Patents Examined by Richard M Rump
  • Patent number: 11549202
    Abstract: The present invention relates to a method for producing a carbon nanotube fiber aggregate and provides a carbon nanotube fiber aggregate having an improved level of alignment through ultrasonic wave application and low speed recovery.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: January 10, 2023
    Inventors: Eugene Oh, Juhan Kim, Ji Eun Kim, Won Jae Lee, Hyunjung Cho, Kun-Hong Lee
  • Patent number: 11542609
    Abstract: A system and process for producing doped carbon nanomaterials is disclosed. A carbonate electrolyte including a doping component is provided during the electrolysis between an anode and a cathode immersed in carbonate electrolyte contained in a cell. The carbonate electrolyte is heated to a molten state. An electrical current is applied to the anode, and cathode, to the molten carbonate electrolyte disposed between the anode and cathode. A morphology element maximizes carbon nanotubes, versus graphene versus carbon nano-onion versus hollow carbon nano-sphere nanomaterial product. The resulting carbon nanomaterial growth is collected from the cathode of the cell.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: January 3, 2023
    Assignee: C2CNT LLC
    Inventor: Stuart Licht
  • Patent number: 11542175
    Abstract: There are provided processes for preparing a metal hydroxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum, the process comprising: reacting a metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum with lithium hydroxide, sodium hydroxide and/or potassium hydroxide and optionally a chelating agent in order to obtain a solid comprising the metal hydroxide and a liquid comprising lithium sulfate, sodium sulfate and/or potassium sulfate; separating the liquid and the solid from one another to obtain the metal hydroxide; submitting the liquid comprising lithium sulfate, sodium sulfate and/or potassium sulfate to an electromembrane process for converting the lithium sulfate, sodium sulfate and/or potassium sulfate into lithium hydroxide, sodium hydroxide and/or potassium hydroxide respectively; reusing the s
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: January 3, 2023
    Inventors: Guy Bourassa, Jean-François Magnan, Nicolas Laroche, Thomas Bibienne, Mathieu Charbonneau, Mickaël Dollé
  • Patent number: 11542165
    Abstract: A method of making a carbon nanotube bundle is provided. A plurality of carbon nanotubes is provided. A plurality of sulfur nanoparticles is disposed on the plurality of carbon nanotubes to form at least two visible carbon nanotubes. The at least two visible carbon nanotubes are stacked to form a carbon nanotube bundle preparation body. The plurality of sulfur nanoparticles in the carbon nanotube bundle preparation body is removed to obtain the carbon nanotube bundle.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: January 3, 2023
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Xin-He Yang, Peng Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 11542411
    Abstract: The invention utilizes swelling and fusion effects of graphene oxide in a solvent to implement cross-linked bonding of a graphene material itself and materials such as polymers, metal, paper, glass, carbon materials, and ceramics. The present invention not only overcomes the shortcoming in traditional adhesives of residual formaldehyde, but also has short drying time, high bonding strength and high corrosion resistance. The present invention is widely applied in the fields of aviation, aerospace, automobiles, machinery, construction, chemical, light industry, electronics, electrical appliances, and daily life, etc.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: January 3, 2023
    Inventors: Chao Gao, Zheng Li, Chunxiao Zhang, Dan Chang, Chen Chen, Weiwei Gao, Yan Guo, Yi Han
  • Patent number: 11535519
    Abstract: A method for the manufacture of pristine graphite from Kish graphite including three different steps A, B and C; the pristine obtained with among others a high amount of carbon atoms, i.e. a pristine graphene having a high purity; and the use of this pristine graphene.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: December 27, 2022
    Assignee: ArcelorMittal
    Inventors: Thi Tan Vu, Oscar Perez Vidal, Roberto Suarez Sanchez
  • Patent number: 11518678
    Abstract: A slurry of the graphene oxides comprises the graphene oxides and a solvent. The graphene oxides include a strong graphene oxide and a weak graphene oxide. The slurry can be used to make composite films of graphene oxides and graphene heat-conducting films. The slurry includes two graphene oxides with different degrees of oxidation, which can increase a carbon content in the graphene oxide per unit mass, so that the finally obtained graphene heat-conducting film has more carbon.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: December 6, 2022
    Inventors: Bucun Zhou, Renjie Zhou, Jing Lu, Dong Su, Zhaocheng Wang, Feng Li
  • Patent number: 11518677
    Abstract: Provided is a heterofullerene where n number (where n is a positive even number) of carbon atoms constituting a fullerene are substituted by n number of boron atoms or n number of nitrogen atoms.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: December 6, 2022
    Inventors: Nobuyuki Matsuzawa, Masaru Sasago, Jun'ichi Naka
  • Patent number: 11511995
    Abstract: Provided herein are methods and devices for production of carbon nanotubes (CNTs) which have high structural uniformity and low levels of impurities. The device includes, for example, a module for depositing catalyst on a substrate, a module for forming CNTs, a module for separating CNTs from the substrate, a module for collecting the CNTs and a module for continuously and sequentially advancing the substrate through the above modules. The method includes, for example, the steps of depositing catalyst on a moving substrate, forming carbon nanotubes on the substrate, separating carbon nanotubes from the substrate and collecting the carbon nanotubes from the surface, where the substrate moves sequentially through the depositing, forming, separating and collecting steps.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: November 29, 2022
    Inventor: Cattien V. Nguyen
  • Patent number: 11511998
    Abstract: The present invention addresses the problem of providing a method for producing a fibrous carbon nanohorn aggregate with higher efficiency. According to one embodiment of the present invention, a method for producing a carbon nanohorn aggregate comprising a fibrous carbon nanohorn aggregate, is provided, which includes a step (a) of fixing the end of a rod-shaped carbon target to a fixing jig, and a step (b) of irradiating the rod-shaped carbon target with a laser light, and moving the irradiation position of the laser light in the longitudinal direction of the rod-shaped carbon target without rotating the rod-shaped carbon target.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 29, 2022
    Inventor: Ryota Yuge
  • Patent number: 11499933
    Abstract: A method of manufacturing a graphene-tin oxide nanocomposite comprises dispersing graphene and tin oxide in an organic solvent to prepare a dispersion solution, drying the dispersion solution to obtain a powdery mixture, and irradiating the mixture with microwaves to obtain a graphene-tin oxide nanocomposite. Irradiation of graphene and tin oxide with microwaves results in the simplification of the manufacturing process of graphene-tin oxide nanocomposites and a decrease in manufacturing time and cost, and produce graphene-tin oxide nanocomposites at low temperatures. Further, the graphene-tin oxide nanocomposite with improved sensitivity to NO2 gas may be produced.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: November 15, 2022
    Inventors: Sung Pil Ryu, Ki Seok Chang, Wook Sung Kim, Han Saem Kang, Hyoun Woo Kim, Yong Jung Kwon, Myong Sik Choi, Sung Yong Kang, Jae Hoon Bang
  • Patent number: 11479466
    Abstract: Embodiments described are directed to methods for the functionalization of asphaltene materials and to compositions made from functionalized asphaltenes. Disclosed is a method for synthesizing graphene derivatives, such as 2D single crystalline carbon allotropes of graphene and functional materials, such as sulfonic acid and its derivatives. Also disclosed is a method for the transformation of asphaltene into a source of graphene derivatives and functional materials, such as, 0D, 1D, 2D and combinations of 0D and 1D by utilizing chemical substitution reaction mechanism, such as, electrophilic aromatic substitution, nucleophilic aromatic substitution and Sandmeyer mechanism. Also disclosed are novel graphene materials comprising: acetylenic linkage and hydrogenated graphene. These novel materials, which may be produced by these methods, include, e.g.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: October 25, 2022
    Inventor: Olanrewaju W. Tanimola
  • Patent number: 11471871
    Abstract: Provided is a graphene production method using Joule heating, including: a catalytic metal placement step in which a catalytic metal is disposed on a pair of electrodes disposed inside a chamber; a gas supply step in which a carbon-containing reaction gas and a carrier gas for transporting the reaction gas are supplied into the chamber; a heating step in which the catalytic metal is rapidly heated to a temperature required for synthesis of graphene; a temperature maintenance step in which the temperature of the catalytic metal is maintained to form the graphene on the catalytic metal; and a cooling step in which the catalytic metal is cooled to prevent local occurrence of hotspots on the graphene formed on the catalytic metal, wherein the heating step, the temperature maintenance step, and the cooling step constitute one cycle of temperature control and the cycle is repeated for a predetermined process time.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: October 18, 2022
    Inventors: Hyun June Jung, Hak Joo Lee, Jae Hyun Kim, Bong Kyun Jang, Kwang Seop Kim, Se Jeong Won
  • Patent number: 11459241
    Abstract: A method for preparing artificial graphite includes (A) preparing heavy oil, and forming coke from the heavy oil through continuous coking reaction such that the coke has a plurality of mesophase domains, wherein a size of the mesophase domains ranges between 1 and 30 ?m by polarizing microscope analysis; and (B) processing the coke formed by step (A) sequentially by pre-burning carbonization treatment, grinding classification, high-temperature carbonization treatment and graphitization treatment to form polycrystalline artificial graphite from the coke. The method for preparing artificial graphite of the present invention and the polycrystalline artificial graphite prepared thereby are applicable to batteries.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: October 4, 2022
    Inventors: Yan-Shi Chen, Gao-Shee Leu
  • Patent number: 11453596
    Abstract: A radical anion based functionalization of two-dimensional (2D) layered materials is proposed. The covalent functionalization of the basal plane of 2D materials with charge neutral radicals is typically unstable to reduction, leading to detachment of the functional groups from the basal plane upon reduction. This instability hinders the use of functionalized 2D materials as rechargeable electroactive species, unless the functional groups are bound to the edges of the 2D material. However, to achieve high capacity without the creation of many edges and defects, a stable functionalization of the basal plane in the reduced state is required. This goal can be achieved by radical anion functionalization, whereby the reduced/discharged state of the basal-plane-functionalized 2D material is produced. The product of the radical anion functionalization can be used as the discharged state of a cathode active material, solid electrolyte or part of a polymer composite.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: September 27, 2022
    Assignee: Boron Nitride Power LLC
    Inventor: Karoly Nemeth
  • Patent number: 11453595
    Abstract: The invention relates to a method for producing a pre-treatment coating composition for a metal substrate, the method comprising the steps of: i. mining graphite ore from a graphite ore body; ii. subjecting the graphite ore to an electrolytic treatment to obtain an expanded graphitic material; iii. subjecting the expanded graphitic material to an exfoliation treatment to obtain single-layer graphene and few-layer graphene, and iv. functionalising the graphene with a coupling agent for coupling graphene to the metal substrate.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: September 27, 2022
    Assignee: Talga Advanced Materials GmbH
    Inventors: Sivasambu Bohm, Karanveer Singh Aneja
  • Patent number: 11435313
    Abstract: An example method includes providing coal and extracting the graphene from the coal. The graphene may be extracted using any suitable technique, such as the Hummers method, a modified Hummers method, or exfoliation of graphite. The graphene may include impurities or other electrical properties that depend at least partially on the composition of the coal. The method may further include forming a life science device from the graphene. The life science device may include, for example, a biosensor or a drug delivery system.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: September 6, 2022
    Inventors: Charles Agee Atkins, Garrett W. Lindemann
  • Patent number: 11427473
    Abstract: Methods of preparing dispersions of carbon-based materials are disclosed herein. In some embodiments, a method comprises exposing the carbon-based material to an atmosphere comprising between about 0.5% v/v and about 5.0% v/v of oxygen for a selected time at an oxidation temperature to obtain a thermally oxidized material; and dispersing the thermally oxidized material in a liquid medium.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: August 30, 2022
    Inventors: Simone Musso, Matteo Pavese, Luca Lavagna
  • Patent number: 11430614
    Abstract: The present invention relates to a coconut shell-derived modified activated carbon having a BET specific surface area of 1400 to 2000 m2/g, a value of hydrogen content/carbon content of 0.0015 to 0.0055, and intra-skeletal oxygen of 0.9 mass % or less.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: August 30, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Shuichi Ishida, Keita Takahashi, Hiroaki Kitatomi, Akinori Yamabata, Yasuyuki Hirota
  • Patent number: 11390966
    Abstract: Provided is a manufacturing method of a graphene-based liquid crystal fiber including: polymerizing a first aromatic monomer on a graphene-based compound to prepare a graphene composite in which a first aromatic polymer is surface-polymerized on the graphene-based compound; wet-spinning the graphene composite to manufacture a hydrogel fiber; and polymerizing a second aromatic monomer on the hydrogel fiber to fill pores of the hydrogel fiber with a second aromatic polymer.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: July 19, 2022
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sang Ouk Kim, In Ho Kim