Patents Assigned to SHT Smart High Tech AB
  • Publication number: 20250144912
    Abstract: Method of manufacturing a vertically aligned laminated graphene based thermally conductive film. The method comprising: attaching first and second graphene film using a layer of nanoparticles and an adhesive; forming a layered film comprising a predetermined number of graphene film layers by repeating the steps of arranging a layer of nanoparticles, arranging an adhesive and attaching a graphene film; and laminating the layered film by applying pressure and heat to cure the adhesive, thereby forming a laminate film; cutting the laminate film at an angle in relation to a surface plane of the film to form the vertically aligned laminated graphene based thermally conductive film.
    Type: Application
    Filed: January 14, 2025
    Publication date: May 8, 2025
    Applicant: SHT Smart High-Tech AB
    Inventors: Johan LIU, Nan WANG
  • Patent number: 12226996
    Abstract: Method of manufacturing a vertically aligned laminated graphene based thermally conductive film. The method comprising: attaching first and second graphene film using a layer of nanoparticles and an adhesive; forming a layered film comprising a predetermined number of graphene film layers by repeating the steps of arranging a layer of nanoparticles, arranging an adhesive and attaching a graphene film; and laminating the layered film by applying pressure and heat to cure the adhesive, thereby forming a laminate film; cutting the laminate film at an angle in relation to a surface plane of the film to form the vertically aligned laminated graphene based thermally conductive film.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: February 18, 2025
    Assignee: SHT Smart High-Tech AB
    Inventors: Johan Liu, Nan Wang
  • Publication number: 20240407135
    Abstract: A graphene-based thermally conductive film comprising a plurality of strips of a graphene film arranged so that graphene sheets of the graphene film are aligned in a direction perpendicular to the plane of the thermally conductive film, wherein the thermally conductive film comprises: a plurality of first area portions comprising strips of graphene film having a first rotational alignment in the plane of the thermally conductive film; and a plurality of second area portions comprising strips of graphene film having a second rotational alignment in the plane of the thermally conductive film, different from the first alignment.
    Type: Application
    Filed: September 26, 2022
    Publication date: December 5, 2024
    Applicant: SHT Smart High-Tech AB
    Inventors: Johan LIU, Thien LAUBECK
  • Patent number: 12103294
    Abstract: Heat sink and method of manufacturing a graphene based heat sink, the method comprising: providing a first and second graphene film; arranging a layer of nanoparticles on a surface of the first and second graphene film to improve an adhesion strength between the graphene films; attaching the second graphene film to the first graphene film by means of an adhesive and the layer of nanoparticles; forming a laminated graphene film comprising a number of graphene film layers by repeating the steps, wherein the laminated graphene film is formed to have an anisotropic thermal conductivity; assembling a plurality of laminated graphene films by applying pressure and heat to cure the adhesive to form a graphene block; and removing selected portions of the graphene block to form a heat sink comprising fins extending from a base plate of the heat sink.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: October 1, 2024
    Assignee: SHT Smart High-Tech AB
    Inventors: Johan Liu, Nan Wang
  • Patent number: 11608270
    Abstract: According a first aspect of the invention, there is provided an arrangement for manufacturing a roll of graphene. The arrangement comprises a supply reel configured to hold a strip of graphene film; a winding reel configured to wind a strip of graphene film into a roll of graphene film; a motor controlling the winding reel; and a dispenser configured to dispense a fluid adhesive on a graphene film running from the supply reel to the winding reel. There is also provided a method form manufacturing a graphene film using sing the described arrangement, where the method comprises cutting the manufactures graphene roll into sheets of graphene film.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: March 21, 2023
    Assignee: SHT SMART HIGH-TECH AB
    Inventors: Johan Liu, Peng Su
  • Publication number: 20220219990
    Abstract: According a first aspect of the invention, there is provided an arrangement for manufacturing a roll of graphene. The arrangement comprises a supply reel configured to hold a strip of graphene film; a winding reel configured to wind a strip of graphene film into a roll of graphene film; a motor controlling the winding reel; and a dispenser configured to dispense a fluid adhesive on a graphene film running from the supply reel to the winding reel. There is also provided a method form manufacturing a graphene film using sing the described arrangement, where the method comprises cutting the manufactures graphene roll into sheets of graphene film.
    Type: Application
    Filed: January 25, 2022
    Publication date: July 14, 2022
    Applicant: SHT SMART HIGH-TECH AB
    Inventors: Johan LIU, Peng SU
  • Publication number: 20220072825
    Abstract: Heat sink and method of manufacturing a graphene based heat sink, the method comprising: providing a first and second graphene film; arranging a layer of nanoparticles on a surface of the first and second graphene film to improve an adhesion strength between the graphene films; attaching the second graphene film to the first graphene film by means of an adhesive and the layer of nanoparticles; forming a laminated graphene film comprising a number of graphene film layers by repeating the steps, wherein the laminated graphene film is formed to have an anisotropic thermal conductivity; assembling a plurality of laminated graphene films by applying pressure and heat to cure the adhesive to form a graphene block; and removing selected portions of the graphene block to form a heat sink comprising fins extending from a base plate of the heat sink.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 10, 2022
    Applicant: SHT Smart High-Tech AB
    Inventors: Johan LIU, Nan WANG
  • Patent number: 11247907
    Abstract: According a first aspect of the invention, there is provided an arrangement for manufacturing a roll of graphene. The arrangement comprises a supply reel configured to hold a strip of graphene film; a winding reel configured to wind a strip of graphene film into a roll of graphene film; a motor controlling the winding reel; and a dispenser configured to dispense a fluid adhesive on a graphene film running from the supply reel to the winding reel. There is also provided a method form manufacturing a graphene film using sing the described arrangement, where the method comprises cutting the manufactures graphene roll into sheets of graphene film.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: February 15, 2022
    Assignee: SHT SMART HIGH-TECH AB
    Inventors: Johan Liu, Peng Su
  • Patent number: 11235557
    Abstract: Heat sink and method of manufacturing a graphene based heat sink, the method comprising: providing a first and second graphene film; arranging a layer of nanoparticles on a surface of the first and second graphene film to improve an adhesion strength between the graphene films; attaching the second graphene film to the first graphene film by means of an adhesive and the layer of nanoparticles; forming a laminated graphene film comprising a number of graphene film layers by repeating the steps, wherein the laminated graphene film is formed to have an anisotropic thermal conductivity; assembling a plurality of laminated graphene films by applying pressure and heat to cure the adhesive to form a graphene block; and removing selected portions of the graphene block to form a heat sink comprising fins extending from a base plate of the heat sink.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: February 1, 2022
    Assignee: SHT Smart High-Tech AB
    Inventors: Johan Liu, Nan Wang
  • Publication number: 20210148648
    Abstract: Heat sink and method of manufacturing a graphene based heat sink, the method comprising: providing a first and second graphene film; arranging a layer of nanoparticles on a surface of the first and second graphene film to improve an adhesion strength between the graphene films; attaching the second graphene film to the first graphene film by means of an adhesive and the layer of nanoparticles; forming a laminated graphene film comprising a number of graphene film layers by repeating the steps, wherein the laminated graphene film is formed to have an anisotropic thermal conductivity; assembling a plurality of laminated graphene films by applying pressure and heat to cure the adhesive to form a graphene block; and removing selected portions of the graphene block to form a heat sink comprising fins extending from a base plate of the heat sink.
    Type: Application
    Filed: November 30, 2020
    Publication date: May 20, 2021
    Applicant: SHT Smart High-Tech AB
    Inventors: Johan LIU, Nan WANG
  • Publication number: 20210153338
    Abstract: The invention relates to a heat spreading structure comprising: a first substrate layer; a second substrate layer; and a thermally conductive graphite film sandwiched between the first and second substrate layers, wherein the graphite film comprises a plurality of graphene layers having a turbostratic alignment between adjacent graphene layers. The invention also relates to a method for manufacturing a graphite film for a heat spreading structure.
    Type: Application
    Filed: April 3, 2018
    Publication date: May 20, 2021
    Applicant: SHT SMART HIGH-TECH AB
    Inventors: Johan LIU, Nan WANG
  • Publication number: 20210078288
    Abstract: Method of manufacturing a vertically aligned laminated graphene based thermally conductive film. The method comprising: attaching first and second graphene film using a layer of nanoparticles and an adhesive; forming a layered film comprising a predetermined number of graphene film layers by repeating the steps of arranging a layer of nanoparticles, arranging an adhesive and attaching a graphene film; and laminating the layered film by applying pressure and heat to cure the adhesive, thereby forming a laminate film; cutting the laminate film at an angle in relation to a surface plane of the film to form the vertically aligned laminated graphene based thermally conductive film.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Applicant: SHT Smart High-Tech AB
    Inventors: Johan LIU, Nan WANG
  • Publication number: 20200198976
    Abstract: According a first aspect of the invention, there is provided an arrangement for manufacturing a roll of graphene. The arrangement comprises a supply reel configured to hold a strip of graphene film; a winding reel configured to wind a strip of graphene film into a roll of graphene film; a motor controlling the winding reel; and a dispenser configured to dispense a fluid adhesive on a graphene film running from the supply reel to the winding reel. There is also provided a method form manufacturing a graphene film using sing the described arrangement, where the method comprises cutting the manufactures graphene roll into sheets of graphene film.
    Type: Application
    Filed: June 8, 2017
    Publication date: June 25, 2020
    Applicant: SHT SMART HIGH-TECH AB
    Inventors: Johan LIU, Peng SU
  • Patent number: 10172941
    Abstract: A process for synthesis of silica coated graphene hybrid material comprising the steps of treating graphene oxide with ammonium ions to provide ammonium-activated graphene oxide; treating the ammonium-activated graphene oxide with a solution comprising silica precursors; and silane coupling agents that comprise functional groups, to provide self-assembly of silica nanoparticles on the surface of the ammonium-activated graphene oxide and covalent bonding between the nanoparticles and the surface to provide silica coated graphene oxide; and grafting of the functional groups on the surface of the silica coated graphene oxide to provide functionalized silica coated graphene oxide; and reducing the functionalized silica coated graphene oxide to provide functionalized silica coated graphene. Silica coated graphene hybrid material obtainable by this process.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: January 8, 2019
    Assignee: SHT SMART HIGH-TECH AB
    Inventor: Johan Liu
  • Patent number: 9941198
    Abstract: There is provided a method for manufacturing a flexible film comprising carbon nanotube interconnects, the method comprising: providing a first substrate; forming and patterning a catalyst layer on the substrate; forming vertically aligned electrically conducting carbon nanotube bundles from the catalyst; providing a second substrate opposite the first substrate and in contact with the carbon nanotube bundles such that a gap is formed between the first and second substrates; providing a flowing curable polymer in the gap between the first substrate and the second substrate such that the gap is filled by the polymer; curing the polymer to form a flexible solid; and removing the first substrate and the second substrate to provide a flexible polymer film comprising carbon nanotube interconnects connectable on respective sides of the film.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: April 10, 2018
    Assignee: SHT SMART HIGH-TECH AB
    Inventors: Johan Liu, Di Jiang
  • Publication number: 20160068965
    Abstract: A method for autocatalytic plating of nanoparticles on a carbon nanomaterial, the method including: providing a nanomaterial in a solution including an oxidizing agent, the solution being maintained within a first temperature range and stirring the solution for a first predetermined time period; heating the solution to reach a second temperature range, higher than the first temperature range, and stirring the solution for a second predetermined time period, shorter than the first time period, while maintaining the solution within the second temperature range; filtering and rinsing the nanomaterial; dispersing the nanomaterial in an aqueous solution including a sensitizing agent; immersing the nanomaterial in a mixture including seed particles adhering to the nanomaterial; collecting the nanomaterial; plating the nanomaterial by immersing in a plating solution including an aqueous metal source and a first aqueous reducing agent such that a metallic layer is grown on the nanomaterial from the seed particles.
    Type: Application
    Filed: April 17, 2014
    Publication date: March 10, 2016
    Applicant: SHT Smart High Tech AB
    Inventor: Johan Jianying LIU