposing a receiver surface to the exhausted flow of particles of the desired substance and depositing a uniform layer of particles on the receiver surface.

Process for the deposition of uniform layer of particulate material

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 restrictive passage includes a discharge device that produces a shaped beam of particles of the desired substance at a point beyond an outlet of the discharge device, where the fluid is in a gaseous state at a location before or beyond the outlet of the discharge device; and (iv) exposing a receiver surface to the shaped beam of particles of the desired substance and selectively depositing a pattern of particles on the receiver surface.

Process for the selective deposition of particulate material

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.

Method of manufacturing a color filter

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.

Apparatus and method of color tuning a light-emitting display

Methods of forming a dye donor layer of a dye-donor element for a thermal dye transfer system are described. The methods include coating colored particles in a compressed carrier fluid on the substrate of the dye-donor element.

Method of forming dye donor element

A process for the preparation of a self assembled superlattice thin film of organic nanocrystal particles is described comprising: (i) combining one or more functional organic material to be precipitated as nanocrystal particles and one or more surface active material in a compressed COphase with a density of at least 0.1 g/cc, where the functional material is substantially insoluble in the compressed COin the absence of the surfactant, the surfactant comprises a compressed CO-philic portion and a functional material-philic portion, and the compressed COphase, functional material and surfactant interact to form an aggregated system having a continuous compressed COphase and a plurality of aggregates comprising surfactant and functional material molecules of average diameter less than 50 nanometers dispersed therein; (ii) rapidly depressurizing the compressed COphase thereby precipitating the dispersed functional and surfactant materials in the form of composite organic nanocrystals of average diameter less than 50 nanometers, and (iii) depositing the organic nanocrystals on a substrate surface, wherein the organic nanocrystals form a thin film having an ionic content of less than 0.001 M in equivalent sodium chloride concentration on the substrate surface, and the thin film exhibits a long range periodicity in the arrangement of the organic nanocrystals in a self assembled superlattice structure, as evidenced by x-ray diffraction.

Self assembled organic nanocrystal superlattices

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.

Authentication method and apparatus for use with compressed fluid printed swatches

An imaging composition comprising a mixture of a solvent and a functional material; wherein the solvent is a compressed fluid and the functional material is a electron transporting material which is dissolved, dispersed and/or solubilized in the compressed fluid; wherein the mixture is thermodynamically stable or thermodynamically metastable or both; wherein the functional material is solvent-free upon deposition on a substrate; and wherein the functional material forms a solid film upon deposition on the substrate.

Compressed fluid formulation containing electron transporting material

An imaging composition comprising a mixture of a solvent and a functional material; wherein the solvent is a compressed fluid and the functional material is an electroluminescent polymeric material which is dissolved, dispersed and/or solubilized in the compressed fluid; wherein the mixture is thermodynamically stable or thermodynamically metastable or both; wherein the functional material is solvent-free upon deposition on a substrate; and wherein the functional material forms a solid film upon deposition on the substrate.

Compressed fluid formulation containing electroluminescent polymeric material

An imaging composition comprising a mixture of a solvent and a functional material; wherein the solvent is a compressed fluid and the functional material is a hole transporting material which is dissolved, dispersed and/or solubilized in the compressed fluid; wherein the mixture is thermodynamically stable or thermodynamically metastable or both; wherein the functional material is solvent-free upon deposition on a substrate; and wherein the functional material forms a solid film upon deposition on the substrate.

Compressed fluid formulation containing hole transporting material

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.

Method and apparatus for printing and coating

Growing community of inventors

Rochester, NY, United States of America

Ramesh Jagannathan