Patents by Inventor Qingwen Li

Qingwen Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11970355
    Abstract: The present disclosure relates to a collection device and a preparation system, including a pre-adjustment mechanism which is disposed in a housing and configured to adjust at least one bundle of carbon nanotube aggregates, and includes a first pre-adjustment sub-mechanism and a second pre-adjustment sub-mechanism for adjusting carbon nanotube aggregations along a first direction and a second direction, respectively; a winding mechanism for winding and collecting the carbon nanotube aggregates passing through the pre-adjustment mechanism.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: April 30, 2024
    Assignee: SUZHOU JERNANO CARBON CO., LTD.
    Inventors: Da Li, Hehua Jin, Qingwen Li, Zhenzhong Yong, Maolin Liu, Dianli Hu
  • Patent number: 11639306
    Abstract: The present disclosure relates to a curved glass thermal forming device and method. The curved glass thermal forming device includes a furnace body having a feed port and a discharge port, wherein the furnace body includes a heating segment, a forming segment and a cooling segment, a rotary table capable of rotating and used for circularly conveying glass to the heating segment, the forming segment and the cooling segment in sequence is arranged in the furnace body, a plurality of female dies for carrying glass are arranged on the rotary table so as to cooperate with a male die in the forming segment to perform press fit forming on the glass.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: May 2, 2023
    Assignees: TUNGHSU TECHNOLOGY GROUP CO., LTD., TUNGHSU GROUP CO., LTD.
    Inventors: Qing Li, Qingwen Li, Xianyou Jin, Zhaoting Li
  • Patent number: 11225581
    Abstract: A carbon nanotube aligned film as well as a preparation method and application thereof are disclosed. The preparation method includes: providing a carbon nanotube dispersion solution comprising a selected carbon nanotube, a polymer as a carbon nanotube dispersing agent and binding to the selected carbon nanotube, an aromatic molecule binding to the selected carbon nanotube and allowing the surface of the selected carbon nanotube to have the same charges and an organic solvent being at least used for cooperating with the rest components of the dispersion solution to form uniform dispersion solution; and introducing a water phase layer to the upper surface of the dispersion solution to form a double-layer liquid phase system, partially or completely inserting a base into the double-layer liquid system, and then pulling out the base so as to form the carbon nanotube aligned film on the surface of the base.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: January 18, 2022
    Assignee: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO), CHINESE ACADEMY OF SCIENCES
    Inventors: Bing Gao, Song Qiu, Hehua Jin, Qingwen Li
  • Publication number: 20210309867
    Abstract: A carbon nanotube aligned film as well as a preparation method and application thereof are disclosed. The preparation method includes: providing a carbon nanotube dispersion solution comprising a selected carbon nanotube, a polymer as a carbon nanotube dispersing agent and binding to the selected carbon nanotube, an aromatic molecule binding to the selected carbon nanotube and allowing the surface of the selected carbon nanotube to have the same charges and an organic solvent being at least used for cooperating with the rest components of the dispersion solution to form uniform dispersion solution; and introducing a water phase layer to the upper surface of the dispersion solution to form a double-layer liquid phase system, partially or completely inserting a base into the double-layer liquid system, and then pulling out the base so as to form the carbon nanotube aligned film on the surface of the base.
    Type: Application
    Filed: October 16, 2018
    Publication date: October 7, 2021
    Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO), CHINESE ACADEMY OF SCIENCES
    Inventors: Bing GAO, Song QIU, Hehua JIN, Qingwen LI
  • Publication number: 20210163252
    Abstract: The present disclosure relates to a collection device and a preparation system, including a pre-adjustment mechanism which is disposed in a housing and configured to adjust at least one bundle of carbon nanotube aggregates, and includes a first pre-adjustment sub-mechanism and a second pre-adjustment sub-mechanism for adjusting carbon nanotube aggregations along a first direction and a second direction, respectively; a winding mechanism for winding and collecting the carbon nanotube aggregates passing through the pre-adjustment mechanism.
    Type: Application
    Filed: March 26, 2018
    Publication date: June 3, 2021
    Inventors: Da LI, Hehua JIN, Qingwen LI, Zhenzhong YONG, Maolin LIU, Dianli HU
  • Publication number: 20210025055
    Abstract: The disclosure relates to a carbon nanotube preparation system, comprising: a pre-growth tube for an early pre-reaction of raw materials before generation of carbon nanotubes; an atomizer for atomizing the carbon nanotube raw materials and then spraying the atomized raw materials into the pre-growth tube; the atomizer is provided at the front end of the pre-growth tube, and has a spray output tube that extends into the pre-growth tube; a growth tube for generating carbon nanotubes and continuous growth of the generated carbon nanotubes; the front end of the growth tube is hermetically connected to the rear end of the pre-growth tube; and an air curtain generator for forming an air curtain enclosing an atomizing air flow around the outlet of the spray output tube, and the air curtain extends parallel to the extension direction of the pre-growth tube; the air curtain generator is provided inside the pre-growth tube.
    Type: Application
    Filed: March 26, 2018
    Publication date: January 28, 2021
    Inventors: Zhenzhong YONG, Qingwen LI, Hehua JIN, Da LI, Zhi LI
  • Patent number: 10676361
    Abstract: The disclosure discloses a method and reagent for improving a yield of selective dispersion of semiconducting carbon nanotubes.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 9, 2020
    Assignee: Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano), Chinese Academy of Sciences
    Inventors: Qingwen Li, Dan Liu, Song Qiu, Jin Zhang, Hehua Jin, Hongbo Li
  • Publication number: 20200109077
    Abstract: The present disclosure relates to a curved glass thermal forming device and method. The curved glass thermal forming device includes a furnace body having a feed port and a discharge port, wherein the furnace body includes a heating segment, a forming segment and a cooling segment, a rotary table capable of rotating and used for circularly conveying glass to the heating segment, the forming segment and the cooling segment in sequence is arranged in the furnace body, a plurality of female dies for carrying glass are arranged on the rotary table so as to cooperate with a male die in the forming segment to perform press fit forming on the glass.
    Type: Application
    Filed: May 24, 2018
    Publication date: April 9, 2020
    Applicants: TUNGHSU TECHNOLOGY GROUP CO., LTD, TUNGHSU GROUP CO., LTD.
    Inventors: Qing LI, Qingwen LI, Xianyou JIN, Zhaoting LI
  • Publication number: 20190218100
    Abstract: The disclosure discloses a method and reagent for improving a yield of selective dispersion of semiconducting carbon nanotubes.
    Type: Application
    Filed: April 28, 2017
    Publication date: July 18, 2019
    Applicant: Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano), Chinese Academy of Sciences
    Inventors: Qingwen LI, Dan LIU, Song QIU, Jin ZHANG, Hehua JIN, Hongbo LI
  • Publication number: 20190039350
    Abstract: The invention discloses the application of carbon nanotube assemblies to the preparation of a nanocarbon impact-resistant material. The carbon nanotube assembly is a macrostructure provided with at least one continuous surface, a plurality of carbon nanotubes are densely distributed in the continuous surface, and at least partial segments of at least part of the multiple carbon nanotubes continuously extend in the continuous surface. The invention further discloses a preparation method of the nanocarbon impact-resistant material. The nanocarbon impact-resistant material has an excellent protection effect, has the advantages of being light, good in flexibility, wide in tolerable temperature range, capable of being bent freely, good in fitness, breathable, adaptable to heat-moisture balance of human bodies, good in wearing comfort and the like, and can be widely applied to bullet-proof materials, stab-proof materials and explosion-proof materials.
    Type: Application
    Filed: January 9, 2017
    Publication date: February 7, 2019
    Inventors: Dongmei Hu, Qingwen Li
  • Patent number: 9290387
    Abstract: A structure for preparing an substantially aligned array of carbon nanotubes include a substrate having a first side and a second side, a buffer layer on the first side of the substrate, a catalyst on the buffer layer, and a plurality of channels through the structure for allowing a gaseous carbon source to enter the substrate at the second side and flow through the structure to the catalyst. After preparing the array, a fiber of carbon nanotubes may be spun from the array. Prior to spinning, the array can be immersed in a polymer solution. After spinning, the polymer can be cured.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: March 22, 2016
    Assignee: Los Alamos National Security, LLC
    Inventors: Yuntian T. Zhu, Paul Arendt, Qingwen Li, Xiefie Zhang
  • Publication number: 20150040532
    Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.
    Type: Application
    Filed: April 29, 2014
    Publication date: February 12, 2015
    Inventors: Yuntian T. Zhu, Paul Arendt, Xiefel Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
  • Patent number: 8709372
    Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: April 29, 2014
    Assignee: Los Alamos National Security, LLC
    Inventors: Yuntian T. Zhu, Paul Arendt, Xiefei Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
  • Patent number: 8487028
    Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: July 16, 2013
    Assignee: Los Alamos National Security, LLC
    Inventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
  • Publication number: 20130089663
    Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.
    Type: Application
    Filed: August 20, 2012
    Publication date: April 11, 2013
    Applicant: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
  • Patent number: 8278380
    Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: October 2, 2012
    Assignee: Los Alamos National Security, LLC
    Inventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
  • Publication number: 20110034600
    Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.
    Type: Application
    Filed: December 23, 2009
    Publication date: February 10, 2011
    Applicant: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
  • Publication number: 20090208742
    Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.
    Type: Application
    Filed: October 2, 2008
    Publication date: August 20, 2009
    Inventors: Yuntian T. Zhu, Paul Arendt, Xiefei Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
  • Publication number: 20090136751
    Abstract: A structure for preparing an substantially aligned array of carbon nanotubes include a substrate having a first side and a second side, a buffer layer on the first side of the substrate, a catalyst on the buffer layer, and a plurality of channels through the structure for allowing a gaseous carbon source to enter the substrate at the second side and flow through the structure to the catalyst. After preparing the array, a fiber of carbon nanotubes may be spun from the array. Prior to spinning, the array can be immersed in a polymer solution. After spinning, the polymer can be cured.
    Type: Application
    Filed: August 28, 2007
    Publication date: May 28, 2009
    Inventors: Yuntian T. Zhu, Paul Arendt, Qingwen Li, Xiefie Zhang
  • Publication number: 20070116631
    Abstract: An array of long carbon nanotubes (i.e. an array where the average length of the nanotubes is greater than 0.5 millimeters) is prepared by exposing a supported catalyst at elevated temperature to a gas mixture of hydrocarbon, inert gas, and a relatively low percentage of hydrogen. Addition of water vapor to the gas mixture may result in an increase in the length of the nanotubes, an increase the rate of growth, and a decrease in contamination of the array by amorphous carbon. The temperature and growth time are also chosen to minimize the amount of amorphous carbon that forms on the array. Fibers spun from the array have a higher tensile strength compared to known CNT fibers.
    Type: Application
    Filed: May 1, 2006
    Publication date: May 24, 2007
    Inventors: Qingwen Li, Yuntian Zhu, Paul Arendt, Raymond DePaula, James Groves