Patents Examined by Daniel H Miller
  • Patent number: 11319210
    Abstract: A method of making a stretchable film structure is provided. An elastic substrate is pre-stretched in a first direction and a second direction to obtain a pre-stretched elastic substrate. A carbon nanotube film structure is laid on a surface of the pre-stretched elastic substrate. The carbon nanotube film structure comprises a plurality of super-aligned carbon nanotube films stacked with each other. The pre-stretching the elastic substrate is removed and a plurality of wrinkles is formed on a surface of the carbon nanotube film structure to form the stretchable film structure. The present disclosure also relates to the stretchable film structure obtained by the above method.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 3, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yang Yu, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 11315853
    Abstract: Carbon nanotube (CNT) forests or sheets coated and/or bonded at room temperature with one or more coatings were measured to produce thermal resistances that are on par with conventional metallic solders. These results were achieved by reducing the high contact resistance at CNT tips and/or sidewalls, which has encumbered the development of high-performance thermal interface materials based on CNTs. Resistances as low as 4.9±0.3 mm2-K/W were achieved for the entire polymer-coated CNT interface structure.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 26, 2022
    Assignee: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Baratunde Cola, Virendra Singh, Thomas L. Bougher, John H. Taphouse
  • Patent number: 11274044
    Abstract: The present invention relates to a method for producing an aerogel blanket exhibiting excellent hydrophobicity at high temperatures and an aerogel blanket produced thereby. The present invention uses a mixture of silica sol and a hydrophobic aerogel powder as an aerogel precursor and thus can achieve hydrophobicity in the internal structure as well as on the surface of the aerogel included in the aerogel blanket. Accordingly, the aerogel blanket can attain high hydrophobicity and thus can exhibit excellent hydrophobicity retention ability even in high-temperature applications.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: March 15, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Mi Ri Kim, Kyoung Shil Oh, Je Kyun Lee, Young Hun Kim
  • Patent number: 11247903
    Abstract: Provided is a physical vapor deposition (PVD) method in which a thick, hard carbon film having excellent durability can be formed, and chipping resistance and wear resistance can bot be achieved while improving the low friction properties and peeling resistance of the formed hard carbon film. Provided is a coating film having a total film thickness of greater than 1 ?m and less than or equal to 50 ?m, wherein, when observed using a bright field TEM image, the cross section of the coating film is revealed to consist of relatively white hard carbon layers and relatively black hard carbon layers alternately stacked in the thickness direction, and the white hard carbon layers have a region having a columns-shape, which has grown in the thickness direction.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 15, 2022
    Assignee: NIPPON ITF, INC.
    Inventors: Hideki Moriguchi, Akinori Shibata
  • Patent number: 11225713
    Abstract: A method of making a transparent conductive graphene hybrid, comprising the steps of providing a PMMA/Graphene hybrid, functionalizing the PMMA/Graphene hybrid, providing a transparent substrate, oxidizing the transparent substrate, treating the oxidized substrate and forming a functionalized substrate, applying the PMMA/Graphene hybrid to the functionalized substrate, removing the PMMA, and forming a transparent conductive graphene hybrid. A transparent conductive graphene hybrid comprising a transparent substrate, wherein the transparent substrate is oxidized, and wherein the transparent substrate is treated with TFPA-NH2 to form a functionalized substrate, and a layer of graphene on the functionalized substrate.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: January 18, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Evgeniya H. Lock, Nicholas A. Charipar, Alberto Piqué
  • Patent number: 11221436
    Abstract: An optical absorber and method of manufacture is disclosed. A non-woven sheet of randomly-organized horizontally-oriented carbon nanotubes (CNTs) is subjected to a laser rasterizing treatment at ambient temperature and pressure. The upper surface of the sheet is functionalized by oxygen and hydrogen atoms resulting in improved absorbance properties as compared to untreated CNT sheets as well as to commercial state-of-art black paints. Laser treatment conditions may also be altered or modulated to provide surface texturing in addition to functionalization to enhance light trapping and optical absorbance properties.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: January 11, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: John A. Starkovich, Kevin J. Salvini, Edward M. Silverman
  • Patent number: 11214860
    Abstract: A method for making a carbon fiber film includes suspending a carbon nanotube film in a chamber. A negative voltage is applied to the carbon nanotube film. A carbon source gas is supplied into the chamber, wherein the carbon source gas is cracked to form carbon free radicals, and the carbon free radicals are graphitized to form a graphite layer on the carbon nanotube film.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: January 4, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jiang-Tao Wang, Wei Zhao, Peng Liu, Yang Wei, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 11208740
    Abstract: The method for producing a carbon nanotube yarn includes preparing a vertically-aligned carbon nanotube that is disposed on a substrate and is aligned vertically to the substrate; preparing a rotating body having a groove on a circumferential face; drawing a plurality of carbon nanotubes from the vertically-aligned carbon nanotube continuously and linearly to prepare a carbon nanotube single yarn, and arranging the plurality of carbon nanotube single yarns in parallel to prepare a carbon nanotube web; winding the carbon nanotube web around the circumferential face of the rotating body so as to fit in the groove; and drawing the carbon nanotube web from the rotating body.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: December 28, 2021
    Assignee: HITACHI ZOSEN CORPORATION
    Inventor: Tetsuya Inoue
  • Patent number: 11186732
    Abstract: A method for manufacturing a vertically aligned carbon nanotube substrate includes the steps of treating a vertically aligned carbon nanotube array in an untreated state with a plasma to generate a vertically aligned carbon nanotube array in a plasma-treated state and adhering a coating onto at least a portion of the vertically aligned carbon nanotube array in the plasma-treated state to generate a vertically aligned carbon nanotube array in a coated state. The step of treating can include exposing the vertically aligned carbon nanotube substrate in the untreated state to the plasma in a plasma chamber. The step of adhering can include using a process of thermal evaporation or e-beam ablation. The method can also include the step of adhering a plurality of fluorophores to at least a portion of the vertically aligned carbon nanotube array in the coated state.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: November 30, 2021
    Assignee: IRONWOOD 12 LLC
    Inventor: Christopher J. Fleming
  • Patent number: 11142454
    Abstract: The present invention concerns a hydrogen store comprising a composite material including a hydrogenable material, a method for producing the hydrogen store and a device for producing the hydrogen store.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: October 12, 2021
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Antonio Casellas, Klaus Dollmeier, Eberhard Ernst, Markus Laux, Lars Wimbert
  • Patent number: 11105567
    Abstract: A thermal management assembly comprising a bulk graphene material and a metal-based coating layer disposed on opposing surfaces of the bulk graphene core material comprising an agent that is reactive with the graphene to form a carbide. The metal-based coating layer can serve as an outer layer of the assembly or can serve to bond the graphene to other materials encapsulating the graphene core. The metal-based coating layer with the reactive agent provides an assembly exhibiting excellent thermal conductivity properties and greatly improved thermal interface resistance.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 31, 2021
    Assignee: Momentive Performance Materials Quartz, Inc.
    Inventors: Wei Fan, Xiang Liu, John Mariner, Aaron Rape
  • Patent number: 11092722
    Abstract: An optical absorber and method of manufacture is disclosed. A non-woven sheet of randomly-organized horizontally-oriented carbon nanotubes (CNTs) is subjected to a laser rasterizing treatment at ambient temperature and pressure. The upper surface of the sheet is functionalized by oxygen and hydrogen atoms resulting in improved absorbance properties as compared to untreated CNT sheets as well as to commercial state-of-art black paints. Laser treatment conditions may also be altered or modulated to provide surface texturing in addition to functionalization to enhance light trapping and optical absorbance properties.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: August 17, 2021
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: John A. Starkovich, Kevin J. Salvini, Edward M. Silverman
  • Patent number: 11062818
    Abstract: Example embodiments relate to a stacking structure having a material layer formed on a graphene layer, and a method of forming the material layer on the graphene layer. In the stacking structure, when the material layer is formed on the graphene layer by using an ALD method, an intermediate layer as a seed layer may be formed on the graphene layer by using a linear type precursor.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: July 13, 2021
    Assignees: Samsung Electronics Co., Ltd., SUNGKYUNKWAN UNIVERSITY RESEARCH & BUSINESS FOUNDATION
    Inventors: Seong-jun Jeong, Seong-jun Park, Hyeon-jin Shin, Yea-hyun Gu, Hyoung-sub Kim, Jae-hyun Yang
  • Patent number: 11040883
    Abstract: Provided is a graphite plate, consisting essentially of: graphite; and pores, wherein said graphite plate has a porosity from 1% to 30%. Further provided is a method for producing a graphite plate, including: applying welding pressure to at least one glass-like carbon material in a state in which said at least one glass-like carbon material is maintained in an inert atmosphere under heating conditions, to produce a graphite plate having a porosity from 1% to 30%.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: June 22, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hidetoshi Kitaura, Naomi Nishiki, Atsushi Tanaka, Kimiaki Nakaya
  • Patent number: 11021368
    Abstract: A carbon nanotube (CNT) sheet containing CNTs having a median length of at least 0.05 mm and an aspect ratio of at least 2,500; L arranged b a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.0. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the •filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electromagnetic wave absorption, lightning strike dissipation. EMI shielding, thermal interface pads, energy storage, and heat dissipation.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: June 1, 2021
    Assignee: General Nano LLC
    Inventors: Chaminda Jayasinghe, Larry Allen Christy, Edward Ming Chan
  • Patent number: 11015037
    Abstract: A method of manufacturing a graphene sheet comprising the steps of: providing a container containing liquid and a volume above the liquid; supplying carbon atoms to the volume; and allowing carbon atoms to settle on the surface of the liquid and to coalesce to form the graphene sheet.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 25, 2021
    Assignee: BAE Systems plc
    Inventor: Nicholas Giacomo Robert Colosimo
  • Patent number: 11008673
    Abstract: In order to provide a method for preparing a chalcogenide-carbon nanofiber, capable of implementing oxidation resistance characteristics and process simplification, the present invention provides a method for preparing a chalcogenide-carbon nanofiber and a chalcogenide-carbon nanofiber implemented by using the same, the method comprising the steps of: forming a chalcogenide precursor-organic nanofiber comprising a chalcogenide precursor and an organic material; and forming a chalcogenide-carbon nanofiber by selectively and oxidatively heat treating the chalcogenide precursor-organic nanofiber such that the carbon of the organic material is oxidized and the chalcogenide is reduced at the same time, wherein the oxidation reactivity of the chalcogenide is lower than that of carbon, the selective and oxidative heat treatment is carried out through one heat treatment step instead of a plurality of heat treatment steps, and the chalcogenide can form a chalcogenide-carbon nanofiber having a structure formed with at
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 18, 2021
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Young Chang Joo, Dae Hyun Nam
  • Patent number: 11001922
    Abstract: Provided herein is a carbon based coating and methods of producing the same. The carbon based coating comprising an amorphous carbon thin film deposited on a substrate, the carbon based coating characterized in that the carbon based coating imparts enhanced surface durability properties.
    Type: Grant
    Filed: November 17, 2012
    Date of Patent: May 11, 2021
    Assignee: United Protective Technologies, LLC
    Inventors: Brent William Barbee, Jordan Moriah Larson, Michael Raymond Greenwald, Christopher Shane Alexander, Matthew James Decourcelle, Jamey Tollfeldt Ewing
  • Patent number: 10975469
    Abstract: Described herein are articles, systems and methods where a plasma resistant coating is deposited onto a surface of a porous chamber component and onto pore walls within the porous chamber component using an atomic layer deposition (ALD) process. The porous chamber component may include a porous body comprising a plurality of pores within the porous body, the plurality of pores each comprising pore walls. The porous body is permeable to a gas. The plasma resistant coating may have a thickness of about 5 nm to about 3 ?m, and may protect the pore walls from erosion. The porous body with the plasma resistant coating remains permeable to the gas.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: April 13, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Vahid Firouzdor, Sumanth Banda, Rajinder Dhindsa, Daniel Byun, Dana Marie Lovell
  • Patent number: 10971279
    Abstract: A manufacturing method of a high thermal conductive hybrid film includes steps as follows. A graphene oxide solution including a plurality of graphene oxides is prepared. A nano-particle solution including a plurality of nano initial hybrid structures is prepared. A mixing process is provided, wherein the mixing process is for mixing the graphene oxide solution and the nano-particle solution to obtain a mixing solution. A preliminary-film forming process is provided, wherein the preliminary-film forming process is for filtrating the mixing solution and then remaining a mixture of the graphene oxides and the nano initial hybrid structures to form a preliminary film. A heating process is provided, wherein the heating process is for heating the preliminary-film to reduce the graphene oxides as a plurality of reduced graphene oxides and convert the nano initial hybrid structures into a plurality of nano hybrid structures.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: April 6, 2021
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Nyan-Hwa Tai, Hui-Ching Yuan