Patents by Inventor Yoocham Jeon

Yoocham Jeon 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: 9716224
    Abstract: A memristor device with a thermally-insulating cladding includes a first electrode, a second electrode, a memristor, and a thermally-insulating cladding. The memristor is coupled in electrical series between the first electrode and the second electrode. The thermally-insulating cladding surrounds at least a portion of the memristor.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: July 25, 2017
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Gary Gibson, Richard Henze, Warren Jackson, Yoocham Jeon
  • Publication number: 20160343431
    Abstract: A device includes a cross-point array and an access circuit to access subsets of memory elements respectively corresponding to encoded blocks of data. For each of the subsets of memory elements, a row or a column of the cross-point array that includes a first memory element in the subset and a second memory element in the subset further includes a third memory element that is between the first and second memory elements along the row or column and is in one of the subsets corresponding to another of the encoded blocks.
    Type: Application
    Filed: January 31, 2014
    Publication date: November 24, 2016
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Gregg B. Lesartre, Gary Gibson, Erik Ordentlich, Yoocham Jeon
  • Patent number: 9217906
    Abstract: In one embodiment, a display element includes a first electrode; a dielectric layer having recessed regions therein over the first electrode; a second electrode disposed on the dielectric layer; and a fluid with colorant particles within the display element, wherein a voltage signal applied to the first electrode and the second electrode controls movement of the colorant particles such that a first voltage signal provides a first optical state by compacting the colorant particles into the recessed regions and a second voltage signal provides a second optical state by spreading the colorant particles in the fluid.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: December 22, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jong-Souk Yeo, Yoocham Jeon, Michael G. Groh
  • Publication number: 20120019899
    Abstract: In one embodiment, a display element includes a first electrode; a dielectric layer having recessed regions therein over the first electrode; a second electrode disposed on the dielectric layer; and a fluid with colorant particles within the display element, wherein a voltage signal applied to the first electrode and the second electrode controls movement of the colorant particles such that a first voltage signal provides a first optical state by compacting the colorant particles into the recessed regions and a second voltage signal provides a second optical state by spreading the colorant particles in the fluid.
    Type: Application
    Filed: November 6, 2009
    Publication date: January 26, 2012
    Inventors: Jong-Souk Yeo, Yoocham Jeon, Michael G. Groh
  • Patent number: 7445742
    Abstract: A method and mold for creating nanoscale patterns in an ion-selective polymer membrane is provided, in which a mold comprising a substrate and a molding layer having at least one protruding feature is imprinted on the ion-selective polymer membrane, thereby creating a recessed feature in the membrane. Protruding features having nanoscale dimensions can be created, e.g., by using self-assembled nanostructures as a shadow mask for etching a molding layer. In one embodiment, an imprinted ion selective polymer membrane, suitable for use as a solid electrolyte, is adapted for use in an electrochemical device or fuel cell by adding a metal catalyst to one portion of the membrane to serve as a catalytic electrode.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: November 4, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Yong Chen, David Hacklernan, Laurie S. Mittelstadt, Yoocham Jeon, Richard Stanley Williams
  • Patent number: 7435497
    Abstract: A metal-coated, wire-reinforced polymer electrolyte membrane that is permeable only to protons and hydrogen is disclosed. The metal-coated, wire-reinforced polymer electrolyte membrane has a surface microsturcture that prevents cracking of the metal coating during hydration. The metal-coated, wire-reinforced polymer electrolyte membrane can be used in liquid-type fuel cells to prevent crossover of fuel, gas and impurities.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: October 14, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alfred I-Tsung Pan, Yoocham Jeon
  • Patent number: 7371481
    Abstract: An electrode is disclosed. The electrode includes a substrate having macropores therein. A barrier support layer, established on the substrate, has micropores therein. The macropores and at least some of the micropores are substantially lined with an electrolyte layer. A catalyst is in ionic contact with the electrolyte layer. A current collector is in electrical contact with the catalyst. A barrier layer is established on the barrier support layer and is electrically isolated from the current collector.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: May 13, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Laurie S. Mittelstadt, Patricia A. Beck, Yoocham Jeon, Alfred I-Tsung Pan
  • Patent number: 7062848
    Abstract: Compositions and methods for production of conductive paths can include a printable composition including a liquid carrier and a plurality of nanostructures. The plurality of nanostructures can have an aspect ratio of at least about 5:1 within the liquid carrier. Examples of nanostructures include nanobelts, nanoplates, nanodiscs, nanowires, nanorods, and mixtures of these materials. These printable compositions can be used to form a conductive path on a substrate. The printable composition can be applied to a substrate using any number of conventional printing techniques. Following application of the printable composition, at least a portion of the liquid carrier can be removed such that the nanostructures can be in sufficient contact to provide a conductive path. The nanostructures arranged in a conductive path can be sintered or used as a conductive material without sintering.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: June 20, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alfred I-Tsung Pan, Yoocham Jeon, Scott Haubrich
  • Publication number: 20060083852
    Abstract: Metal-coated polymer electrolyte membranes permeable to protons/hydrogen and methods of manufacturing thereof are disclosed. A fuel cell may be produced using a substrate, with the resultant design having a thin metal layer, such as palladium, positioned between two layers of a porous metal, such as palladium black, and optionally at least one layer of a polymer electrolyte. An alternate design uses at least one layer of a porous metal, such as palladium black, and optionally one or more layers of platinum black, in combination with a mold, sacrificial layer, and optional microstructure.
    Type: Application
    Filed: October 18, 2004
    Publication date: April 20, 2006
    Inventor: Yoocham Jeon
  • Publication number: 20060027101
    Abstract: A metal-coated, wire-reinforced polymer electrolyte membrane that is permeable only to protons and hydrogen is disclosed. The metal-coated, wire-reinforced polymer electrolyte membrane has a surface microsturcture that prevents cracking of the metal coating during hydration. The metal-coated, wire-reinforced polymer electrolyte membrane can be used in liquid-type fuel cells to prevent crossover of fuel, gas and impurities.
    Type: Application
    Filed: October 12, 2005
    Publication date: February 9, 2006
    Inventors: Alfred Pan, Yoocham Jeon
  • Patent number: 6977009
    Abstract: A metal-coated, wire-reinforced polymer electrolyte membrane that is permeable only to protons and hydrogen is disclosed. The metal-coated, wire-reinforced polymer electrolyte membrane has a surface microstructure that prevents cracking of the metal coating during hydration. The metal-coated, wire-reinforced polymer electrolyte membrane can be used in liquid-type fuel cells to prevent crossover of fuel, gas and impurities.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: December 20, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alfred I-Tsung Pan, Yoocham Jeon
  • Publication number: 20050037916
    Abstract: A method and mold for creating nanoscale patterns in an ion-selective polymer membrane is provided, in which a mold comprising a substrate and a molding layer having at least one protruding feature is imprinted on the ion-selective polymer membrane, thereby creating a recessed feature in the membrane. Protruding features having nanoscale dimensions can be created, e.g., by using self-assembled nanostructures as a shadow mask for etching a molding layer. In one embodiment, an imprinted ion selective polymer membrane, suitable for use as a solid electrolyte, is adapted for use in an electrochemical device or fuel cell by adding a metal catalyst to one portion of the membrane to serve as a catalytic electrode.
    Type: Application
    Filed: August 15, 2003
    Publication date: February 17, 2005
    Inventors: Yong Chen, David Hacklernan, Laurie Mittchstadt, Yoocham Jeon, Richad Williams
  • Publication number: 20040191599
    Abstract: Highly discriminating, inexpensive proton-exchange membranes that allow for relatively high flux of protons across the membrane. In one embodiment, an artificial lipid-bilayer membrane is created to include biological hydrogen-ion transport channels. The biological hydrogen-ion transport channels may alternatively be intact hydrogen-ion transport proteins, synthetic hydrogen-ion channel cores from hydrogen-ion transport proteins, or additional types of hydrogen-ion transport molecules that stably reside within a lipid-bilayer membrane.
    Type: Application
    Filed: March 27, 2003
    Publication date: September 30, 2004
    Inventors: Warren B. Jackson, Yoocham Jeon
  • Publication number: 20040028973
    Abstract: A metal-coated, wire-reinforced polymer electrolyte membrane that is permeable only to protons and hydrogen is disclosed. The metal-coated, wire-reinforced polymer electrolyte membrane has a surface microsturcture that prevents cracking of the metal coating during hydration. The metal-coated, wire-reinforced polymer electrolyte membrane can be used in liquid-type fuel cells to prevent crossover of fuel, gas and impurities.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 12, 2004
    Inventors: Alfred I-Tsung Pan, Yoocham Jeon