Patents by Inventor Dinesh Tyagi

Dinesh Tyagi 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: 20150093701
    Abstract: A method for creating a document, the method includes the steps of providing a transparent substrate; providing a toner image, which includes a plurality of color toners and a black toner; determining an amount of white toner to be deposited dependent upon a mass laydown of the black toner and a covering power of the black toner; depositing the determined amount of white toner with the color toners and black toner on the transparent substrate; and fixing the deposited toners on the substrate.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 2, 2015
    Inventors: DINESH TYAGI, Kevin D. Lofftus, Louise Granica
  • Publication number: 20150093553
    Abstract: A document includes a transparent substrate; a plurality of color toners and a black toner in a fused image on the substrate; an amount of white toner in the fused image on the substrate; wherein the amount of fused white toner is a non-uniform amount as determined by an covering power of the fused black toner.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 2, 2015
    Inventors: Dinesh Tyagi, Kevin D. Lofftus, Louise Granica
  • Publication number: 20150093149
    Abstract: A method for forming a tactile printed image on a receiver medium to convey information to a visually-impaired person from image data having an array image pixels with binary pixel values. The tactile printed image by depositing tactile marking material onto the receiver medium, wherein no tactile marking material is deposited onto portions of the receiver medium corresponding to image pixels having a first state, and tactile marking material is deposited onto portions of the receiver medium corresponding to image pixels having the second state. The receiver medium has a first coefficient of friction, and the portions of the tactile printed image having deposited tactile marking material are raised by at least 20 microns relative to the surface of the receiver medium and have a second coefficient of friction which differs from the first coefficient of friction by at least 0.06.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 2, 2015
    Inventors: Dinesh Tyagi, Louise Granica
  • Publication number: 20150086913
    Abstract: A fluorescing yellow polymeric toner particle comprises one or more non-fluorescing yellow colorants, and one or more fluorescing yellow colorants having one or more emission peak wavelengths of at least 480 nm and up to and including 600 nm. These fluorescing yellow polymeric toner particles can be used to provide multicolor toner images with increased yellow color gamut on various printed receiver materials.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 26, 2015
    Inventors: Dinesh Tyagi, Chung-Hui Kuo, Louise Granica
  • Patent number: 8936897
    Abstract: A composite color toner image can be enhanced by applying a separate fluorescing toner image over it to provide an enhanced color toner image having a “pinkish” fluorescing effect. This separate fluorescing toner image is obtained using visible fluorescing dry magenta toner particles. Each of these toner particles consists essentially of a polymeric binder phase and a visible fluorescing colorant that emits at one or more peak wavelengths of at least 510 nm and up to and including 590 nm and that is dispersed within the polymeric binder phase.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: January 20, 2015
    Assignee: Eastman Kodak Company
    Inventors: Dinesh Tyagi, Louise Granica, Chung-Hui Kuo
  • Patent number: 8936893
    Abstract: A fluorescing yellow polymeric toner particle comprises one or more non-fluorescing yellow colorants, and one or more fluorescing yellow colorants having one or more emission peak wavelengths of at least 480 nm and up to and including 600 nm. These fluorescing yellow polymeric toner particles can be used to provide multicolor toner images with increased yellow color gamut.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 20, 2015
    Assignee: Eastman Kodak Company
    Inventors: Dinesh Tyagi, Chung-Hui Kuo, Louise Granica
  • Publication number: 20140356784
    Abstract: A method of creating a scratch-off document, the method includes the steps of providing a substrate; applying an image toner on the substrate; heating the image toner which causes the image toner to fix to the substrate and causes low surface energy component in the image toner to migrate to a surface of a formed image; applying a non-image toner on the surface of the formed image and the substrate; fusing the non-image toner which fuses the non-image toner to the surface of the formed image and the substrate, which causes the fused non-image toner to fuse to a level that permits scratch-off of a scratch-off portion of the fused non-image toner.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Dinesh Tyagi, Louise Granica
  • Publication number: 20140356537
    Abstract: A method for creating a scratch-off document, the method includes the steps of providing a substrate with an image; covering the image with a scratch-off toner; sintering the scratch-off toner; wherein an amount of the sintering of the scratch-off toner is determined from a group consisting of pressure, speed, and mass of the scratch-off toner so that the scratch-off toner is sintered at a level which permits removal.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Dinesh Tyagi, Louise Granica
  • Patent number: 8883390
    Abstract: A method for creating a scratch-off document having hidden information, the method includes providing a substrate; depositing a first layer of first toner particles on the substrate, wherein the first layer includes at least two thicknesses in which one region is thicker than the other region; depositing a second layer of toner particles on the first layer, wherein the first toner particles have a different thermal conductivity than the second toner particles; and applying heat to the first and second layers simultaneously so that the first layer adheres to the substrate in regions of the lesser thickness of the first toner particles and does not adhere in the regions of greater thickness of the first toner particles; wherein the first and second layers in the regions of greater thickness of the first toner layer can be removed thereby revealing hidden information.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: November 11, 2014
    Assignee: Eastman Kodak Company
    Inventors: Dinesh Tyagi, Mark Cameron Zaretsky, Robert David Bobo
  • Publication number: 20140320927
    Abstract: A method for determining color separation image data for printing for an ink jet printer. Target colors are determined as a function of location in accordance with the image data, and color separation image data is determined specifying amounts of a fluorescent ink and one or more non-fluorescent reflective inks to be combined to form the target colors when printed on an ink receiver. For target colors having a specified hue angle the amount of the fluorescent ink is decreased as a density of the target color increases beyond a threshold density level.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 30, 2014
    Inventors: Chung-Hui Kuo, Dinesh Tyagi
  • Publication number: 20140314997
    Abstract: A scratch-off document includes a substrate and a toner covering; the toner covering including: a first layer of first toner particles on the substrate having a first and second thickness, wherein the first and second thicknesses are different; a second layer of second toner particles on the first layer of toner particles; and at least one additive in either the first or second layer for creating a thermal conductivity difference between the first and second layer, wherein a portion of the first layer having a greater thickness and a portion of the second toner layer in registration with the first layer of greater thickness is manually removable by a scratching action.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 23, 2014
    Inventors: MARK CAMERON ZARETSKY, Dinesh Tyagi, Robert David Bobo
  • Publication number: 20140315128
    Abstract: A method for creating a scratch-off document having hidden information, the method includes providing a substrate; depositing a first layer of first toner particles on the substrate, wherein the first layer includes at least two thicknesses in which one region is thicker than the other region; depositing a second layer of toner particles on the first layer, wherein the first toner particles have a different thermal conductivity than the second toner particles; and applying heat to the first and second layers simultaneously so that the first layer adheres to the substrate in regions of the lesser thickness of the first toner particles and does not adhere in the regions of greater thickness of the first toner particles; wherein the first and second layers in the regions of greater thickness of the first toner layer can be removed thereby revealing hidden information.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 23, 2014
    Inventors: DINESH TYAGI, Mark Cameron Zaretsky, Robert David Bobo
  • Patent number: 8849135
    Abstract: A method for producing a raised print using a three-component printer includes receiving image data and height data for an image to be printed, the height data specifying that raised printing should be produced in a non-yellow region of the image data. Separation data are determined for a yellow toner and two additional colored toners. The yellow separation data is determined based on the image data and the height data. The yellow separation and at least one of the colored separations specify that respective toners be deposited one atop the other in the non-yellow region. The two additional colored toners include respective amounts of black colorant. Using the printer with exactly three printing modules, respective toner images are deposited on the receiver, each corresponding to respective separation data. The deposited toner is fixed to the receiver.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: September 30, 2014
    Assignee: Eastman Kodak Company
    Inventors: Mark Cameron Zaretsky, Donald Saul Rimai, Dinesh Tyagi
  • Publication number: 20140272339
    Abstract: A fluorescing yellow polymeric toner particle comprises one or more non-fluorescing yellow colorants, and one or more fluorescing yellow colorants having one or more emission peak wavelengths of at least 480 nm and up to and including 600 nm. These fluorescing yellow polymeric toner particles can be used to provide multicolor toner images with increased yellow color gamut.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Dinesh Tyagi, Chung-Hui Kuo, Louise Granica
  • Patent number: 8802341
    Abstract: A black toner composition is disclosed. The composition includes toner particles prepared by a chemical process of manufacture including carbon black pigment, a first addition polymer comprising carboxylic acid groups along the polymer backbone, and a thermoplastic second polymer binder distinct from the first addition polymer. In the composition, the first polymer has an Acid Value of from 30 to 220 and is present at a weight ratio of greater than 1:2 relative to the amount of carbon, and at a relatively lower weight percent than the second polymer.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: August 12, 2014
    Assignee: Eastman Kodak Company
    Inventors: Dinesh Tyagi, Louise Granica
  • Patent number: 8805217
    Abstract: Methods are provided for determining toner colors to be combined to form a target color at a location on a receiver. In one aspect, a method includes determining a fluorescent toner color to be provided at the location based upon the density and hue angle of the target color; determining one or more reflective toner colors to be provided with the determined fluorescent toner color at the location to form the target color and the amount of the fluorescent toner color is decreased as the target color density increases.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: August 12, 2014
    Assignee: Eastman Kodak Company
    Inventors: Chung-Hui Kuo, Dinesh Tyagi
  • Publication number: 20140212642
    Abstract: A composite color toner image can be enhanced in a printed receiver material by having a separate fluorescing magenta toner image applied over it to provide a “pinkish” fluorescing effect. This separate fluorescing magenta toner image is obtained using visible fluorescing dry magenta toner particles, each of which has a polymeric binder phase and a visible fluorescing colorant that emits at one or more peak wavelengths of from 510 nm and to and including 590 nm. The covering power of the fused visible fluorescing magenta toner particles in the enhanced composite color toner image is at least 350 cm2/g to and including 1100 cm2/g, and the covering power of each of the non-fluorescing cyan, non-fluorescing yellow, non-fluorescing magenta, and non-fluorescing black toner particles in the enhanced composite color toner image is at least 1500 cm2/g to and including 2300 cm2/g.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Inventors: Dinesh Tyagi, Louise Granica, Chung-Hui Kuo
  • Patent number: 8758969
    Abstract: A method for producing an antenna structure for an RFID device, a dry toner for use in producing an antenna for an RFID device and a RFID device comprising an antenna structure made of fused toner are disclosed. In a method for producing an antenna structure for an RFID device, a dry toner comprising a polymeric binder and metallic particles is provided. The toner comprises particles having a resistance allowing triboelectric charging or a resistance allowing inductive charging, wherein said metallic particles are nanoparticles having a mean particle size below approximately 500 nm in at least one direction. In the method, a continuous layer of the dry toner is applied to a substrate in a desired shape of an antenna via an electrophotographic printing process, and subsequently the toner is fused to the substrate by heating the toner above its glass transformation temperature.
    Type: Grant
    Filed: December 22, 2007
    Date of Patent: June 24, 2014
    Assignee: Eastman Kodak Company
    Inventors: Detlef Schulze-Hagenest, Dinesh Tyagi
  • Patent number: 8760719
    Abstract: Systems are provided for determining toner color having a processor that generates a fluorescent toner color image that when printed using a corresponding fluorescent toner will generate a diffuse fluorescent color light that reduces the extent to which noise induced variations in density in a noise evident portion of a toner print are observable. The processor further adjusts reflective toner color images used to form the toner print so that the reflective toner color images combine with the fluorescent color image to form a target color image.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: June 24, 2014
    Assignee: Eastman Kodak Company
    Inventors: Dinesh Tyagi, Chung-Hui Kuo
  • Patent number: 8755699
    Abstract: Methods for determining toner color images are provided in which fluorescent toner is used create light in a fused toner mass that reduces the appearance of noise in a noise evident portion of the fused toner mass.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: June 17, 2014
    Assignee: Eastman Kodak Company
    Inventors: Chung-Hui Kuo, Dinesh Tyagi