Patents by Inventor Johan Liu
Johan Liu 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).
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Patent number: 11917646Abstract: A host operable to provide an over-the-top (OTT) service is disclosed. The host is configured to provide and initiate transmission of user data to a network node for transmission to a user equipment (UE). To transmit the user data, the network node determines a PDSCH-to-HARQ timing for an upcoming downlink transmission of the user data to the UE. The network node also determines that HARQ feedback for the upcoming transmission should be delayed by the UE until further notification from the network node; transmits, to the UE, a first DCI associated with the upcoming transmission, the first DCI including a first PDSCH-to-HARQ timing-indicator value for indicating to the UE that the HARQ feedback for the upcoming transmission should be delayed until further notification from the network node; and transmit the user data from the host to the UE in the upcoming transmission to provide the OTT service.Type: GrantFiled: March 24, 2023Date of Patent: February 27, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Reem Karaki, Johan Rune, Yuhang Liu, Sorour Falahati
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Patent number: 11608270Abstract: 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: GrantFiled: January 25, 2022Date of Patent: March 21, 2023Assignee: SHT SMART HIGH-TECH ABInventors: Johan Liu, Peng Su
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Publication number: 20220219990Abstract: 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: ApplicationFiled: January 25, 2022Publication date: July 14, 2022Applicant: SHT SMART HIGH-TECH ABInventors: Johan LIU, Peng SU
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Publication number: 20220072825Abstract: 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: ApplicationFiled: November 12, 2021Publication date: March 10, 2022Applicant: SHT Smart High-Tech ABInventors: Johan LIU, Nan WANG
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Patent number: 11247907Abstract: 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: GrantFiled: June 8, 2017Date of Patent: February 15, 2022Assignee: SHT SMART HIGH-TECH ABInventors: Johan Liu, Peng Su
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Patent number: 11235557Abstract: 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: GrantFiled: November 30, 2020Date of Patent: February 1, 2022Assignee: SHT Smart High-Tech ABInventors: Johan Liu, Nan Wang
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Publication number: 20210153338Abstract: 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: ApplicationFiled: April 3, 2018Publication date: May 20, 2021Applicant: SHT SMART HIGH-TECH ABInventors: Johan LIU, Nan WANG
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Publication number: 20210148648Abstract: 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: ApplicationFiled: November 30, 2020Publication date: May 20, 2021Applicant: SHT Smart High-Tech ABInventors: Johan LIU, Nan WANG
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Publication number: 20210078288Abstract: 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: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Applicant: SHT Smart High-Tech ABInventors: Johan LIU, Nan WANG
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Publication number: 20200198976Abstract: 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: ApplicationFiled: June 8, 2017Publication date: June 25, 2020Applicant: SHT SMART HIGH-TECH ABInventors: Johan LIU, Peng SU
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Patent number: 10172941Abstract: 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: GrantFiled: July 24, 2014Date of Patent: January 8, 2019Assignee: SHT SMART HIGH-TECH ABInventor: Johan Liu
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Patent number: 9941198Abstract: 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: GrantFiled: April 24, 2014Date of Patent: April 10, 2018Assignee: SHT SMART HIGH-TECH ABInventors: Johan Liu, Di Jiang
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Publication number: 20170267532Abstract: The present invention relates to a method of manufacturing coated carbon nanotubes, the method comprising the steps of: functionalizing the carbon nanotubes in a solvent comprising a silane polymer; coating the carbon nanotubes with a SiO2 layer; depositing metal catalyst particles on the SiO2 layer of the carbon nanotubes; and performing electroless plating to form an Ag coating on the SiO2 layer of the carbon nanotubes. The invention also relates Ag-coated CNTs, and to the use of Ag-coated CNTs as interconnects in a flexible electronic film.Type: ApplicationFiled: December 22, 2014Publication date: September 21, 2017Inventor: Johan LIU
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Patent number: 9766228Abstract: The invention relates to a biocompatible scaffold for three dimensional cultivation of cells, said scaffold comprise one or more fibers randomly oriented to form a scaffold with open spaces for cultured cells. The one or more fibers are also coated with a bio-active coating and have a diameter of 100-3000 nm.Type: GrantFiled: May 16, 2012Date of Patent: September 19, 2017Assignee: 3Dtro ABInventors: Till Benjamin Puschmann, Milos Pekny, Carl Zanden, Johan Liu
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Publication number: 20170202967Abstract: 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: ApplicationFiled: July 24, 2014Publication date: July 20, 2017Inventor: Johan LIU
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Publication number: 20170189958Abstract: There is provided an apparatus and method for manufacturing of an infiltrated fiber-based composite film. The apparatus comprises two tool blocks arranged opposite each other enabling a fiber-based film to be arranged between the tool blocks. At least one of the tool blocks comprises a recess so that the recess can form a sealed cavity enclosing a portion of the film when the tool blocks are in contact with each other. At least one of the tool blocks comprises a vacuum channel connecting cavity to a vacuum pump for drawing a vacuum in the cavity; a melt channel connecting the cavity to a source of molten material. The melt channel comprises a valve arrangement controlling delivery of the molten material to the cavity; pressure means to achieve an elevated pressure onto the molten material within the cavity such that a fiber film in the cavity is infiltrated by the molten material; and an ejection piston for ejecting an infiltrated fiber film from the cavity.Type: ApplicationFiled: May 22, 2014Publication date: July 6, 2017Inventors: Johan LIU, Carl ZANDÉN
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Publication number: 20170040250Abstract: 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: ApplicationFiled: April 24, 2014Publication date: February 9, 2017Inventors: Johan LIU, Di JIANG
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Publication number: 20140315235Abstract: The invention relates to a biocompatible scaffold for three dimensional cultivation of cells, said scaffold comprise one or more fibers randomly oriented to form a scaffold with open spaces for cultured cells. The one or more fibers are also coated with a bio-active coating and have a diameter of 100-3000 nm.Type: ApplicationFiled: May 16, 2012Publication date: October 23, 2014Applicant: 3Dtro ABInventors: Till Benjamin Puschmann, Milos Pekny, Carl Zanden, Johan Liu
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Publication number: 20070120323Abstract: A Smart game is a type of an educational game that provides an unlimited horizon of information and knowledge, which can be utilized to motivate and stimulate the intellectuality of the players. The smart game is perfectly fit to teach and educate children about the knowledge and information surrounding them. This unique game contains description and visual image on each card and requires at least one player (2-4 would be recommended in order to create challenge, competitiveness and fun). The information/knowledge in this “smart game” contain politic, history, math, social, geography, astronomy, and entertainment, which include music, arts, and others.Type: ApplicationFiled: November 28, 2005Publication date: May 31, 2007Inventor: Johan Liu