Patents Examined by Daniel H Miller
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Patent number: 11319210Abstract: 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: GrantFiled: April 9, 2019Date of Patent: May 3, 2022Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Yang Yu, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 11315853Abstract: 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: GrantFiled: November 4, 2019Date of Patent: April 26, 2022Assignee: GEORGIA TECH RESEARCH CORPORATIONInventors: Baratunde Cola, Virendra Singh, Thomas L. Bougher, John H. Taphouse
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Patent number: 11274044Abstract: 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: GrantFiled: March 8, 2017Date of Patent: March 15, 2022Assignee: LG CHEM, LTD.Inventors: Mi Ri Kim, Kyoung Shil Oh, Je Kyun Lee, Young Hun Kim
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Patent number: 11247903Abstract: 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: GrantFiled: March 2, 2017Date of Patent: February 15, 2022Assignee: NIPPON ITF, INC.Inventors: Hideki Moriguchi, Akinori Shibata
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Patent number: 11225713Abstract: 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: GrantFiled: April 20, 2017Date of Patent: January 18, 2022Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Evgeniya H. Lock, Nicholas A. Charipar, Alberto Piqué
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Patent number: 11221436Abstract: 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: GrantFiled: June 22, 2021Date of Patent: January 11, 2022Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: John A. Starkovich, Kevin J. Salvini, Edward M. Silverman
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Patent number: 11214860Abstract: 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: GrantFiled: May 17, 2017Date of Patent: January 4, 2022Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jiang-Tao Wang, Wei Zhao, Peng Liu, Yang Wei, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 11208740Abstract: 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: GrantFiled: January 26, 2017Date of Patent: December 28, 2021Assignee: HITACHI ZOSEN CORPORATIONInventor: Tetsuya Inoue
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Patent number: 11186732Abstract: 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: GrantFiled: June 13, 2017Date of Patent: November 30, 2021Assignee: IRONWOOD 12 LLCInventor: Christopher J. Fleming
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Patent number: 11142454Abstract: 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: GrantFiled: May 4, 2015Date of Patent: October 12, 2021Assignee: GKN Sinter Metals Engineering GmbHInventors: Antonio Casellas, Klaus Dollmeier, Eberhard Ernst, Markus Laux, Lars Wimbert
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Patent number: 11105567Abstract: 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: GrantFiled: September 24, 2013Date of Patent: August 31, 2021Assignee: Momentive Performance Materials Quartz, Inc.Inventors: Wei Fan, Xiang Liu, John Mariner, Aaron Rape
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Patent number: 11092722Abstract: 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: GrantFiled: April 6, 2018Date of Patent: August 17, 2021Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: John A. Starkovich, Kevin J. Salvini, Edward M. Silverman
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Patent number: 11062818Abstract: 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: GrantFiled: January 2, 2015Date of Patent: July 13, 2021Assignees: Samsung Electronics Co., Ltd., SUNGKYUNKWAN UNIVERSITY RESEARCH & BUSINESS FOUNDATIONInventors: Seong-jun Jeong, Seong-jun Park, Hyeon-jin Shin, Yea-hyun Gu, Hyoung-sub Kim, Jae-hyun Yang
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Patent number: 11040883Abstract: 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: GrantFiled: April 12, 2017Date of Patent: June 22, 2021Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hidetoshi Kitaura, Naomi Nishiki, Atsushi Tanaka, Kimiaki Nakaya
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Patent number: 11021368Abstract: 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: GrantFiled: July 30, 2015Date of Patent: June 1, 2021Assignee: General Nano LLCInventors: Chaminda Jayasinghe, Larry Allen Christy, Edward Ming Chan
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Patent number: 11015037Abstract: 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: GrantFiled: September 22, 2015Date of Patent: May 25, 2021Assignee: BAE Systems plcInventor: Nicholas Giacomo Robert Colosimo
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Patent number: 11008673Abstract: 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 atType: GrantFiled: July 29, 2016Date of Patent: May 18, 2021Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Young Chang Joo, Dae Hyun Nam
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Patent number: 11001922Abstract: 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: GrantFiled: November 17, 2012Date of Patent: May 11, 2021Assignee: United Protective Technologies, LLCInventors: Brent William Barbee, Jordan Moriah Larson, Michael Raymond Greenwald, Christopher Shane Alexander, Matthew James Decourcelle, Jamey Tollfeldt Ewing
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Patent number: 10975469Abstract: 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: GrantFiled: March 17, 2017Date of Patent: April 13, 2021Assignee: APPLIED MATERIALS, INC.Inventors: Vahid Firouzdor, Sumanth Banda, Rajinder Dhindsa, Daniel Byun, Dana Marie Lovell
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Patent number: 10971279Abstract: 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: GrantFiled: September 18, 2018Date of Patent: April 6, 2021Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Nyan-Hwa Tai, Hui-Ching Yuan