Patents by Inventor Kwangyeol Lee

Kwangyeol Lee 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: 10077191
    Abstract: A method for manufacturing a carbon nanotube (CNT) of a predetermined length is disclosed. The method includes generating an electric field to align one or more CNTs and severing the one or more aligned CNTs at a predetermined location. The severing each of the aligned CNTs may include etching the predetermined location of the one or more aligned CNTs and applying a voltage across the one or more etched CNTs.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: September 18, 2018
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Kwangyeol Lee
  • Patent number: 9370047
    Abstract: Apparatuses and techniques relating to a resistive heating device are provided.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: June 14, 2016
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Kwangyeol Lee
  • Publication number: 20150336798
    Abstract: A method for manufacturing a carbon nanotube (CNT) of a predetermined length is disclosed. The method includes generating an electric field to align one or more CNTs and severing the one or more aligned CNTs at a predetermined location. The severing each of the aligned CNTs may include etching the predetermined location of the one or more aligned CNTs and applying a voltage across the one or more etched CNTs.
    Type: Application
    Filed: July 30, 2015
    Publication date: November 26, 2015
    Inventor: Kwangyeol LEE
  • Patent number: 9168680
    Abstract: One or more techniques for nano structure fabrication are provided. In an embodiment, an apparatus for manufacturing a nano structure is disclosed. The apparatus includes a stamp having a line pattern on a surface thereof that comprises a plurality of protrusions, a die configured to hold a substrate thereon, and a mechanical processing unit configured to press the plurality of protrusions of the stamp against the substrate with a predetermined pressure so as to form at least one channel pore therebetween.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: October 27, 2015
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Kwangyeol Lee
  • Patent number: 9162002
    Abstract: Disclosed are reactive fibers having a polycationic exterior surface to which multivalent peroxy anions are bound. The use of such fibers, mats of such fibers, and filters of such fibers, as well as methods of treating fluid streams, and rejuvenating such fibers, mats and filters are also disclosed.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: October 20, 2015
    Assignee: Empire Technology Development LLC
    Inventors: Kwangyeol Lee, Seth Adrian Miller
  • Patent number: 9164198
    Abstract: Compositions, structures and methods that relate to films having switchable reflectivity and anti-reflectivity depending on ambient conditions, such as temperature. A film with switchable reflectivity and anti-reflectivity includes a nanostructured first layer having nanopillars associated with nanowells. A hydrogel occupies at least a portion of the nanowells. As the hydrogel moves from a dehydrated state to a hydrated state, the surface of the film switches from being reflective to being anti-reflective in a repeatable and reversible process.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: October 20, 2015
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kwangyeol Lee, Donghoon Choi
  • Patent number: 9126836
    Abstract: A method for manufacturing a carbon nanotube (CNT) of a predetermined length is disclosed. The method includes generating an electric field to align one or more CNTs and severing the one or more aligned CNTs at a predetermined location. The severing each of the aligned CNTs may include etching the predetermined location of the one or more aligned CNTs and applying a voltage across the one or more etched CNTs.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: September 8, 2015
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Kwangyeol Lee
  • Patent number: 9102515
    Abstract: Nano structure patterning formation includes coating a part of a structural guide with a hydrophobic polymer, positioning the structural guide on a substrate, coating at least a part of the substrate with a film made of a block copolymer, and annealing the film made of the block copolymer to align the block copolymer.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: August 11, 2015
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Kwangyeol Lee
  • Patent number: 9095855
    Abstract: Structures and apparatuses for fabricating magnetic nanoparticles are provided. In one embodiment, a structure for fabricating magnetic nanoparticles is described including a substrate that defines at least one cavity through a portion thereof, and an agglomerate of magnetic nanoparticles within the at least one cavity, wherein the at least one cavity has an aspect ratio of greater than one.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: August 4, 2015
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Kwangyeol Lee
  • Patent number: 9062210
    Abstract: A method of treating wood including providing wood having an outer layer, the outer layer including an acetylated wood cell wall; and applying a supercritical fluid mixture to the outer layer to form a treated wood, in which the supercritical fluid mixture includes a silicate precursor dissolved in a supercritical fluid, and in which the silicate precursor is attached to the acetylated wood cell wall in the treated wood is described. A glass fortified wood composition having: an acetylated wood cell wall; and a silicate precursor including a long chain alkyl group, in which the long chain alkyl group of the silicate precursor is embedded into the acetylated wood cell wall. A kit for treating wood is described including a silicate precursor; a supercritical fluid; and a catalyst capable of facilitating the formation of Si—O—Si linkages. The silicate precursor may be dissolved in the supercritical fluid.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: June 23, 2015
    Assignee: Empire Technology Development LLC
    Inventor: Kwangyeol Lee
  • Patent number: 8951611
    Abstract: Methods of treating wood including modifying a cell wall of the wood to be positively charged to form a cationic wood cell wall; and contacting a negatively charged silicon layer to the cationic wood cell wall to form a barrier, wherein the negatively charged silicon layer includes a silicate ester group, a silinol group, a silicon oxide group or a combination thereof are described. Treated wood compositions including a wood structure having an outer layer including a wood cell having a cell wall attached to a silicon layer which includes a silicate ester group, a silinol group, a silicon oxide group or a combination thereof are also described.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: February 10, 2015
    Assignee: Empire Technology Development LLC
    Inventors: Kwangyeol Lee, Kraig Anderson
  • Patent number: 8920696
    Abstract: A nano pattern writer includes an array of nano needles extending from a groove in a substrate. A first portion of each nano needle is located in a respective groove of the first layer and the second portion extends from the groove. The nano pattern writer includes a second layer covering the first layer such that the first portion of the nano needles is secured between the first layer and the second layer.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 30, 2014
    Assignee: Korea University Research and Business Foundation
    Inventor: Kwangyeol Lee
  • Publication number: 20140295325
    Abstract: A self-assembly platinum nanostructure with a three dimensional network structure contains a plurality of platinum nanoparticles having a cubic shape, wherein the plurality of platinum nanoparticles gather to form a cubic shape and are disposed in a {111} direction.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Kwangyeol LEE, Jongsik PARK, Seyoung KOO
  • Publication number: 20140231386
    Abstract: Compositions, structures and methods that relate to films having switchable reflectivity and anti-reflectivity depending on ambient conditions, such as temperature. A film with switchable reflectivity and anti-reflectivity includes a nanostructured first layer having nanopillars associated with nanowells. A hydrogel occupies at least a portion of the nanowells. As the hydrogel moves from a dehydrated state to a hydrated state, the surface of the film switches from being reflective to being anti-reflective in a repeatable and reversible process.
    Type: Application
    Filed: April 23, 2014
    Publication date: August 21, 2014
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kwangyeol LEE, Donghoon CHOI
  • Patent number: 8741417
    Abstract: Compositions, structures and methods that relate to films having switchable reflectivity and anti-reflectivity depending on ambient conditions, such as temperature. A film with switchable reflectivity and anti-reflectivity includes a nanostructured first layer having nanopillars associated with nanowells. A hydrogel occupies at least a portion of the nanowells. As the hydrogel moves from a dehydrated state to a hydrated state, the surface of the film switches from being reflective to being anti-reflective in a repeatable and reversible process.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: June 3, 2014
    Assignee: Korea University Research and Business Foundation
    Inventors: Kwangyeol Lee, Donghoon Choi
  • Publication number: 20140042150
    Abstract: Apparatuses and techniques relating to a resistive heating device are provided.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Kwangyeol LEE
  • Publication number: 20140044933
    Abstract: Nano structure patterning formation includes coating a part of a structural guide with a hydrophobic polymer, positioning the structural guide on a substrate, coating at least a part of the substrate with a film made of a block copolymer, and annealing the film made of the block copolymer to align the block copolymer.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Kwangyeol LEE
  • Patent number: 8608468
    Abstract: Nanoimprint molds for molding a surface of a material are provided. A nanoimprint mold includes a body with a molding surface that is formed by shaped nanopillars. The nanopillars may be formed on a substrate and shaped by performing at least a first partial oxidation of the nanopillars and then removing at least a portion of the oxidized material. Once shaped, a hard substance is deposited on the nanopillars to begin forming the molding surface of the nanoimprint mold. The deposition of a hard substance is followed by the deposition of carbon nanotube on the hard substance and then the removal of the substrate and nanopillars from the molding surface.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: December 17, 2013
    Assignee: Korea University Research and Business Foundation
    Inventor: Kwangyeol Lee
  • Patent number: 8592732
    Abstract: Apparatuses and techniques relating to a resistive heating device are provided.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: November 26, 2013
    Assignee: Korea University Research and Business Foundation
    Inventor: Kwangyeol Lee
  • Patent number: 8574384
    Abstract: Methods and systems for identifying and sorting of different plastics rely on the differences in the surface polarity of the various plastics. A marking system may be used which provides markers that adhere specifically to only one type of plastic, and the adhering markers may then allow for a positive identification of the plastic. This type of system may be used for the identification and separation of polylactic acid plastics from various other plastics.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: November 5, 2013
    Assignee: Empire Technology Development LLC
    Inventor: Kwangyeol Lee