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).
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Patent number: 8198527Abstract: A wrapped thermoelectric power source having an inner and an outer insulator is provided within a housing formed, at least partially, by an upper and lower thermal transfer elements. The thermoelectric power source including a plurality of coupled pairs of thin film materials possessing thermoelectric properties, the pairs disposed on a flexible substrate and electrically coupled in any series/parallel combination, with the flexible substrate wrapped around an inner thermal insulator. The thermoelectric power source may be sized such that at least a portion of an electronics module may be disposed at least partly within the inner thermal insulator. The electronics module is electrically coupled to the thermoelectric power source, and includes components for voltage regulation and/or power conditioning.Type: GrantFiled: December 8, 2008Date of Patent: June 12, 2012Assignee: Perpetua Power Source Technologies, Inc.Inventors: R. Jon Hofmeister, Craig V. Lucas, Paul H. McClelland, Marshall Field, Marcus S. Ward
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Patent number: 7993807Abstract: 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: GrantFiled: April 28, 2004Date of Patent: August 9, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek Kasperchik, William Dorogy, Makarand Gore, Marshall Field
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Patent number: 7935404Abstract: A method for selectively marking a surface of an optical disk includes providing an optical disk, wherein the optical disk includes a metal, an electrolyte disposed on the metal, and a photoconductor disposed on the electrolyte, applying a voltage to the optical disk, the voltage being associated with a desired anodization color, and selectively applying a laser to the photoconductor to initiate anodization of the metal.Type: GrantFiled: January 31, 2005Date of Patent: May 3, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Marshall Field, Andrew L. Van Brocklin, Paul McClelland
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Publication number: 20100139291Abstract: A wrapped thermoelectric power source having an inner and an outer insulator is provided within a housing formed, at least partially, by an upper and lower thermal transfer elements. The thermoelectric power source including a plurality of coupled pairs of thin film materials possessing thermoelectric properties, the pairs disposed on a flexible substrate and electrically coupled in any series/parallel combination, with the flexible substrate wrapped around an inner thermal insulator. The thermoelectric power source may be sized such that at least a portion of an electronics module may be disposed at least partly within the inner thermal insulator. The electronics module is electrically coupled to the thermoelectric power source, and includes components for voltage regulation and/or power conditioning.Type: ApplicationFiled: December 8, 2008Publication date: June 10, 2010Inventors: R. Jon Hofmeister, Craig V. Lucas, Paul H. McClelland, Marshall Field, Marcus S. Ward
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Patent number: 7733016Abstract: An electroluminescent panel includes a partial electroluminescent panel base, a layer of electrically isolated conductive areas next to the partial electroluminescent panel base, and an activatable conductive layer next to the layer of electrically isolated conductive areas. The activatable conductive layer is selectively activated to electrically connect selected electrically isolated conductive areas together to define one or more electrically isolated conductive electrode regions.Type: GrantFiled: August 20, 2005Date of Patent: June 8, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Terry M. Lambright, Sterling Chaffins, Marshall Field, Chinmay Betrabet, David M Kwasny
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Patent number: 7724431Abstract: A method and apparatus apply an electric field across active layer, wherein active layer is configured to change from a first light attenuating state to a second lesser light attenuating state in response to the applied the electric field and wherein the second lesser light attenuating state permits light to be reflected from a light reflective face.Type: GrantFiled: September 29, 2006Date of Patent: May 25, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Marshall Field, Gregory J. May, Peter J. Fricke, Timothy D. Emmerich
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Publication number: 20080211874Abstract: A fluid ejector head, including a fluid ejector disposed on an ejector support, and a semiconductive junction photo sensor electrically coupled to the fluid ejector. The fluid ejector head also includes a photon source photonically coupled only to the semiconductive junction photo sensor. Photons emitted from the photon source interact with the semiconductive junction photo sensor and generate an activation signal. The activation signal in turn activates the fluid ejector ejecting a fluid away from the fluid ejector.Type: ApplicationFiled: May 5, 2008Publication date: September 4, 2008Inventors: Antonio S. Cruz-Uribe, Mohammad M. Samii, Scott W. Hock, Marshall Field
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Patent number: 7410242Abstract: 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: GrantFiled: September 16, 2005Date of Patent: August 12, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Tony Cruz-Uribe, Morad Samii, Scott W Hock, Marshall Field
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Patent number: 7399062Abstract: 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: GrantFiled: September 11, 2006Date of Patent: July 15, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Antonio S. Cruz-Uribe, Mohammad M Samii, Scott W Hock, Marshall Field
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Publication number: 20080080047Abstract: A method and apparatus apply an electric field across active layer, wherein active layer is configured to change from a first light attenuating state to a second lesser light attenuating state in response to the applied the electric field and wherein the second lesser light attenuating state permits light to be reflected from a light reflective face.Type: ApplicationFiled: September 29, 2006Publication date: April 3, 2008Inventors: Marshall Field, Gregory J. May, Peter J. Fricke, Timothy D. Emmerich
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Patent number: 7270929Abstract: A method and a medium for laser imaging is herein disclosed. The medium incorporates one or more types of microstructures having a predetermined heat or radiation modifiable optical characteristic such as color, scattering, diffusion, diffraction, interference and iridescence. Associated intimately with the microstructures is a radiation antenna that acts to absorb radiation from a radiation source. The radiation antenna and source are attuned to one another to efficiently transfer energy therebetween and subsequently to the microstructures; this transfer of energy results in the modification of an optical characteristic of the microstructures to form an image on the medium. The medium has one or more layers that may include both the radiation antenna and the microstructures. Alternatively, the microstructures and radiation antenna may be included in separate layers. Coatings that incorporate one or more layers that include distinct microstructures and radiation antennae are also contemplated.Type: GrantFiled: February 24, 2005Date of Patent: September 18, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: David M Kwasny, Makarand P. Gore, Marshall Field
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Patent number: 7250930Abstract: 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: GrantFiled: February 7, 2003Date of Patent: July 31, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Randy Hoffman, Michael J. Regan, Susan Nakashima, Marshall Field
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Publication number: 20070090758Abstract: An electroluminescent panel includes a partial electroluminescent panel base and a deactivatable conductive layer next to the partial electroluminescent panel base. The deactivatable conductive layer is selectively deactivated to define one or more electrically isolated conductive regions within the deactivatable conductive layer.Type: ApplicationFiled: October 21, 2005Publication date: April 26, 2007Inventors: David Kwasny, Marshall Field, Sterling Chaffins, Terry Lambright, Douglas Houck
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Publication number: 20070070499Abstract: Embodiments of changing an optical characteristic are disclosed.Type: ApplicationFiled: September 26, 2005Publication date: March 29, 2007Inventors: Peter Fricke, Timothy Emmerich, Marshall Field
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Publication number: 20070042528Abstract: An electroluminescent panel includes a partial electroluminescent panel base, a layer of electrically isolated conductive areas next to the partial electroluminescent panel base, and an activatable conductive layer next to the layer of electrically isolated conductive areas. The activatable conductive layer is selectively activated to electrically connect selected electrically isolated conductive areas together to define one or more electrically isolated conductive electrode regions.Type: ApplicationFiled: August 20, 2005Publication date: February 22, 2007Inventors: Terry Lambright, Sterling Chaffins, Marshall Field, Chinmay Betrabet, David Kwasny
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Publication number: 20070008376Abstract: 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: ApplicationFiled: September 11, 2006Publication date: January 11, 2007Inventors: Antonio Cruz-Uribe, Mohammad Samii, Scott Hock, Marshall Field
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Patent number: 7148182Abstract: 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, moiré, stochastic, etc. in order to provide unique visual effects to the layered composite.Type: GrantFiled: April 27, 2004Date of Patent: December 12, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Marshall Field, David P. Markel, Sandra L. Hill
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Patent number: 7125101Abstract: 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: GrantFiled: July 30, 2003Date of Patent: October 24, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Antonio S. Cruz-Uribe, Mohammad M Samii, Scott W Hock, Marshall Field
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Publication number: 20060188828Abstract: A method and a medium for laser imaging is herein disclosed. The medium incorporates one or more types of microstructures having a predetermined heat or radiation modifiable optical characteristic such as color, scattering, diffusion, diffraction, interference and iridescence. Associated intimately with the microstructures is a radiation antenna that acts to absorb radiation from a radiation source. The radiation antenna and source are attuned to one another to efficiently transfer energy therebetween and subsequently to the microstructures; this transfer of energy results in the modification of an optical characteristic of the microstructures to form an image on the medium. The medium has one or more layers that may include both the radiation antenna and the microstructures. Alternatively, the microstructures and radiation antenna may be included in separate layers. Coatings that incorporate one or more layers that include distinct microstructures and radiation antennae are also contemplated.Type: ApplicationFiled: February 24, 2005Publication date: August 24, 2006Inventors: David Kwasny, Makarand Gore, Marshall Field
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Publication number: 20060171268Abstract: A method for selectively marking a surface of an optical disk includes providing an optical disk, wherein the optical disk includes a metal, an electrolyte disposed on the metal, and a photoconductor disposed on the electrolyte, applying a voltage to the optical disk, the voltage being associated with a desired anodization color, and selectively applying a laser to the photoconductor to initiate anodization of the metal.Type: ApplicationFiled: January 31, 2005Publication date: August 3, 2006Inventors: Marshall Field, Andrew Van Brocklin, Paul McClelland