Product Patents (Class 423/447.2)
  • Patent number: 11223064
    Abstract: Provided is a method of producing a multivalent metal-ion battery comprising an anode, a cathode, and an electrolyte in ionic contact with the anode and the cathode to support reversible deposition and dissolution of a multivalent metal, selected from Ni, Zn, Be, Mg, Ca, Ba, La, Ti, Ta, Zr, Nb, Mn, V, Co, Fe, Cd, Cr, Ga, In, or a combination thereof, at the anode, wherein the anode contains the multivalent metal or its alloy as an anode active material and the cathode comprises a cathode active layer of graphitic carbon particles or fibers that are coated with a protective material. Such a metal-ion battery delivers a high energy density, high power density, and long cycle life.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: January 11, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 11214869
    Abstract: A heat treatment apparatus for high-quality graphene synthesis comprises an upper roll chamber, a deposition chamber connected to the upper roll chamber to deposit graphene on a catalytic metal film, and a lower roll chamber mounted on a lower portion of the deposition chamber. The upper roll chamber includes a supply roller and the lower roll chamber includes a lower direction shifting roller shifting a direction of the catalytic metal film supplied from the supply roller. In the deposition chamber, a catalytic metal film at a supply side transferred from the supply roller to the lower direction shifting roller and a catalytic metal film at a discharge side transferred from the lower direction shifting roller to a winding roller are passed, and a heater portion is mounted around the catalytic metal film at the supply side and the catalytic metal film at the discharge side.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: January 4, 2022
    Assignee: CHARMTRON CO., LTD.
    Inventor: Yong Ki Kim
  • Patent number: 11130678
    Abstract: A novel carbon formation reactor for forming carbon from a carbon-bearing fluidic stream, and method of using the same, is described. The reactor uses a catalyst bearing surface placed within a heated zone in a carbon-bearing fluidic stream to form carbon, which can then be removed from the reactor, with the process repeatable to achieve high extraction efficiencies.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 28, 2021
    Inventors: Paul H. Matter, Michael G. Beachy, James Gaydos
  • Patent number: 11024895
    Abstract: A charging apparatus for a lithium-ion secondary battery in which a cathode, an anode, and an electrolyte are housed in a battery case, includes an electrode shape changing unit that physically changes the shape of at least one electrode of the cathode and the anode at the time of charging or discharging the lithium-ion secondary battery so as to expand at least a part of a void which is formed in the electrode and which is to be penetrated by the electrolyte, and restores the physically changed shape of the electrode after charging or discharging the lithium-ion secondary battery.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: June 1, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Daisuke Akihisa
  • Patent number: 10975501
    Abstract: A method for producing a carbon material, the method including a step of performing a carbonization treatment by heating an organic polymer material to a temperature higher than 400° C. in a non-oxidizing atmosphere containing a gaseous substance (A) composed of at least one of acetylene and an acetylene derivative.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: April 13, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Manabu Yamatani, Tomoyuki Kotani, Tomoyoshi Yamashita, Kazunao Hareyama
  • Patent number: 10947122
    Abstract: The present invention discloses a method for the production of low ash activated charcoal from a carbon-containing raw material such as peat, in which method a damp mass of raw material is subjected to a hydrothermal carbonization process, in which the mass is heated to a temperature of 150 to 350 C and the process pressure increased to 10 to 40 bar, and the carbonized material obtained from the hydrothermal carbonization process is activated by heating it to a temperature above 400° C. The present invention further relates to the use of carbonized material obtained from the hydrothermal carbonization process for the production of activated charcoal.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: March 16, 2021
    Assignee: Vapo Oy
    Inventors: Mika Timonen, Hannu Lamberg
  • Patent number: 10942143
    Abstract: A biosensor electrode, comprising: a porous metal structure; and a carbon nanotube structure comprising a plurality of carbon nanotubes, the carbon nanotube structure is fixed on a surface of the porous metal structure, wherein the porous metal structure and the carbon nanotube structure are shrunk together to form a plurality of wrinkled parts.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: March 9, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Hong-Ying Fu, Wen-Zhen Li
  • Patent number: 10821687
    Abstract: The present invention relates to a method of producing hollow carbon capsules which can simply and effectively produce hollow carbon capsule by using polymer particles as soft templates and using a spray-drying method.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 3, 2020
    Assignee: LG CHEM, LTD.
    Inventors: In Young Kim, Jin Yeong Lee, Kwon Nam Sohn, Eui Yong Hwang, Won Jong Kwon
  • Patent number: 10793964
    Abstract: A method of manufacturing a functionalized pre-treated carbon nanotube. Atomic Layer deposition is utilized to functionalize a pre-treated carbon nanotube. The functionalized pre-treated carbon nanotube may be used in a chemiresistor, including for methane detection.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: October 6, 2020
    Assignees: UChicago Argonne, LLC, The Regents of the University of California
    Inventors: Ralu Divan, M. Tanim Humayun, Igor Paprotny, Lara A. Gundel
  • Patent number: 10774449
    Abstract: The present invention relates to an apparatus for producing a carbon nanotube fiber. The apparatus includes: a vertical reactor having a reaction zone; a concentric double-pipe inlet tube disposed on top of the reaction zone and consisting of an inner pipe through which a spinning feedstock including a spinning solution and a first gas is introduced into the reaction zone and an outer pipe defining a concentric annular portion surrounding the inner pipe and through which a second gas is introduced into the reaction zone; heating means for heating the reaction zone; and a discharge unit disposed under the bottom of the reaction zone to discharge a carbon nanotube fiber therethrough. The spinning feedstock entering the reaction zone through the inner pipe of the inlet tube is carbonized and graphitized while flowing from the top to the bottom of the reaction zone to form a carbon nanotube fiber consisting of a continuous sock (or aggregates) of carbon nanotubes.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: September 15, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Ki Yong Yoon, YoungHo Lee, Ji Eun Kim, Yongjin Choe
  • Patent number: 10759663
    Abstract: A catalyst composition for the production of carbon nanotubes (CNT) with controlled morphology is disclosed. The catalyst is represented by formula [(MxMny)Moz][binary metal oxide](100?(x+y+z)), where x is in the range 1 to 25 wt %, y is in the range 0.1 to 20 wt %, and z is in the range 0.0 to 10 wt %. Further M represents either iron or cobalt or nickel along with manganese and molybdenum supported on binary metal oxides comprising of boron, magnesium, aluminum, silicon, calcium, barium, and combination thereof. The CNT morphology can be tailor-made with the plural combination of nature of metal and promoters in appropriate proportions. The process yields the CNT with bulk density in the range of 0.01 to 0.20 g/cc, diameter in the range of 5 to 30 nm and purity greater than 95 wt %.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: September 1, 2020
    Assignee: Indian Oil Corporation Limited
    Inventors: Narayanam Seshubabu, Palvannan Mohanasundaram, Bhanumurthy Samala, Naduhatty Selai Raman, Rashmi Bagai, Sankara Sri Venkata Ramakumar, Biswapriya Das
  • Patent number: 10751697
    Abstract: A process for producing activated carbon includes carbonizing an organic material to produce a charcoal, heating the charcoal in a chamber in the presence of oxygen at a temperature in the range of 400 to 500° C. for a duration of time sufficient to produce the activated carbon, and removing the charcoal from the heat once the activated carbon is formed.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: August 25, 2020
    Assignee: University of North Dakota
    Inventor: Feng Xiao
  • Patent number: 10703019
    Abstract: A resin-impregnated fiber bundle that can provide a molded article with a high surface impact strength is prepared by impregnating and integrating 100 parts by mass of a bundle of a fiber material (A) with 25 to 300 parts by mass of a thermoplastic resin (B). The fiber bundle has a flattened shape with a lateral cross-sectional shape having a major axis and a minor axis (length of the major axis>length of the minor axis). An average length (D1) of the major axis is 0.5 to 2.0 mm. An average flatness ratio (D1/D2), determined from the average length (D1) of the major axis and an average length (D2) of the minor axis, is 1.2 to 8.01. The fiber bundle has a length (L) of 11 to 50 mm, a ratio (L/D1) between L and D1 is 10 to 50, and a bulk density is 0.1 to 0.4 g/cm3.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: July 7, 2020
    Assignee: DAICEL POLYMER LTD.
    Inventors: Shigeyuki Kosaka, Satoru Shibata
  • Patent number: 10646846
    Abstract: Inter-allotropic transformations of carbon are provided using moderate conditions including alternating voltage pulses and modest temperature elevation. By controlling the pulse magnitude, small-diameter single-walled carbon nanotubes are transformed into larger-diameter single-walled carbon nanotubes, multi-walled carbon nanotubes of different morphologies, and multi-layered graphene nanoribbons.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: May 12, 2020
    Assignees: Northeastern University, Massachusetts Institute of Technology
    Inventors: Yung Joon Jung, Hyun Young Jung, Swastik Kar, Chi Won Ahn, Mildred Dresselhaus, Paulo Antonio Trindade Araujo
  • Patent number: 10573879
    Abstract: In an example of a method for enhancing the performance of a silicon-based negative electrode, the silicon-based negative electrode is pre-lithiated in an electrolyte including a lithium salt dissolved in a solvent mixture of dimethoxyethane (DME) and fluoroethylene carbonate (FEC). The DME and FEC are present in a volume to volume ratio ranging from 10 to 1 to 1 to 10. The pre-lithiation forms a stable solid electrolyte interface layer on an exposed surface of the negative electrode.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: February 25, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Li Yang, Qiangfeng Xiao, Mei Cai, Meng Jiang, Xingcheng Xiao
  • Patent number: 10563303
    Abstract: An article comprises a body having a coating. The coating comprises a Y-O-F coating or other yttrium-based oxy-fluoride coating generated either by performing a fluorination process on a yttrium-based oxide coating or an oxidation process on a yttrium-based fluorine coating.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: February 18, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Xiaowei Wu, David Fenwick, Guodong Zhan, Jennifer Y. Sun, Michael R. Rice
  • Patent number: 10553873
    Abstract: Provided is aluminum secondary battery comprising an anode, a cathode, a porous separator electronically separating the anode and the cathode, and an electrolyte in ionic contact with the anode and the cathode to support reversible deposition and dissolution of aluminum at the anode, wherein the anode contains aluminum metal or an aluminum metal alloy as an anode active material and the cathode comprises a layer of graphitic carbon particles or fibers, preferably selected from meso-phase carbon particles, meso carbon micro-beads (MCMB), coke particles or needles, soft carbon particles, hard carbon particles, amorphous graphite containing graphite micro-crystallites, multi-walled carbon nanotubes, carbon nano-fibers, carbon fibers, graphite nano-fibers, graphite fibers, or a combination thereof.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 4, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Yu-Sheng Su, Aruna Zhamu, Hui He, Baofei Pan, Bor Z. Jang
  • Patent number: 10479853
    Abstract: Provided is a surface-treated carbon nanotube having few surface fractures, not reducing the molecular weight of the resin to be mixed and having excellent extrudability. In the surface-treated carbon nanotube, the thermal reduction amount at 600° C. in a nitrogen atmosphere is 0.2 to 40%, the surface oxygen concentration measured by X-ray photoelectron spectroscopy (XPS) is 1.5 to 40 atm % and the surface sulfur concentration is less than 0.1 atm %.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: November 19, 2019
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Aya Takagiwa, Teruaki Sakuma, Yasukazu Shikano, Kazuya Noda
  • Patent number: 10468324
    Abstract: A microelectronic device includes a heat spreader layer on an electrode of a component and a metal interconnect on the heat spreader layer. The heat spreader layer is disposed above a top surface of a substrate of the semiconductor device. The heat spreader layer is 100 nanometers to 3 microns thick, has an in-plane thermal conductivity of at least 150 watts/meter-° K, and an electrical resistivity less than 100 micro-ohm-centimeters.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: November 5, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Archana Venugopal, Marie Denison, Luigi Colombo, Sameer Pendharkar
  • Patent number: 10431692
    Abstract: Embodiments of the present disclosure provide preparation methods for a semiconductor layer and a TFT, a TFT and an array substrate. The preparation method for a semiconductor layer includes forming a silicon dioxide film on a substrate; forming sidewalls at two ends of the semiconductor layer to be formed by patterning process; performing amination treatment on the sidewalls so that an aminosiloxane monolayer self-assembly is formed on the surface of the sidewalls; carboxylating a carbon nanotube solution and making the carboxylated carbon nanotube solution on the surface of the substrate with the sidewalls formed to form a carbon nanotube film; removing portions of the carbon nanotube film other than the portion between the sidewalls to form a semiconductor layer.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 1, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hu Meng
  • Patent number: 10336619
    Abstract: Graphene oxide is synthesized by chemical treatment of graphite using only H2SO4, KMnO4, H2O2 and/or H2O as reagents. Graphene oxide films obtained using the method disclosed herein were characterized using various analytical techniques. These analytical techniques confirmed the creation of single to few layer graphene oxide with relatively large lateral size distribution using the method disclosed herein.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: July 2, 2019
    Assignee: Sri Lanka Institute of Nanotechnology (PVT) Ltd.
    Inventors: Viraj C. Jayawardena, Dilushan Rukmal Jayasundara, Gehan Amaratunga, Vimukthi Jayaweera
  • Patent number: 10294108
    Abstract: A method of producing a carbon nanostructure is provided that enables production of a high-quality carbon nanostructure with a high yield. The method of producing a carbon nanostructure includes supplying a feedstock gas to a catalyst and growing a carbon nanostructure by chemical vapor deposition. A gas X that is derived from the feedstock gas and that comes into contact with the catalyst contains a hydrocarbon A having at least one cyclopentadiene skeleton and a hydrocarbon B having at least one acetylene skeleton. A total volume concentration [A] of the hydrocarbon A is at least 0.06%.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: May 21, 2019
    Assignee: ZEON CORPORATION
    Inventor: Akiyoshi Shibuya
  • Patent number: 10266411
    Abstract: A method of producing a carbon nanotube-containing composition is a method of producing a carbon nanotube-containing composition for synthesizing carbon nanotube aggregates by introducing a ferrocene derivative, a sulfur compound, a carbon source, and a carrier gas into a gas phase flowing in a heating furnace within a temperature range of higher than 1,200° C. to 1,800° C. The carbon source substantially consists of benzene or toluene. The carrier gas includes hydrogen at 10% by volume to 85% by volume. The carrier gas has a linear velocity of 500 cm/min to 2,200 cm/min.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: April 23, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Takayoshi Hirai, Kenshi Miyaura, Hidekazu Nishino, Shiro Honda
  • Patent number: 10233566
    Abstract: Systems and methods for synthesizing continuous single crystal graphene are provided. A catalytic substrate is drawn through a chemical vapor deposition chamber in a first lengthwise direction while flowing a hydrogen gas through the chemical vapor deposition chamber in the same lengthwise direction. A hydrocarbon precursor gas is supplied directly above a surface of the catalytic substrate. A high concentration gradient of the hydrocarbon precursor at the crystal growth front is generated to promote the growth of a continuous single crystal graphene film while suppressing the growth of seed domains ahead of the crystal growth front.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: March 19, 2019
    Assignee: UT-Battelle, LLC
    Inventors: Frederick Alyious List, III, Yijing Y. Stehle, Ivan V. Vlassiouk, Sergei N. Smirnov
  • Patent number: 10189713
    Abstract: Provided is a method for efficiently producing a carbon nanotube dispersion liquid in which less-damaged carbon nanotubes are highly dispersed. The method for producing a carbon nanotube dispersion liquid includes: (A) obtaining a carbon nanotube dispersion liquid by applying a shear force to a coarse dispersion liquid that includes carbon nanotubes having a specific surface area of 600 m2/g or more to whereby disperse the carbon nanotubes, wherein the step (A) includes at least one of applying a back pressure to the carbon nanotube dispersion liquid and cooling the carbon nanotube dispersion liquid.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: January 29, 2019
    Assignee: ZEON CORPORATION
    Inventors: Mitsugu Uejima, Masahiro Shigeta
  • Patent number: 10170752
    Abstract: A method for producing an amorphous carbon particle includes the steps of: obtaining a first crosslinked product by admixing mesophase particles with an amorphous carbon precursor and thereafter subjecting the mixture to a crosslinking treatment, or obtaining a second crosslinked product by crosslinking the amorphous carbon precursor and thereafter admixing the mesophase particles with the crosslinked precursor; and subjecting the first or second crosslinked product to an infusibilization treatment and thereafter firing the product to produce amorphous carbon particles including the mesophase particles within the particles.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: January 1, 2019
    Assignee: JFE CHEMICAL CORPORATION
    Inventors: Makiko Ijiri, Ryuta Haga, Tetsuo Shiode, Katsuhiro Nagayama
  • Patent number: 10151051
    Abstract: The invention is directed to carbon fibers having high tensile strength and modulus of elasticity. The invention also provides a method and apparatus for making the carbon fibers. The method comprises advancing a precursor fiber through an oxidation oven wherein the fiber is subjected to controlled stretching in an oxidizing atmosphere in which tension loads are distributed amongst a plurality of passes through the oxidation oven, which permits higher cumulative stretches to be achieved. The method also includes subjecting the fiber to controlled stretching in two or more of the passes that is sufficient to cause the fiber to undergo one or more transitions in each of the two or more passes. The invention is also directed to an oxidation oven having a plurality of cooperating drive rolls in series that can be driven independently of each other so that the amount of stretch applied to the oven in each of the plurality of passes can be independently controlled.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: December 11, 2018
    Assignee: Hexcel Corporation
    Inventor: Carlos A. León y León
  • Patent number: 10138120
    Abstract: Nanostructured assemblies are manufactured by condensing an evaporated wetting agent onto a nanostructure array formed from a plurality of generally aligned carbon nanotubes or other nanostructures. The condensed wetting agent draws the individual nanostructures together to form various geometries of nanostructured assemblies based on various parameters including process variables and the starting shape and dimensional features of the nanostructure array. Various simple and complex geometries can be achieved in this manner, including geometries that are curved, bent, or twisted. Adjacent nanostructure arrays of the same or different starting geometries can be shaped into compound or interrelating structures. Additional process steps such as plasma etching, coating and others can be used to control the shaping and structural attributes of the nanostructured assemblies. A method of making a molded replica of a shaped nanostructure array is also disclosed.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: November 27, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Anastasios John Hart, Sameh Tawfick, Michael DeVolder, Davor Copic
  • Patent number: 10138347
    Abstract: Provided is a method for efficiently producing a carbon nanotube (CNT) dispersion liquid of highly dispersed CNTs while also suppressing damage to the CNTs. The method for producing a carbon nanotube dispersion liquid includes a dispersing step that includes at least one cycle of dispersing treatment in which pressure is applied to a coarse dispersion liquid containing carbon nanotubes and a dispersion medium, the coarse dispersion liquid is fed under pressure, and shear force is applied to the coarse dispersion liquid such as to disperse the carbon nanotubes. A plurality of repetitions of the dispersing step are performed while altering the pressure that is applied to the coarse dispersion liquid. In at least one instance, the pressure applied to the coarse dispersion liquid is altered by at least 10 MPa between consecutive repetitions of the dispersing step.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: November 27, 2018
    Assignee: ZEON CORPORATION
    Inventors: Masahiro Shigeta, Mitsugu Uejima
  • Patent number: 10099460
    Abstract: A method for producing a preform for manufacture of a fiber-reinforced plastic molding. The method includes: fixing a resin-equipped film rolled out from a roll state including a release film and a fixing resin and containing a partially-cured thermosetting resin, to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, thereby obtaining a first dry fiber fabric; separately fixing the resin-equipped film to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, and detaching the release film, thereby obtaining one or more second dry fiber fabrics; and laminating the second dry fiber fabrics on a surface of the first dry fiber fabric with the fixing resin of the second dry fiber fabrics interposed therebetween.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: October 16, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Sohei Samejima, Hajime Takeya, Michihito Matsumoto, Hiroki Kobayashi, Kazuki Kubo, Yuhei Awano, Takahiro Mabuchi
  • Patent number: 10099950
    Abstract: The invention relates to bio-electrochemical systems for treating wastewater, and sour gas produced by anaerobic digestion of organic material. The invention further relates to novel anode/cathode pairing schemes, and electric and hydraulic architectures for use in bio-electrochemical systems.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: October 16, 2018
    Assignee: CAMBRIAN INNOVATION LLC
    Inventors: Matthew Silver, Justin Buck, Patrick Kiely, Juan J. Guzman
  • Patent number: 10023979
    Abstract: A bundle of carbon fibers has a value A obtained from a nonlinear approximation formula of a stress ?-strain ? curve in a tensile strength test of resin-impregnated strands and an orientation parameter ? (%) of crystallites in a wide-angle x-ray diffraction measurement which satisfy a predetermined relational expression, and has tensile strength with a predetermined value or more, and tensile modulus within a predetermined range and a product E×d/W of a ratio d/W of a single-fiber diameter d to a loop width W just before loop fracture evaluated by a single-fiber loop test and a tensile modulus E of the strands has a predetermined value or more, or apparent single-fiber stress has a predetermined value or more when the number of fiber breaks by a single-fiber fragmentation method for a single-fiber composite is 0.30 breaks/mm and when the number of the fiber breaks by the single-fiber fragmentation method for the single-fiber composite is 0.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: July 17, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Naohiro Matsumoto, Jun Watanabe, Haruki Okuda, Fumihiko Tanaka
  • Patent number: 9988412
    Abstract: The present invention relates to fractions of high purity lignin which are thermally stable, and to methods of producing said fractions from lignocellulosic material.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: June 5, 2018
    Assignee: VIRDIA, INC.
    Inventors: Robert Jansen, James Alan Lawson, Noa Lapidot, Bassem Hallac, Perry Rotem
  • Patent number: 9988313
    Abstract: We provide a method for the in situ development of graphene containing silicon carbide (SiC) matrix ceramic composites, and more particularly to the in situ graphene growth within the bulk ceramic through a single-step approach during SiC ceramics densification using an electric current activated/assisted sintering (ECAS) technique. This approach allows processing dense, robust, highly electrical conducting and well dispersed nanocomposites having a percolated graphene network, eliminating the handling of potentially hazardous nanostructures. Graphene/SiC components could be used in technological applications under strong demanding conditions where good electrical, thermal, mechanical and/or tribological properties are required, such as micro and nanoelectromechanical systems (MEMS and NEMS), sensors, actuators, heat exchangers, breaks, components for engines, armors, cutting tools, microturbines or microrotors.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: June 5, 2018
    Assignee: The Penn State Research Foundation
    Inventors: Pilar Miranzo, Carmen Ocal, Maria Isabel Osendi, Manuel Belmonte, Cristina Ramirez, Benito Roman-Manso, Humberto R. Gutierrez, Mauricio Terrones
  • Patent number: 9938643
    Abstract: The invention is directed to carbon fibers having high tensile strength and modulus of elasticity. The invention also provides a method and apparatus for making the carbon fibers. The method comprises advancing a precursor fiber through an oxidation oven wherein the fiber is subjected to controlled stretching in an oxidizing atmosphere in which tension loads are distributed amongst a plurality of passes through the oxidation oven, which permits higher cumulative stretches to be achieved. The method also includes subjecting the fiber to controlled stretching in two or more of the passes that is sufficient to cause the fiber to undergo one or more transitions in each of the two or more passes. The invention is also directed to an oxidation oven having a plurality of cooperating drive rolls in series that can be driven independently of each other so that the amount of stretch applied to the oven in each of the plurality of passes can be independently controlled.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: April 10, 2018
    Assignee: Hexel Corporation
    Inventor: Carlos A. León y León
  • Patent number: 9917308
    Abstract: The present invention provides a method for producing metal-supported carbon, which includes supporting metal microparticles on the surface of carbon black, by a liquid-phase reduction method, in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, as well as a method for producing crystals comprising fullerene molecules and fullerene nanowhisker/nanofiber nanotubes, which includes uniformly stirring and mixing a solution containing a first solvent having fullerene dissolved therein, and a second solvent in which fullerene is less soluble than in the first solvent, in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: March 13, 2018
    Assignee: M. TECHNIQUE CO., LTD.
    Inventor: Masakazu Enomura
  • Patent number: 9847181
    Abstract: The present invention provides: a film that comprises single-layer carbon nanotubes having shapes which enable the characteristics thereof to be sufficiently exhibited; and a process for producing the film. The film, which comprises single-layer carbon nanotubes, has portions where single-layer carbon nanotubes are densely present and portions where single-layer carbon nanotubes are sparsely present, the dense portions forming a pseudo-honeycomb structure in a surface of the film.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: December 19, 2017
    Assignee: THE UNIVERSITY OF TOKYO
    Inventors: Shigeo Maruyama, Shohei Chiashi, Kehang Cui
  • Patent number: 9765448
    Abstract: A flame resistant polymer is obtained by reacting polyacrylonitrile with amine and nitro compounds, the polyacrylonitrile being polymerized by aqueous suspension polymerization using a redox initiator and containing an S component at an amount of 3,000 ?g/g or less. A PAN-based polymer in which both yarn producing properties and flame resistance are improved can be realized.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: September 19, 2017
    Assignee: The University of Tokyo
    Inventors: Tetsunori Higuchi, Mami Sakaguchi
  • Patent number: 9745471
    Abstract: A prepreg 10 comprises: a reinforcing fiber layer 3 including reinforcing fibers 1 and a resin composition 2 with which the space between fibers of the reinforcing fibers 1 is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer 6a or 6b provided on at least one surface of the reinforcing fiber layer 3 and containing (A) a benzoxazine resin, (B) an epoxy resin, (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule, and (D) polyamide resin particles 4 having an average particle size of 5 to 50 ?m, wherein the polyamide resin particles 4 include a particle made of a polyamide 11.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: August 29, 2017
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukuda, Takayuki Matsumoto, Masaki Minami, Naoyuki Sekine, Masanori Nakajima
  • Patent number: 9711296
    Abstract: An energy storage device includes a first electrode and a second electrode comprising nanostructures. The nanostructures comprise defects that increase charge storage capabilities of the energy storage device. A method of fabricating an energy storage device includes producing a nanomaterial comprising nanostructures and generating defects in the nanomaterial using an electrophilic or nucleophilic additive for increasing charge storage capability of the nanomaterial.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: July 18, 2017
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Prabhakar R. Bandaru, Mark Hoefer
  • Patent number: 9688538
    Abstract: An improved graft polymerization method from general graphitic structures with organic based monomers through the mechanism of Reversible Addition-Fragmentation Chain Transfer (RAFT) polymerization was developed. Organic hybrid nanomaterials comprising graphitic structures are covalently bonded via chemically reactive groups on the outer walls of the structure. Methods for forming the covalently bonded structures to many organic based monomers and/or polymers may occur through RAFT polymerization utilizing dithioester as a chain transfer agent. The method may also comprise nanocomposite formation of such organic hybrid nanomaterials with common plastic(s) to form graphitic nanocomposite reinforced plastic articles.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 27, 2017
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Seamus Curran, Kang-Shyang Liao, Alexander Wang
  • Patent number: 9677195
    Abstract: The invention is directed to carbon fibers having high tensile strength and modulus of elasticity. The invention also provides a method and apparatus for making the carbon fibers. The method comprises advancing a precursor fiber through an oxidation oven wherein the fiber is subjected to controlled stretching in an oxidizing atmosphere in which tension loads are distributed amongst a plurality of passes through the oxidation oven, which permits higher cumulative stretches to be achieved. The method also includes subjecting the fiber to controlled stretching in two or more of the passes that is sufficient to cause the fiber to undergo one or more transitions in each of the two or more passes. The invention is also directed to an oxidation oven having a plurality of cooperating drive rolls in series that can be driven independently of each other so that the amount of stretch applied to the oven in each of the plurality of passes can be independently controlled.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: June 13, 2017
    Assignee: Hexcel Corporation
    Inventor: Carlos A. León y León
  • Patent number: 9597677
    Abstract: The invention relates to a method allowing functionalization of carbon nano-objects and in particular carbon nanotubes and graphene nanosheets, a composition comprising nano-objects functionalized by this method, suspended in an organic solvent, as well as to the uses of this composition. Suitable applications include elaboration of composite materials and, in particular, of nano-composite materials, materials intended for photovoltaics, detection devices of the detector/sensor or biodetector/biosensor type, photocatalysis systems, targeted vectorization systems for compounds of therapeutic or diagnostic interest or further contrast agents for medical imaging.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: March 21, 2017
    Assignee: COMMISSARIAT ÁL'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Stéphane Campidelli, Guillaume Clave
  • Patent number: 9561066
    Abstract: The present application discloses devices that ablate human tissue. The device comprises a catheter with a shaft through which an ablative agent can travel, a liquid reservoir and a heating component, which may comprise a length of coiled tubing contained within a heating element, wherein activation of said heating element causes said coiled tubing to increase from a first temperature to a second temperature and wherein the increase causes a conversion of liquid within the coiled tubing to vapor, a reusable cord connecting the outlet of the reservoir to the inlet of the heating component, and a single use cord connecting a pressure-resistant inlet port of a vapor based ablation device to the outlet of the heating component.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: February 7, 2017
    Inventors: Virender K. Sharma, William Parks
  • Patent number: 9540243
    Abstract: Systems and methods for the formation of nanostructures, including carbon-based nanostructures, are generally described. In certain embodiments, substrate configurations and associated methods are described.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: January 10, 2017
    Assignee: Massachusetts Institute of Technology
    Inventors: Stephen A. Steiner, III, Brian L. Wardle, Richard Li
  • Patent number: 9529129
    Abstract: The present invention in one aspect relates to a low-cost, nano-graphene based broadband optical limiter with limiting properties superior to current standards, carbon fullerenes (C60) solutions and carbon black suspensions. The broadband optical limiter includes a plurality of graphene nano-sheets, and a base material in which the plurality of graphene nano-sheets is distributed. The base material can be liquid or gel matrix.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: December 27, 2016
    Assignee: BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
    Inventors: Wei Zhao, Boshan Zhao
  • Patent number: 9478364
    Abstract: Carbon-based electrodes such as for incorporation into ultracapacitors or other high power density energy storage devices, include activated carbon, carbon black, binder and at least one molecular sieve material. The molecular sieve component can adsorb and trap water, which can facilitate the use of the device at higher voltage, such as greater than 3V. The molecular sieve material may be incorporated into the carbon-based electrodes or formed as a layer over a carbon-based electrode surface.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: October 25, 2016
    Assignee: Corning Incorporated
    Inventors: Kishor Purushottam Gadkaree, Atul Kumar, Xiaorong Liu
  • Patent number: 9412998
    Abstract: A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li+ intercalation medium. Highly reversible Li+ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. The broken graphitic edges at the CNF sidewall ensure good electrical connection with the Si shell during charge/discharge processes.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: August 9, 2016
    Inventors: Ronald A. Rojeski, Steven Klankowski, Jun Li
  • Patent number: 9394178
    Abstract: A method for transfer of a two-dimensional material includes forming a spreading layer of a two-dimensional material on a substrate, the spreading layer having a monolayer. A stressor layer is formed on the spreading layer, and the stressor layer is configured to apply stress to a closest monolayer of the spreading layer. The closest monolayer is exfoliated by mechanically splitting the spreading layer wherein the closest monolayer remains on the stressor layer.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: July 19, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen W. Bedell, Christos D. Dimitrakopoulos, Keith E. Fogel, James B. Hannon, Jeehwan Kim, Hongsik Park, Dirk Pfeiffer, Devendra K. Sadana
  • Patent number: 9365728
    Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: June 14, 2016
    Assignee: Battelle Memorial Institute
    Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran