Patents by Inventor Marshall Field

Marshall Field 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: 20060135361
    Abstract: A markable material includes a base matrix material, a thermally activated marking material, and at least one colorant.
    Type: Application
    Filed: December 22, 2004
    Publication date: June 22, 2006
    Inventors: David Markel, Marshall Field, Michael Day, Qin Liu
  • Patent number: 7060654
    Abstract: A coating includes an antenna uniformly distributed in both a matrix and a leuco-dye phase of the coating. A method for preparing an imaging material includes providing a powder having an activator and an antenna, dissolving the activator/antenna powder to form an activator/matrix pre-polymer solution, providing a leuco-dye alloy, and dispersing the leuco-dye alloy into the activator/matrix pre-polymer solution to form a radiation-curable paste. An image-recording medium includes a matrix having an antenna and an activator, and an alloy dispersed in the matrix as an independent phase. The alloy includes an antenna, a leuco-dye, and an accelerator.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: June 13, 2006
    Assignee: Hewlett-Packard Development Company
    Inventors: Vladek P Kasperchik, Makarand P. Gore, Marshall Field, Jayprakash Bhatt
  • Publication number: 20060121234
    Abstract: Disclosed herein are imaging materials and methods of making imaging materials. The imaging systems disclosed herein may include a reflective layer disposed proximate to and beneath a laser imageable layer on an optical disc.
    Type: Application
    Filed: December 7, 2004
    Publication date: June 8, 2006
    Inventors: Marshall Field, Vladek Kasperchik, Mehrgan Khavari, David Kwasny, Cari Dorsh
  • Publication number: 20060077228
    Abstract: A fluid dispensing system, including a photon source disposed on a moveable carriage and a fluid ejector array having a plurality of fluid ejection elements disposed on a substrate. Each fluid ejection element includes a fluid ejector, and a photodetector electrically coupled to the fluid ejector. Moving said photon source over at least a portion of the fluid ejector array, selectively illuminates the photodetectors, thereby selectively activating the fluid ejectors coupled to the illuminated photodetectors.
    Type: Application
    Filed: September 16, 2005
    Publication date: April 13, 2006
    Inventors: Tony Cruz-Uribe, Morad Samii, Scott Hock, Marshall Field
  • Patent number: 6981758
    Abstract: A fluid dispensing system, including a photon source disposed on a moveable carriage and a fluid ejector array having a plurality of fluid ejection elements disposed on a substrate. Each fluid ejection element includes a fluid ejector, and a photodetector electrically coupled to the fluid ejector. Moving said photon source over at least a portion of the fluid ejector array, selectively illuminates the photodetectors, thereby selectively activating the fluid ejectors coupled to the illuminated photodetectors.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: January 3, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Tony Cruz-Uribe, Morad Samii, Scott W Hock, Marshall Field
  • Patent number: 6974661
    Abstract: A composition, method, and system for recording an image. The system includes a multiphase imaging material in which energy is absorbed by an antenna material. The absorbed energy causes the reaction of an activator and a color-forming material.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: December 13, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Makarand P. Gore, Marshall Field, Vladek P Kasperchik
  • Publication number: 20050244741
    Abstract: A composition, method, and system for recording an image. The system includes a multiphase imaging material in which energy is absorbed by an antenna material. The absorbed energy causes the reaction of an activator and a color-forming material to form a mark. A fixer is employed to retard the fading of the mark.
    Type: Application
    Filed: April 28, 2004
    Publication date: November 3, 2005
    Inventors: Vladek Kasperchik, William Dorogy, Makarand Gore, Marshall Field
  • Publication number: 20050239650
    Abstract: A layered image-forming composite can include a substrate having a background color layer and a color-forming layer applied thereon. The color-forming layer includes a leuco dye that can be developed upon exposure to energy to produce a developed color. The background layer and the color-forming layer can each contribute to the overall appearance of the composite either before and/or after development of the leuco dye. In one aspect, the color-forming layer can have a thickness sufficiently thin to allow a portion of the fixed background color to be visible through a developed portion of the color-forming layer. Optionally, the color-forming layer can be applied in a filter pattern, e.g., halftone, moire, stochastic, etc. in order to provide unique visual effects to the layered composite.
    Type: Application
    Filed: April 27, 2004
    Publication date: October 27, 2005
    Inventors: Marshall Field, David Markel, Sandra Hill
  • Publication number: 20050170233
    Abstract: A seal for a fuel cell includes a matrix of glass and an embedded phase that includes a metal. The seal is configured to absorb stresses by becoming structurally yieldable at operating temperatures of the fuel cell.
    Type: Application
    Filed: January 3, 2005
    Publication date: August 4, 2005
    Inventors: Christopher Beatty, Marshall Field, David Champion
  • Publication number: 20050089782
    Abstract: A coating includes an antenna uniformly distributed in both a matrix and a leuco-dye phase of the coating. A method for preparing an imaging material includes providing a powder having an activator and an antenna, dissolving the activator/antenna powder to form an activator/matrix pre-polymer solution, providing a leuco-dye alloy, and dispersing the leuco-dye alloy into the activator/matrix pre-polymer solution to form a radiation-curable paste. An image-recording medium includes a matrix having an antenna and an activator, and an alloy dispersed in the matrix as an independent phase. The alloy includes an antenna, a leuco-dye, and an accelerator.
    Type: Application
    Filed: October 28, 2003
    Publication date: April 28, 2005
    Inventors: Vladek Kasperchik, Makarand Gore, Marshall Field, Jayprakash Bhatt
  • Patent number: 6867793
    Abstract: A method of marking an optical recording medium is provided. The method includes providing a curable material on a non-data surface of the optical recording medium. An energy source interacts with the curable material to form permanent text and/or images on the optical recording medium. The energy source includes a laser that produces energy at a frequency absorbed by the curable material. The method does not require specialized equipment and allows for increased amounts of information to be marked on the optical recording medium.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: March 15, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Marshall Field
  • Publication number: 20050024433
    Abstract: A fluid ejector head, including a fluid ejector disposed on an ejector support, and a photodetector electrically coupled to the fluid ejector. The fluid ejector head also includes a photon source photonically coupled only to the photodetector. Photons emitted from the photon source interact with the photodetector and generate an activation signal. The activation signal in turn activates the fluid ejector ejecting a fluid away from the fluid ejector.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 3, 2005
    Inventors: Antonio Cruz-Uribe, Mohammad Samii, Scott Hock, Marshall Field
  • Publication number: 20050024448
    Abstract: A fluid dispensing system, including a photon source disposed on a moveable carriage and a fluid ejector array having a plurality of fluid ejection elements disposed on a substrate. Each fluid ejection element includes a fluid ejector, and a photodetector electrically coupled to the fluid ejector. Moving said photon source over at least a portion of the fluid ejector array, selectively illuminates the photodetectors, thereby selectively activating the fluid ejectors coupled to the illuminated photodetectors.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 3, 2005
    Inventors: Tony Cruz-Uribe, Morad Samii, Scott Hock, Marshall Field
  • Publication number: 20040247980
    Abstract: A seal for a fuel cell includes an alloy configured to absorb thermal and redox stresses transferred to the fuel cell by becoming structurally yieldable at operating temperatures of the fuel cell.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Inventors: Christopher Beatty, Marshall Field, David Champion
  • Publication number: 20040155846
    Abstract: A transparent active-matrix display based on a substrate has a multiplicity of transparent active pixel elements arranged in an array and transparent electrical connections to each pixel, whereby each of the pixel elements is adapted to be set independently to two or more states. In some embodiments, the substrate may also be transparent.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Inventors: Randy Hoffman, Michael J. Regan, Susan Nakashima, Marshall Field
  • Patent number: 6773614
    Abstract: Electrically conductive film, used for electroluminescent displays and electroplated films, treated by printing with ink on the surface of the film, the ink causing activation of the film wherever printing occurs.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: August 10, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Marshall Field
  • Publication number: 20040146812
    Abstract: A composition, method, and system for recording an image. The system includes a multiphase imaging material in which energy is absorbed by an antenna material. The absorbed energy causes the reaction of an activator and a color-forming material.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Inventors: Makarand P. Gore, Marshall Field, Vladek P. Kasperchik
  • Patent number: 6737025
    Abstract: A scent storage device including a base member and a plurality of scent channels carried by the base member. Each scent channel includes a scent material supply and a scent activation system that selectively activates predetermined portions of the scent material supply.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: May 18, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Melissa D. Boyd, Paul H. McClelland, Marshall Field
  • Publication number: 20030222965
    Abstract: A method of marking an optical recording medium is provided. The method includes providing a curable material on a non-data surface of the optical recording medium. An energy source interacts with the curable material to form permanent text and/or images on the optical recording medium. The energy source includes a laser that produces energy at a frequency absorbed by the curable material. The method does not require specialized equipment and allows for increased amounts of information to be marked on the optical recording medium.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventor: Marshall Field
  • Publication number: 20030192855
    Abstract: Electrically conductive film, used for electroluminescent displays and electroplated films, treated by printing with ink on the surface of the film, the ink causing deactivation of the film wherever printing occurs.
    Type: Application
    Filed: April 16, 2002
    Publication date: October 16, 2003
    Inventor: Marshall Field