Including Free Carbon Or Carbide Or Therewith (not As Steel) Patents (Class 428/367)
  • Patent number: 10777848
    Abstract: Provided is a lithium ion secondary battery including: a positive electrode; a negative electrode; a separator; and an electrolyte solution, the electrolyte solution including an additive A containing sulfur, and at least one of a cyclic carbonate additive B which is different from the additive A and which has an unsaturated bond and a cyclic carbonate additive C which is different from the additives A and B and which has a halogen. A molar ratio of the additive A relative to a total molar amount of the additive A, the additive B, and the additive C is smaller than a total of a molar ratio of the additive B and a molar ratio of the additive C relative to the total molar amount.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: September 15, 2020
    Assignee: Envision AESC Japan Ltd.
    Inventors: Takashi Nakagawa, Sayaka Yonehara
  • Patent number: 10720298
    Abstract: A vacuum electron tube comprises at least one electron-emitting cathode and at least one anode arranged in a vacuum chamber, the cathode having a planar structure comprising a substrate comprising a conductive material, a plurality of nanotube or nanowire elements electrically insulated from the substrate, the longitudinal axis of the nanotube or nanowire elements substantially parallel to the plane of the substrate, and at least one first connector electrically linked to at least one nanotube or nanowire element so as to be able to apply a first electrical potential to the nanowire or nanotube element.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: July 21, 2020
    Assignee: THALES
    Inventors: Jean-Paul Mazellier, Lucie Sabaut
  • Patent number: 10703633
    Abstract: [Problem]To provide a nanocarbon composite material that is superior in providing electrical conductivity. [Solution]In a nanocarbon composite material 100 in an example embodiment of the present invention, a fibrous carbon nanohorn aggregate 11 of a plurality of single-walled carbon nanohorn aggregates connected fibrously is dispersively formed in a matrix 13.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 7, 2020
    Assignee: NEC CORPORATION
    Inventor: Ryota Yuge
  • Patent number: 10683590
    Abstract: Embodiments of the invention relate generally to graphene fibers and, more particularly, to graphene fibers comprising intercalated large-sized graphene oxide (LGGO)/graphene sheets and small-sized graphene oxide (SMGO)/graphene sheets having high thermal and electrical conductivities and high mechanical strength. In one embodiment, the invention provides a graphene fiber comprising: a plurality of intercalated graphene sheets including: a plurality of large-sized graphene sheets; and a plurality of small-sized graphene sheets, wherein at least one of the plurality of small-sized graphene sheets is disposed between at least two of the plurality of large-sized graphene sheets.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: June 16, 2020
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Jie Lian, Guoqing Xin
  • Patent number: 10633256
    Abstract: Aerogels, aerogel composites and methods of making the same are discussed. One example method can include the act of creating a Boehmite colloid and adding a hydrolyzed silicon precursor to form a sol. A reinforcement can be infused with the sol, gelled to form a gel, then dried to form an aerogel composite. Such a method can also include the acts of performing one or more solvent exchanges and subjecting the gel composite to subcritical drying. Additionally, such a method can include the act of heat treating the aerogel composite. The aerogel composite can be used in high temperature, flexible seals capable of withstanding temperatures, pressures, and compression levels associated with aerodynamic heating generated during flight and in aerospace applications. The aerogel composite also can be used in thermal protection systems designed for fire protection for structures or in personnel fire protective equipment.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: April 28, 2020
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Haiquan Guo, Frances I. Hurwitz
  • Patent number: 10633770
    Abstract: Disclosed are methods for preparing a lignin/poly(vinyl alcohol) (PVA) fiber and for preparing a lignin/polyacrylonitrile (PAN) fiber. The methods can comprise adding a dope of lignin and PVA or a dope of lignin and PAN to a coagulation bath containing a solvent comprising one or more components, wherein the one or more components are present in the solvent in concentrations based on the hydrogen bonding character (fH) of the solvent, the polar character (fP) of the solvent, and the dispersive character (fD) of the solvent; and gel-spinning a lignin/PVA fiber or a lignin/PAN fiber from the coagulation bath.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: April 28, 2020
    Assignee: North Carolina State University
    Inventors: Ericka Ford, Charles Blackwell, Chunhong Lu
  • Patent number: 10632718
    Abstract: A filament network for a composite structure may include a number of fiber layers, wherein each fiber layer includes a fiber bundle and a filament layer at least partially covering the fiber bundle, the filament layer including discontinuous filaments including at least one of different length filaments including first length filaments and second length filaments, wherein the first length filaments include a first length and the second length filaments include a second length, and wherein the first length is different than the second length and different type filaments including first type filaments and second type filaments, wherein the first type filaments include a first material composition, wherein the second type filaments include a second material composition, and wherein the first material composition is different that the second material composition, and a resin binding the number of fiber layers together.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: April 28, 2020
    Assignee: The Boeing Company
    Inventors: Sam Meure, Christopher A. Howe, Mark S. Wilenski
  • Patent number: 10626235
    Abstract: Disclosed is a flexible composite prepreg material. The prepreg material includes a fiber bundle of fiber tows having a predetermined cross-sectional shape, wherein exterior surface fibers of said fiber bundle have a thin, irregular sheath of matrix resin on and around said exterior surface fibers of said fiber bundle, wherein substantial number interior fibers filaments remain uncoated by the matrix resin, with discreet areas of through the thickness resin bridges made of the matrix resin.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: April 21, 2020
    Inventor: Robert M Davies
  • Patent number: 10611941
    Abstract: There is provided a method of manufacturing a heat radiation sheet, the method including: forming a base film on a substrate; growing a plurality of carbon nanotubes on the base film; and vaporizing at least a part of the base film by heating the base film to coat the carbon nanotube with a coating film containing a material of the vaporized base film.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: April 7, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Shinichi Hirose, Yoshihiro Mizuno
  • Patent number: 10614967
    Abstract: A mixture of amorphous PAHs and at least one of a carrier ion storage metal, a Sn compound, a carrier ion storage alloy, a metal compound, Si, Sb, and SiO2 is used as the negative electrode active material. The theoretical capacity of amorphous PAHs greatly exceeds that of a graphite-based carbon material. Thus, the use of amorphous PAHs enables the negative electrode active material to have a higher capacity than in the case of using the graphite-based carbon material. Further, addition of at least one of the carrier ion storage metal, the Sn compound, the carrier ion storage alloy, the metal compound, Si, Sb, and SiO2 to the amorphous PAHs enables the negative electrode active material to have a higher capacity than the case of only using the amorphous PAHs.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: April 7, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yumiko Saito, Rie Yokoi, Mayumi Mikami
  • Patent number: 10593937
    Abstract: The present invention relates to a negative electrode including an active material layer which includes carbon-based particles having an oxygen content of 700 mg/kg to 1,700 mg/kg, and a secondary battery including the same.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: March 17, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Kwang Ho Jeong, Ye Cheol Rho, Jung Woo Yoo, Je Young Kim
  • Patent number: 10517879
    Abstract: The present invention includes an apparatus and method for aiding mood, emotion, or physiological state comprising: a substrate that is capable of capturing or absorbing one or more organic compounds from a subject having a first physiologic or emotional state at a first time; and an element that is capable of controlling the capture of the one or more organic compounds at a first time, or the release of the one or more organic compounds from the substrate at a second time, wherein exposure to an effective amount of the organic compounds changes the mood, emotion, or physiological state of the subject.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 31, 2019
    Assignee: Performance Labs PTE. LTD.
    Inventor: Daniel Gubler
  • Patent number: 10446838
    Abstract: Cycle characteristics of a nonaqueous secondary battery are to be improved. An active material including: a first active material that contains a nano silicon produced by heating a layered polysilane represented by a composition formula (SiH)n and having a structure in which multiple six-membered rings formed from silicon atoms are connected; and a second active material that contains a graphite, is used in a negative electrode. With this, expansion and contraction due to stress during charging and discharging can be mitigated, and thereby cycle characteristics improve.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: October 15, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takeshi Kondo, Yusuke Sugiyama, Takashi Mohri, Hiroki Oshima, Tomohiro Niimi, Mutsumi Takahashi, Nobuhiro Goda, Takahiro Sugioka, Yuta Kawamoto
  • Patent number: 10436745
    Abstract: A system for measuring pH includes a substrate and a sensor medium on the substrate. The sensor medium includes at least one oxidized carbon nanostructure and optionally at least one composition immobilized on the at least one oxidized carbon nanostructure. The at least one composition has at least one property that depends on pH. The system further includes at least one measurement system to measure a property of the sensor medium.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: October 8, 2019
    Assignee: University of Pittsburgh— Of the Commonwealth System of Higher Education
    Inventor: Alexander Star
  • Patent number: 10344404
    Abstract: The present disclosure relates to a preparation method for lowering a production cost of a high performance carbon fiber using a nanocarbon composite carbon fiber precursor fiber crosslinked by electron beam.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: July 9, 2019
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong-Mu Jo, Sung-Ho Lee, Han-Ik Joh, Se-Joon Park, Hyeon-uk Yeo, Bon-Cheol Ku
  • Patent number: 10343131
    Abstract: Aerogels, aerogel composites and methods of making the same are discussed. One example method can include the act of creating a Boehmite colloid and adding a hydrolyzed silicon precursor to form a sol. A reinforcement can be infused with the sol, gelled to form a gel, then dried to form an aerogel composite. Such a method can also include the acts of performing one or more solvent exchanges and subjecting the gel composite to supercritical drying. Additionally, such a method can include the act of heat treating the aerogel composite. The aerogel composite can be used in high temperature, flexible seals capable of withstanding temperatures, pressures, and compression levels associated with aerodynamic heating generated during flight and in aerospace applications. The aeorogel composite also can be used in thermal protection systems designed for fire protection for structures or in personnel fire protective equipment.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: July 9, 2019
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Frances I. Hurwitz, Haiquan Guo
  • Patent number: 10333139
    Abstract: Provided is a negative electrode active material including complex particles formed of: nano silicon aggregated particles produced by heating a layered polysilane represented by a composition formula of (SiH)n and having a structure in which multiple six-membered rings formed from silicon atoms are connected; and a composited carbon layer formed from an amorphous carbon and at least covering one portion of the aggregated particles. A mean particle diameter D50 of the aggregated particles is within a range of 0.2 ?m to 30 ?m, and a mean particle diameter D50 of the complex particles is within a range of 0.5 ?m to 40 ?m.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: June 25, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takeshi Kondo, Tomohiro Niimi, Yusuke Sugiyama, Masataka Nakanishi, Nobuhiro Goda
  • Patent number: 10293956
    Abstract: A method for placing electrical conductors interior to a composite structure prior to curing. A laminate stack is formed by assembling one or more composite layers, wherein the composite layers are pre-impregnated with a resin. One or more electrical conductors are placed on at least one of the composite layers prior to curing the laminate stack. One or more electrical insulators is optionally placed in proximity to one or more of the electrical conductors in at least one of the composite layers prior to curing the laminate stack. The laminate stack, including the composite layers, the electrical conductors, and the electrical insulators, is then cured to create the composite structure.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: May 21, 2019
    Assignee: The Boeing Company
    Inventors: Carl Roy McIver, Dejan Nikic, Arthur C. Day
  • Patent number: 10233569
    Abstract: A carbon fiber bundle, wherein an average single-fiber fineness is from 1.0 to 2.4 dtex and a roundness is from 0.7 to 0.9 in a shape of a cross-section perpendicular to a fiber axis of a single fiber; the roundness being determined with equation (1): roundness=4?S/L2, where S is a cross-sectional area of the single fiber and L is a circumferential length of the single fiber, and S and L are obtained by observing, under an SEM, the cross-section of the single fiber perpendicular to the fiber axis of the single fiber and analyzing the obtained image.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: March 19, 2019
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yuusuke Shinmen, Norifumi Hirota, Takeshi Nii
  • Patent number: 10230100
    Abstract: A negative-electrode active material is used for a negative electrode, the negative-electrode active material including: agglomerated particles including nanometer-size silicon produced by heat treating a lamellar polysilane having a structure in which multiple six-membered rings constituted of a silicon atom are disposed one after another, and expressed by a compositional formula, (SiH)n; and a carbon layer including amorphous carbon, and covering at least some of the agglomerated particles to be composited therewith. An electric storage apparatus including the same is not only able to reduce the irreversible capacity, but also able to inhibit the generation of “SEI.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: March 12, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Sugiyama, Masataka Nakanishi, Nobuhiro Goda, Tomohiro Niimi, Masakazu Murase, Takeshi Kondo, Shigenori Koishi, Hiroshi Hirate, Yoshihiro Nakagaki, Mutsumi Takahashi
  • Patent number: 10124402
    Abstract: A method for manufacturing carbon fiber reinforced aluminum composites is provided. Particularly, the method uses a stir casting process during a melting and casting process and reduces a contact angle of carbon against aluminum by inputting carbon fibers while supplying a current to liquid aluminum to induce the carbon fibers to be spontaneously and uniformly distributed in the liquid aluminum and inhibits a formation of an aluminum carbide (Al4C3) phase on an interface between the aluminum and the carbon fiber, thereby manufacturing carbon fiber reinforced aluminum composites having excellent electrical, thermal and mechanical characteristics.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 13, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Jin Kook Yoon, Kyung Tae Hong, Gyeung Ho Kim, Young Jun Choi, Geun Hun Oh
  • Patent number: 10128510
    Abstract: Provided are nanocomposites including an iron-based core and a nitrogen-doped graphitic carbon shell, and methods of making and using the same. Included in the nanocomposites is an Fe3C-based interlayer between the core and the shell. The nanocomposites can show a catalytic activity toward reducing oxygen comparable to commercial Pt/C catalysts.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: November 13, 2018
    Assignee: UWM Research Foundation, Inc.
    Inventors: Junhong Chen, Zhenhai Wen
  • Patent number: 10093810
    Abstract: An article includes a substrate and a coating provided on a surface of the substrate. The coating includes at least one metal silicide layer consisting essentially of MoSi2 or WSi2 or (Mo, W)Si2 or a platinum group metal silicide and at least one layer consisting essentially of Si3N4.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 9, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Julin Wan, Milivoj Konstantin Brun, Peter Joel Meschter, Reza Sarrafi-Nour, Don Mark Lipkin
  • Patent number: 10087557
    Abstract: Provided is a method for producing carbon nanofibers having excellent conductivity, crystallinity and dispersibility. A method for producing carbon nanofibers, which uses an activated species mainly composed of cobalt as a catalyst, while using carbon monoxide as a carbon source. The catalyst is obtained by having a carrier, which is composed of an oxide having a specific surface area of 0.01-5 m2/g and containing magnesium, support 3-90% by mass of the activated species. By controlling the reaction temperature, the carbon monoxide partial pressure and the gas flow rate of the carbon monoxide, CNF having more excellent conductivity, crystallinity and dispersibility can be produced, thereby obtaining carbon nanofibers having excellent conductivity, crystallinity and dispersibility.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 2, 2018
    Assignee: DENKA COMPANY LIMITED
    Inventors: Hitoshi Kaneko, Toru Arai, Yoko Horikoshi, Ayumu Tsukamoto
  • Patent number: 10061462
    Abstract: A method and apparatus are provided for a touch sensor made from a combination of conductive and non-conductive fibers. The fibers are woven into a fabric wherein non-conductive fibers keep horizontal conductive fibers from contacting vertical conducting fibers unless a touch is applied. The conductive fibers are grouped into horizontal and vertical strips and the fibers in a strip are connected together throughout the fabric. The ends of the strips are connected to control electronics that drive signals to the sensor fabric and measure signals from the sensor fabric to determine touch locations and touch contact areas.
    Type: Grant
    Filed: January 18, 2015
    Date of Patent: August 28, 2018
    Inventor: William James McDermid
  • Patent number: 10047015
    Abstract: A method and apparatus for forming a plurality of fibers from (e.g., CVD) precursors, including a reactor adapted to grow a plurality of individual fibers; and a plurality of independently controllable lasers, each laser of the plurality of lasers growing a respective fiber. A high performance fiber (HPF) structure, including a plurality of fibers arranged in the structure; a matrix disposed between the fibers; wherein a multilayer coating is provided along the surfaces of at least some of the fibers with an inner layer region having a sheet-like strength; and an outer layer region, having a particle-like strength, such that any cracks propagating toward the outer layer from the matrix propagate along the outer layer and back into the matrix, thereby preventing the cracks from approaching the fibers.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: August 14, 2018
    Assignee: FREE FORM FIBERS, LLC
    Inventors: Joseph Pegna, John L. Schneiter, Kirk L. Williams, Ramkiran Goduguchinta
  • Patent number: 10040687
    Abstract: A method for making a carbon nanotube sponge requires a carbon nanotube source being obtained and an organic solvent being added. The organic solvent is ultrasonically agitated to form a flocculent structure. The flocculent structure is washed by water and a carbon nanotube sponge preform obtained by freeze-drying the flocculent structure in a vacuum. Finally, the carbon nanotube sponge itself is obtained by depositing a carbon layer on the carbon nanotube sponge preform. A carbon nanotube sponge obtained by above method is also presented.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: August 7, 2018
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Shu Luo, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 10020491
    Abstract: Silicon based anode active materials are described for use in lithium ion batteries. The silicon based materials are generally composites of nanoscale elemental silicon with stabilizing components that can comprise, for example, silicon oxide-carbon matrix material, inert metal coatings or combinations thereof. High surface area morphology can further contribute to the material stability when cycled in a lithium based battery. In general, the material synthesis involves a significant solution based processing step that can be designed to yield desired material properties as well as providing convenient and scalable processing.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: July 10, 2018
    Assignee: Zenlabs Energy, Inc.
    Inventors: Yongbong Han, Charan Masarapu, Haixia Deng, Yogesh Kumar Anguchamy, Subramanian Venkatachalam, Herman A. Lopez
  • Patent number: 9981880
    Abstract: A method of making a fiber tow coating is provided. The method includes providing a fiber tow selected from the group consisting of carbon and silicon; and applying an oxide-based fiber interface coating onto the fiber tow using directed vapor deposition or other like deposition method.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: May 29, 2018
    Assignee: ROLLS-ROYCE CORPORATION
    Inventors: Adam L. Chamberlain, Andrew J. Lazur, Kang N. Lee
  • Patent number: 9979007
    Abstract: The present invention relates to a negative electrode material for a lithium secondary battery, a method for producing same, and a lithium secondary battery comprising same as a negative electrode. The present invention provides a negative electrode material for a lithium secondary battery, the material comprising a complex in which a chemical vapor deposition (CVD) carbon coating film is formed on an amorphous carbon material comprising a silicon material that has been surface treated by a silane coupling agent.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: May 22, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jumyeung Lee, Kyueun Shim
  • Patent number: 9966594
    Abstract: A negative active material, a method of preparing the same, and a lithium battery including the negative active material are disclosed. The negative active material includes a silicon-based nanocore and a first amorphous carbonaceous coating layer that is formed of carbonized organic material and that is uniformly and continuously formed on a surface of the silicon-based nanocore, whereby irreversible capacity losses due to volumetric expansion/contraction caused when a lithium battery is charged and discharged are compensated and cycle lifetime characteristics are enhanced.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: May 8, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Beom-Kwon Kim, Jae-Myung Kim, So-Ra Lee, Chang-Su Shin, Ui-Song Do
  • Patent number: 9950962
    Abstract: A CBN sintered body contains CBN, a binder phase and inevitable impurities. An amount of CBN by volume is between 50%-80%. A total amount of binder phase and inevitable impurities by volume is between 20%-50%. The binder phase contains an Al compound and a Ti compound. The Al compound contains Al and one or more of N, O and B. The Ti compound contains Ti and one or more of C, N and B. When an X-ray diffraction intensity at a (100) plane of the AlN is I1 and an X-ray diffraction intensity at a (104) plane of the Al2O3 is I2, I1/I2 is between 6 and 40. When a total area of the cubic boron nitride and the Al compound is S1, and an area of a region at which the CBN and the Al compound are continuously contacted is S2, S2/S1 is between 0.98 and 1.00.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: April 24, 2018
    Assignee: TUNGALOY CORPORATION
    Inventor: Kota Kobayashi
  • Patent number: 9803066
    Abstract: Provided are: chopped carbon fiber bundles which have high fluidity without decreasing the dispersibility of carbon fibers and the physical properties of a molded product; and a method for producing chopped carbon fiber bundles with high productivity. Chopped carbon fiber bundles, each of which contain a carbon fiber bundle having a total fineness of from 25,000 dtex to 45,000 dtex (inclusive) and a sizing agent in an amount of from 1% by mass to 5% by mass (inclusive) relative to the total mass of the chopped carbon fiber bundle. The length (L) of each chopped carbon fiber bundle along the fiber direction of the carbon fiber bundle is from 1 mm to 50 mm (inclusive); the ratio of the longest diameter (Dmax) to the shortest diameter (Dmin) of a cross section perpendicular to the fiber direction of each chopped carbon fiber bundle, namely Dmax/Dmin is from 6.0 to 18.0 (inclusive); and the orientation parameter of the single fibers present in the surface of each chopped carbon fiber bundle is 4.0 or less.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: October 31, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tadashi Ohtani, Takayuki Kiriyama, Yukio Nishimoto
  • Patent number: 9765194
    Abstract: A prepreg includes; sizing agent-coated carbon fibers coated with a sizing agent; and a thermosetting resin composition impregnated into the sizing agent-coated carbon fibers. The sizing agent includes an aliphatic epoxy compound (A) and an aromatic compound (B) at least containing an aromatic epoxy compound (B1). The thermosetting resin composition includes a thermosetting resin (D) and a latent hardener (E), and optionally includes an additive (F) other than the thermosetting resin (D) and the latent hardener (E). The (a)/(b) ratio is within a predetermined range where (a) is the height of a component at a binding energy assigned to CHx, C—C, and C?C and (b) is the height of a component at a binding energy assigned to C—O in a C1s core spectrum of the surfaces of the sizing agent-coated carbon fibers analyzed by X-ray photoelectron spectroscopy.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: September 19, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Nobuyuki Arai, Tomoko Ichikawa, Hiroshi Taiko, Makoto Endo, Masanobu Kobayashi, Jun Misumi
  • Patent number: 9711787
    Abstract: Provided are an anode active material including carbon-based particles, silicon nanowires grown on the carbon-based particles, and a carbon coating layer on surfaces of the carbon-based particles and the silicon nanowires, and a method of preparing the anode active material. Since the anode active material of the present invention is used in a lithium secondary battery, physical bonding force between the carbon-based particles and the silicon nanowires may not only be increased but conductivity may also be improved. Thus, lifetime characteristics of the battery may be improved.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 18, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Jung Woo Yoo, Won Jong Kwon, Eui Yong Hwang, Kil Sun Lee, Je Young Kim, Yong Ju Lee
  • Patent number: 9688854
    Abstract: There is provided a material for molding including: carbon fiber bundles which are easily impregnated including carbon fibers and at least one impregnation aid in an amount of 3 to 15 parts by mass based on 100 parts by mass of the carbon fibers, the at least one impregnation aid satisfying specific requirements; and a polycarbonate is adhered thereto in an amount of 50 to 2000 parts by mass.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 27, 2017
    Assignee: Teijin Limited
    Inventors: Hodaka Yokomizo, Takeshi Matsuda, Takashi Ito, Ikko Furukawa
  • Patent number: 9683312
    Abstract: There is provided a fiber and method of making a fiber. The fiber has an inner-volume portion having a first outer diameter, a plurality of nanostructures, and one or more first polymers. The nanostructures act as an orientation template for orientation of the one or more first polymers in a direction parallel to a longitudinal axis of the fiber. The fiber has an outer-volume portion having a second outer diameter and one or more second polymers. The outer-volume portion is in contact with and completely encompasses the inner-volume portion. The inner-volume portion has at least one of a tensile modulus and a strength that are higher than at least one of a tensile modulus and a strength of the outer-volume portion.
    Type: Grant
    Filed: December 10, 2011
    Date of Patent: June 20, 2017
    Assignee: The Boeing Company
    Inventor: Thomas Karl Tsotsis
  • Patent number: 9598287
    Abstract: The method of synthesizing carbon nanorods (CNRs) and carbon nanowires (CNWs) involves carbonization of a resorcinol-formaldehyde cross-linked precursor gel. The first stage is the synthesis of resorcinol-formaldehyde cross-linked precursor gel. The second stage is carbonization of the gel by heating the gel in a furnace under the flow of nitrogen gas at 500° C. for three hours. The third stage involves activating the carbon by heating the carbon gel in a furnace under the flow of carbon dioxide gas for one hour at 700° C. to form the CNRs and CNWs.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: March 21, 2017
    Assignee: Qatar University
    Inventors: Ahmed Awadallah-F, Shaheen A. Al-Muhtaseb
  • Patent number: 9593041
    Abstract: A colorless composite material according to an embodiment includes glass fibers, and inorganic-organic hybrid resin having inorganic bonds and organic bonds, wherein the inorganic bonds are M-O-M bonds and M denotes a metallic element, wherein the metallic element is one of Ti, Zr and Al.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: March 14, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Deokhai Park, Eunseck Kang, Kyungho Jung, Namseok Kang
  • Patent number: 9593238
    Abstract: A prepreg includes; agent-coated carbon fibers coated with a sizing agent; and a thermosetting resin composition impregnated into the sizing agent-coated carbon fibers. The sizing agent includes an aliphatic epoxy compound (A) and an aromatic epoxy compound (B1). The sizing agent-coated carbon fibers are in a shape of woven fabric or braid. The thermosetting resin composition includes a thermosetting resin (D), a thermoplastic resin (F), and a latent hardener (G). The sizing agent-coated carbon fibers have an (a)/(b) ratio in a certain range where (a) is the height of a component at a binding energy assigned to CHx, C—C, and C?C and (b) is the height of a component at a binding energy assigned to C—O in a C1s core spectrum of the surfaces of the sizing agent-coated carbon fibers analyzed by X-ray photoelectron spectroscopy.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: March 14, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Nobuyuki Arai, Tomoko Ichikawa, Hiroshi Taiko, Makoto Endo, Masanobu Kobayashi, Jun Misumi
  • Patent number: 9525170
    Abstract: A negative active material and a lithium battery including the negative active material. The negative active material includes a non-carbonaceous nanoparticle capable of doping or undoping lithium; and a crystalline carbonaceous nano-sheet, wherein at least one of the non-carbonaceous nanoparticle and the crystalline carbonaceous nano-sheet includes a first amorphous carbonaceous coating layer on its surface, and thus an electrical conductivity thereof is improved. In addition, a lithium battery including the negative active material has an improved efficiency and lifetime.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: December 20, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ui-Song Do, Chang-Su Shin, So-Ra Lee, Beom-Kwon Kim, Jae-Myung Kim
  • Patent number: 9520594
    Abstract: Inexpensive product consisting of porous carbon, with a pore structure which is suitable for retaining electrode parts which can be used in particular for a use as an electrode material for a lithium-sulphur secondary battery, and a method comprising the following method steps: (a) providing a template consisting of inorganic material which contains spherical nanoparticles and pores, (b) infiltrating the pores of the template with a precursor for carbon of a first variety, (c) carbonizing so as to form an inner layer on the nanoparticles with a first microporosity, (d) infiltrating the remaining pores of the template with a precursor substance for carbon of a second variety, (e) carbonizing the precursor substance, wherein an outer layer with a second microporosity which is lower than the first microporosity is produced on the inner layer, and (f) removing the template so as to form the carbon product with layer composite structure, comprising an inner layer consisting carbon with a first, relatively high mic
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: December 13, 2016
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventors: Christian Neumann, Jörg Becker
  • Patent number: 9409337
    Abstract: In a method of making a carbon fiber, polyacrylonitrile is dissolved into a first solvent, thereby generating a first solution. A plurality of cellulose nano-structures is dispersed in a second solvent, thereby generating a first suspension. The first suspension is mixed with the first solution, thereby generating a first mixture. The first mixture is spun so as to draw fibers from the first mixture. The fibers are stabilized and then the fibers are carbonized. A fiber includes an elongated carbonized polyacrylonitrile matrix. A plurality of carbonized cellulose nano-structures is in the carbonized polyacrylonitrile matrix.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: August 9, 2016
    Assignee: Georgia Tech Research Corporation
    Inventors: Satish Kumar, Huibin Chang
  • Patent number: 9403121
    Abstract: A composite membrane for separations includes a fabric with a non-woven array of intermingled carbon nanotubes, and a dopant incorporated with the fabric to form a non-porous, permeable composite. The composite membrane may be used to separate a target gas from a liquid by mounting the composite membrane in a housing chamber, and conditioning a permeate side of the chamber to establish a driving force for the target gas across the non-porous, permeable composite membrane.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: August 2, 2016
    Assignee: IDEX Health & Science, LLC
    Inventors: Carl Sims, Quan Liu
  • Patent number: 9359479
    Abstract: The present disclosure generally relates to methods of using boron-containing additives for crosslinking polysilazane green fibers, which are precursors to silicon carbide fibers. These methods provide a controllable process for crosslinking silicon carbide fibers while providing a simple way for the introduction of boron as a sintering aid into the polymer structure.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: June 7, 2016
    Assignee: General Electric Company
    Inventors: Slawomir Rubinsztajn, Matthew Hal Littlejohn, Ryan Christopher Mills, Peter Kennedy Davis
  • Patent number: 9305677
    Abstract: This disclosure provides systems, methods, and apparatus related to boron nitride converted carbon fiber. In one aspect, a method may include the operations of providing boron oxide and carbon fiber, heating the boron oxide to melt the boron oxide and heating the carbon fiber, mixing a nitrogen-containing gas with boron oxide vapor from molten boron oxide, and converting at least a portion of the carbon fiber to boron nitride.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 5, 2016
    Assignee: The Regents of the University of California
    Inventors: Michael Rousseas, William Mickelson, Alexander K. Zettl
  • Patent number: 9273380
    Abstract: An aluminum-carbon composition including aluminum and carbon, wherein the aluminum and the carbon form a single phase material, characterized in that the carbon does not phase separate from the aluminum when the single phase material is heated to a melting temperature.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: March 1, 2016
    Assignee: THIRD MILLENNIUM MATERIALS, LLC
    Inventors: Jason V. Shugart, Roger C. Scherer, Roger Lee Penn
  • Patent number: 9246229
    Abstract: An antenna arrangement comprising at least a first and a second elongated structure, e.g., a coaxial cable, for guiding an electromagnetic wave is provided. Each of said structures comprises a plurality of radiation elements. The structures are positioned alongside each other in their longitudinal direction of extension forming a bundle. The elongated structures are arranged within the bundle such that the radial positions of said structures are alternated in the longitudinal direction of extension.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: January 26, 2016
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Henrik Asplund, Anders Derneryd, Jonas Medbo
  • Patent number: 9241434
    Abstract: Provided are a method for manufacturing a carbon nanotube-metal oxide composite, and a carbon nanotube-metal oxide composite manufactured thereby, the method comprising: dispersing carbon nanotubes in a reductive solvent to prepare a dispersion liquid; adding a co-reducing agent and a metal precursor to the dispersion liquid to prepare a mixture liquid; and performing heat treatment on the mixture liquid to coat the metal precursor on the carbon nanotubes in a metal oxide form, so that there can be provided a carbon nanotube-metal oxide composite where metal oxide particles of several nm to several tens of nm are uniformly dispersed in carbon nanotubes or combined with surfaces of the carbon nanotubes in a coating type.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: January 19, 2016
    Assignee: BIONEER CORPORATION
    Inventors: Han Oh Park, Jae Ha Kim, Kuk Jin Yun
  • Patent number: 9240596
    Abstract: The invention relates to a composite material comprising carbon fibers and complex oxide particles, wherein the carbon fibers and the complex oxide particles have a carbon coating on at least part of their surface, said carbon coating being a non powdery coating The material is prepared by a method comprising mixing a complex oxide or precursors thereof, an organic carbon precursor and carbon fibers, and subjecting the mixture to a heat treatment in an inert or reducing atmosphere for the decomposition of the precursors The material is useful as the cathode material in a battery.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: January 19, 2016
    Assignees: HYDRO-QUEBEC, SHOWA DENKO K.K.
    Inventors: Karim Zaghib, Chiaki Sotowa, Abdelbast Guerfi, Masataka Takeuchi, Patrick Charest