Patents by Inventor Yong-Chao Zhai
Yong-Chao Zhai 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: 9339807Abstract: A device for making a carbon nanotube film includes a substrate having a surface, and two substantially parallel slits defined on the surface of the substrate. The two substantially parallel slits extend into the substrate from the surface of the substrate. A growing surface is defined by the two substantially parallel slits and located between the two substantially parallel slits.Type: GrantFiled: November 28, 2012Date of Patent: May 17, 2016Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Chen Feng, Kai-Li Jiang, Zhuo Chen, Yong-Chao Zhai, Shou-Shan Fan
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Patent number: 9048006Abstract: A carbon nanotube film includes a plurality of carbon nanotubes. The plurality of carbon nanotubes is arranged approximately along a same first direction. The plurality of carbon nanotubes are joined end to end by van der Waals attractive force therebetween. The carbon nanotube film has a uniform width. The carbon nanotube film has substantially the same density of the carbon nanotubes along a second direction perpendicular to the first direction. The change in density across the width is within 10 percent. The present application also relates to a carbon nanotube film precursor and a method for making the carbon nanotube film.Type: GrantFiled: December 30, 2009Date of Patent: June 2, 2015Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Chen Feng, Kai-Li Jiang, Zhuo Chen, Yong-Chao Zhai, Shou-Shan Fan
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Patent number: 8828256Abstract: A method for making a carbon nanotube film includes the steps of providing an array of carbon nanotubes, treating the array of carbon nanotubes by plasma, and pulling out a carbon nanotube film from the array of carbon nanotubes treated by the plasma.Type: GrantFiled: January 8, 2009Date of Patent: September 9, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Chen Feng, Kai Liu, Yong-Chao Zhai, Kai-Li Jiang, Shou-Shan Fan
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Publication number: 20130089694Abstract: A device for making a carbon nanotube film includes a substrate having a surface, and two substantially parallel slits defined on the surface of the substrate. The two substantially parallel slits extend into the substrate from the surface of the substrate. A growing surface is defined by the two substantially parallel slits and located between the two substantially parallel slits.Type: ApplicationFiled: November 28, 2012Publication date: April 11, 2013Inventors: CHEN FENG, KAI-LI JIANG, ZHUO CHEN, YONG-CHAO ZHAI, SHOU-SHAN FAN
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Patent number: 8343451Abstract: A device for making a carbon nanotube film includes a substrate and a catalyst layer on the substrate. The catalyst layer has two substantially parallel sides. The present disclosure also provides a method for making a carbon nanotube film. The catalyst layer is annealed at a high temperature in air. The annealed catalyst layer is heated up to a predetermined reaction temperature in a furnace with a protective gas therein. A carbonaceous gas is supplied into the furnace to grow a carbon nanotube array having two substantially parallel side faces. A carbon nanotube film is drawn from the carbon nanotube array. A drawing direction is substantially parallel to the two substantially parallel side faces of the carbon nanotube array.Type: GrantFiled: September 24, 2009Date of Patent: January 1, 2013Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Chen Feng, Kai-Li Jiang, Zhuo Chen, Yong-Chao Zhai, Shou-Shan Fan
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Patent number: 8247036Abstract: A method for making a coaxial cable, the method comprises the steps of: providing a carbon nanotube structure; and forming at least one conductive coating on a plurality of carbon nanotubes of the carbon nanotube structure; a carbon nanotube wire-like structure from the carbon nanotubes with at least one conductive coating; at least one layer of insulating material on the carbon nanotube wire-like structure; at least one layer of shielding material on the at least one layer of insulating material; and one layer of sheathing material on the at least one layer of shielding material.Type: GrantFiled: January 22, 2009Date of Patent: August 21, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kai-Li Jiang, Liang Liu, Kai Liu, Qing-Yu Zhao, Yong-Chao Zhai, Shou-Shan Fan
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Patent number: 8158199Abstract: A method for making an individually coated and twisted carbon nanotube wire-like structure, the method comprising the steps of: providing a carbon nanotube structure having a plurality of carbon nanotubes; forming at least one conductive coating on the plurality of carbon nanotubes in the carbon nanotube structure; and twisting the carbon nanotube structure.Type: GrantFiled: January 22, 2009Date of Patent: April 17, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kai-Li Jiang, Liang Liu, Kai Liu, Qing-Yu Zhao, Yong-Chao Zhai, Shou-Shan Fan
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Publication number: 20110039075Abstract: A carbon nanotube film includes a plurality of carbon nanotubes. The plurality of carbon nanotubes is arranged approximately along a same first direction. The plurality of carbon nanotubes are joined end to end by van der Waals attractive force therebetween. The carbon nanotube film has a uniform width. The carbon nanotube film has substantially the same density of the carbon nanotubes along a second direction perpendicular to the first direction. The change in density across the width is within 10 percent. The present application also relates to a carbon nanotube film precursor and a method for making the carbon nanotube film.Type: ApplicationFiled: December 30, 2009Publication date: February 17, 2011Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHEN FENG, KAI-LI JIANG, ZHUO CHEN, YONG-CHAO ZHAI, SHOU-SHAN FAN
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Publication number: 20100301518Abstract: A device for making a carbon nanotube film includes a substrate and a catalyst layer on the substrate. The catalyst layer has two substantially parallel sides. The present disclosure also provides a method for making a carbon nanotube film. The catalyst layer is annealed at a high temperature in air. The annealed catalyst layer is heated up to a predetermined reaction temperature in a furnace with a protective gas therein. A carbonaceous gas is supplied into the furnace to grow a carbon nanotube array having two substantially parallel side faces. A carbon nanotube film is drawn from the carbon nanotube array. A drawing direction is substantially parallel to the two substantially parallel side faces of the carbon nanotube array.Type: ApplicationFiled: September 24, 2009Publication date: December 2, 2010Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Chen Feng, Kai-Li Jiang, Zhuo Chen, Yong-Chao Zhai, Shou-Shan Fan
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Patent number: 7750240Abstract: A coaxial cable includes a core, an insulating layer, a shielding layer, a sheathing layer. The core includes an amount of carbon nanotubes having at least one conductive coating disposed about the carbon nanotubes. The carbon nanotubes are orderly arranged. The insulating layer is about the core. The shielding layer is about the insulating layer. The sheathing layer is about the shielding layer.Type: GrantFiled: January 22, 2009Date of Patent: July 6, 2010Assignees: Beijing FUNATE Innovation Technology Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Kai-Li Jiang, Liang Liu, Kai Liu, Qing-Yu Zhao, Yong-Chao Zhai, Shou-Shan Fan
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Publication number: 20090301993Abstract: A method for making a carbon nanotube film includes the steps of providing an array of carbon nanotubes, treating the array of carbon nanotubes by plasma, and pulling out a carbon nanotube film from the array of carbon nanotubes treated by the plasma.Type: ApplicationFiled: January 8, 2009Publication date: December 10, 2009Applicants: Tsinghua University, HON HAI Precision Industry CO.,LTD.Inventors: Chen Feng, Kai Liu, Yong-Chao Zhai, Kai-Li Jiang, Shou-Shan Fan
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Publication number: 20090196985Abstract: A method for making an individually coated and twisted carbon nanotube wire-like structure, the method comprising the steps of: providing a carbon nanotube structure having a plurality of carbon nanotubes; forming at least one conductive coating on the plurality of carbon nanotubes in the carbon nanotube structure; and twisting the carbon nanotube structure.Type: ApplicationFiled: January 22, 2009Publication date: August 6, 2009Applicants: Tsinghua University, HON HAI Precision Industry Co., LTD.Inventors: Kai-Li Jiang, Liang Liu, Kai Liu, Qing-Yu Zhao, Yong-Chao Zhai, Shou-Shan Fan
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Publication number: 20090197082Abstract: A individually coated carbon nanotube wire-like structure includes an amount of carbon nanotubes and a conductive coating on an outside surface of the carbon nanotubes. The carbon nanotubes are joined end-to-end by van der Waals attractive force therebetween.Type: ApplicationFiled: January 22, 2009Publication date: August 6, 2009Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Kai-Li Jiang, Liang Liu, Kai Liu, Qing-Yu Zhao, Yong-Chao Zhai, Shou-Shan Fan
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Publication number: 20090194313Abstract: A coaxial cable includes a core, an insulating layer, a shielding layer, a sheathing layer. The core includes an amount of carbon nanotubes having at least one conductive coating disposed about the carbon nanotubes. The carbon nanotubes are orderly arranged. The insulating layer is about the core. The shielding layer is about the insulating layer. The sheathing layer is about the shielding layer.Type: ApplicationFiled: January 22, 2009Publication date: August 6, 2009Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Kai-Li Jiang, Liang Liu, Kai Liu, Qing-Yu Zhao, Yong-Chao Zhai, Shou-Shan Fan
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Publication number: 20090196982Abstract: A method for making a coaxial cable, the method comprises the steps of: providing a carbon nanotube structure; and forming at least one conductive coating on a plurality of carbon nanotubes of the carbon nanotube structure; a carbon nanotube wire-like structure from the carbon nanotubes with at least one conductive coating; at least one layer of insulating material on the carbon nanotube wire-like structure; at least one layer of shielding material on the at least one layer of insulating material; and one layer of sheathing material on the at least one layer of shielding material.Type: ApplicationFiled: January 22, 2009Publication date: August 6, 2009Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Kai-Li Jiang, Liang Liu, Kai Liu, Qing-Yu Zhao, Yong-Chao Zhai, Shou-Shan Fan