Patents by Inventor Xiang Luo
Xiang Luo 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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Publication number: 20160006236Abstract: The present invention provides a direct current circuit breaker and its implementation method, which includes the cutout circuit, the commutation circuit and the energy absorption circuit connected in parallel, wherein the cutout circuit includes cutout inductance and cutout unit connected in series, the commutation circuit includes commutation inductance, commutation unit and mechanical switch connected in series, commutation unit has a smaller on-resistance compared to cutout unit. The direct current circuit breaker topology of the present invention is novelty, concise, fully functional, easy to control and can flexible extend to apply to different voltage occasion.Type: ApplicationFiled: December 3, 2013Publication date: January 7, 2016Applicant: STATE GRID CORPORATION OF CHINAInventors: Guangfu Tang, Chong Gao, Xiang Luo, Xiaoguang Wei, Yufeng Qiu, Junzheng Cao
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Patent number: 9023477Abstract: The present invention relates to a thermally conductive pad and a method for producing the same. The thermally conductive pad includes an array of carbon nanotubes and a polymer matrix. The array of carbon nanotubes has a density in the approximate range from 0.1 g/cm3 to 2.2 g/cm3. The array of carbon nanotubes is incorporated in the polymer matrix by way of polymerization of a pre-polymer of the polymer matrix in situ. Moreover, the method for producing the thermally conductive pad is also included.Type: GrantFiled: December 20, 2007Date of Patent: May 5, 2015Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Chun-Xiang Luo, Liang Liu, Kai-Li Jiang, Chang-Hong Liu, Shou-Shan Fan
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Patent number: 8926934Abstract: A method for growing an array of carbon nanotubes includes the steps of: (a) providing a substrate; (b) forming a catalyst film on the substrate, the catalyst film including carbonaceous material; (c) introducing a mixture of a carrier gas and a carbon source gas flowing across the catalyst film; (d) focusing a laser beam on the catalyst film to locally heat the catalyst to a predetermined reaction temperature; and (e) growing an array of the carbon nanotubes from the substrate.Type: GrantFiled: November 2, 2007Date of Patent: January 6, 2015Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kai-Li Jiang, Zhuo Chen, Chun-Xiang Luo, Shou-Shan Fan
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Publication number: 20140363586Abstract: A method for growing an array of carbon nanotubes includes the steps of: (a) providing a substrate; (b) forming a catalyst film on the substrate, the catalyst film including carbonaceous material; (c) introducing a mixture of a carrier gas and a carbon source gas flowing across the catalyst film; (d) focusing a laser beam on the catalyst film to locally heat the catalyst to a predetermined reaction temperature; and (e) growing an array of the carbon nanotubes from the substrate.Type: ApplicationFiled: November 2, 2007Publication date: December 11, 2014Applicants: HON HAI Precision Industry CO., LTD., Tsinghua UniversityInventors: Kai-Li Jiang, Zhuo Chen, Chun-Xiang Luo, Shou-Shan Fan
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Patent number: 8821975Abstract: A method for making a branched carbon nanotube structure includes steps, as follows: providing a substrate and forming a buffer layer on a surface of the substrate; depositing a catalyst layer on the surface of the buffer layer; putting the substrate into a reactive device; and forming the branched carbon nanotubes on the surface of the buffer layer and along the surface of the buffer layer by a chemical vapor deposition method. The material of the catalyst layer is non-wetting with the material of the buffer layer at a temperature that the branched carbon nanotube are formed. A yield of the branched carbon nanotubes in the structure can reach about 50%.Type: GrantFiled: October 26, 2007Date of Patent: September 2, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Chun-Xiang Luo, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
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Publication number: 20140205765Abstract: A method for manufacturing carbon nanotubes is provided. First, a substrate having a first surface and a second surface opposite to the first surface is provided. Second, a catalyst film is formed on the first surface of the substrate, wherein the catalyst film comprises a carbonaceous material. Third, a mixture of a carrier gas and a carbon source gas is flew across the catalyst film. Forth, a focused laser beam is irradiated on the substrate to grow a carbon nanotube array from the substrate.Type: ApplicationFiled: March 25, 2014Publication date: July 24, 2014Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITYInventors: CHUN-XIANG LUO, KAI-LI JIANG, SHOU-SHAN FAN
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Publication number: 20140047458Abstract: The present invention relates to the technical field of communications, and provides an app icon processing method and a communication terminal. The processing method comprises the steps of: determining whether or not an existing application is supported by the current operating environment, the current operating environment comprising the current network environment and/or the current terminal environment, etc.; then, inactivating the app icon corresponding to the existing application not supported by the current operating environment, or, downloading and displaying an application supported by the current operating environment. Preferably, the inactivated app icon is removed or displayed in an inactive state. In this way, in the present invention, the app icons of a plurality of inactive applications can be hidden on the communication terminal so that app icons are cleared automatically, thus aiding the user to find quickly the needed and active app icons.Type: ApplicationFiled: February 18, 2011Publication date: February 13, 2014Inventors: Jun Li, Wu Yuan, Chongyi Pu, Xiang Luo
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Publication number: 20130243768Abstract: The invention provides multimerization polypeptides capable of conferring formation of multimers when the multimerization polypeptide is linked to a molecule, such as a heterologous polypeptide sequence.Type: ApplicationFiled: March 11, 2013Publication date: September 19, 2013Applicant: Perlan Therapeutics, Inc.Inventors: Fang FANG, Guang-Xiang Luo, Lori Allison Kohlstaedt, Catherine Helen Charles
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Patent number: 8481128Abstract: A method for growing an array of carbon nanotubes includes the steps of: (a) providing a substrate having a first substrate surface and a second substrate surface opposite to the first substrate surface; (b) forming a catalyst film on the first substrate surface; (c) flowing a mixture of a carrier gas and a first carbon source gas over the catalyst film on the first substrate surface; (d) focusing a laser beam on the second substrate surface to locally heat the substrate to a predetermined reaction temperature; and (e) growing an array of the carbon nanotubes on the first substrate surface via the catalyst film.Type: GrantFiled: November 2, 2007Date of Patent: July 9, 2013Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Zhuo Chen, Chun-Xiang Luo, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 8394771Abstract: The invention provides multimerization polypeptides capable of conferring formation of multimers when the multimerization polypeptide is linked to a molecule, such as a heterologous polypeptide sequence.Type: GrantFiled: October 3, 2007Date of Patent: March 12, 2013Assignee: Perlan Therapeutics, Inc.Inventors: Fang Fang, Guang-Xiang Luo, Lori Allison Kohlstaedt, Catherine Helen Charles
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Publication number: 20120064258Abstract: A method for manufacturing carbon nanotubes includes providing a substrate having a first surface and a second surface opposite to the first surface, forming a catalyst film on the first surface of the substrate, wherein the catalyst film comprises a carbonaceous material, flowing a mixture of a carrier gas and a carbon source gas across the catalyst film, and irradiating a focused laser beam on the substrate to grow a carbon nanotube array from the substrate.Type: ApplicationFiled: November 17, 2011Publication date: March 15, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITYInventors: CHUN-XIANG LUO, KAI-LI JIANG, SHOU-SHAN FAN
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Patent number: 8088454Abstract: A method for making a field emission cathode includes the steps of: (a) providing a substrate having a first substrate surface and a second substrate surface opposite to the first substrate surface; (b) forming a conductive film on the first substrate surface; (c) forming a light absorption layer on the conductive film; (d) forming a catalyst film on the light absorption layer; (e) flowing a mixture of a carrier gas and a carbon source gas over the catalyst film; (f) focusing a laser beam on the catalyst film and/or on the second substrate surface to locally heat the catalyst to a predetermined reaction temperature; and (g) growing an array of the carbon nanotubes via the catalyst film to form a field emission cathode.Type: GrantFiled: November 2, 2007Date of Patent: January 3, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Zhuo Chen, Chun-Xiang Luo, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 8077318Abstract: An apparatus for manufacturing carbon nanotubes includes an observation device, a work stage, a laser device, and a lighting device. The observation device includes an observation tube, an observation window arranged on the top of the observation tube, a first half-reflecting, pellicle mirror installed with an angle 45° in the observation tube, and a second half-reflecting, pellicle mirror installed parallel to the first half-reflecting, pellicle mirror. The work stage is disposed under and separated from the observation tube with a certain distance. The laser device is arranged perpendicular to the observation device and corresponding to the first half-reflecting, pellicle mirror. The lighting device is arranged perpendicular to the observation device and corresponding to the second half-reflecting, pellicle mirror. The observation device, the laser device and the lighting device are optically conjugated/linked with one another.Type: GrantFiled: November 12, 2007Date of Patent: December 13, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Chun-Xiang Luo, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 8048397Abstract: A method for making a field emission cathode includes the steps of: (a) providing a substrate having a first substrate surface and a second substrate surface opposite to the first substrate surface; (b) forming a conductive film on the first substrate surface; (c) forming a catalyst film on the conductive film, the catalyst film including carbonaceous material; (d) flowing a mixture of a carrier gas and a carbon source gas over the catalyst film; (e) focusing a laser beam on the catalyst film and/or on the second substrate surface to locally heat the catalyst to a predetermined reaction temperature; and (f) growing an array of the carbon nanotubes via the catalyst film to form a field emission cathode.Type: GrantFiled: November 2, 2007Date of Patent: November 1, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Zhuo Chen, Chun-Xiang Luo, Kai-Li Jiang, Shou-Shan Fan
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Publication number: 20100277735Abstract: An apparatus for manufacturing carbon nanotubes includes an observation device, a work stage, a laser device, and a lighting device. The observation device includes an observation tube, an observation window arranged on the top of the observation tube, a first half-reflecting, pellicle mirror installed with an angle 45° in the observation tube, and a second half-reflecting, pellicle mirror installed parallel to the first half-reflecting, pellicle mirror. The work stage is disposed under and separated from the observation tube with a certain distance. The laser device is arranged perpendicular to the observation device and corresponding to the first half-reflecting, pellicle mirror. The lighting device is arranged perpendicular to the observation device and corresponding to the second half-reflecting, pellicle mirror. The observation device, the laser device and the lighting device are optically conjugated/linked with one another.Type: ApplicationFiled: November 12, 2007Publication date: November 4, 2010Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHUN-XIANG LUO, KAI-LI JIANG, SHOU-SHAN FAN
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Patent number: 7820133Abstract: A method for growing an array of carbon nanotubes includes the steps of: (a) providing a substrate having a first surface and a second surface opposite to the first surface; (b) forming a catalyst film on the first surface of the substrate; (c) flowing a mixture of a carrier gas and a carbon source gas over the catalyst film; (d) providing a semiconductor laser system to generate a focused laser beam; and (e) irradiating the focused laser beam on the substrate to grow an array of carbon nanotubes on the substrate.Type: GrantFiled: November 2, 2007Date of Patent: October 26, 2010Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Zhuo Chen, Chun-Xiang Luo, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 7780940Abstract: A method for making an array of carbon nanotubes includes the steps of: (a) providing a substrate having a first surface and a second surface opposite to the first surface; (b) forming a catalyst film on the first surface of the substrate; (c) flowing a mixture of a carrier gas and a carbon source gas over the catalyst film; (d) generating a laser beam using a galvanometric scanning system, directing the laser beam toward/on one of the first surface and the second surface to locally heat the catalyst film to a predetermined temperature; and (e) growing an array of the carbon nanotubes from the substrate.Type: GrantFiled: November 2, 2007Date of Patent: August 24, 2010Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Zhuo Chen, Chun-Xiang Luo, Kai-Li Jiang, Shou-Shan Fan
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Publication number: 20090053515Abstract: The present invention relates to a thermally conductive pad and a method for producing the same. The thermally conductive pad includes an array of carbon nanotubes and a polymer matrix. The array of carbon nanotubes has a density in the approximate range from 0.1 g/cm3 to 2.2 g/cm3. The array of carbon nanotubes is incorporated in the polymer matrix by way of polymerization of a pre-polymer of the polymer matrix in situ. Moreover, the method for producing the thermally conductive pad is also included.Type: ApplicationFiled: December 20, 2007Publication date: February 26, 2009Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Chun-Xiang Luo, Liang Liu, Kai-Li Jiang, Chang-Hong Liu, Shou-Shan Fan
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Publication number: 20090029052Abstract: A method for producing a composite material with high-density array of carbon nanotubes, includes the steps of: (a) providing a substrate with an array of carbon nanotubes formed thereon; (b) applying a liquid polymer precursor to the array of carbon nanotubes such that the liquid polymer precursor infuses into the array of carbon nanotubes; (c) compressing the array of carbon nanotubes in directions parallel to a first axis parallel to a surface of the substrate to form a high-density array of carbon nanotubes with a density in the approximate range from 0.1 g/cm3 to 2.2 g/cm3; and (d) polymerizing the liquid polymer precursor to form a composite material comprising a polymer matrix with the high-density array of carbon nanotubes incorporated therein.Type: ApplicationFiled: December 20, 2007Publication date: January 29, 2009Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Chun-Xiang Luo, Liang Liu, Kai-Li Jiang, Chang-Hong Liu, Shou-Shan Fan
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Publication number: 20080299308Abstract: A method for making a branched carbon nanotube structure includes steps, as follows: providing a substrate and forming a buffer layer on a surface of the substrate; depositing a catalyst layer on the surface of the buffer layer; putting the substrate into a reactive device; and forming the branched carbon nanotubes on the surface of the buffer layer and along the surface of the buffer layer by a chemical vapor deposition method. The material of the catalyst layer is non-wetting with the material of the buffer layer at a temperature that the branched carbon nanotube are formed. A yield of the branched carbon nanotubes in the structure can reach about 50%.Type: ApplicationFiled: October 26, 2007Publication date: December 4, 2008Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Chun-Xiang Luo, Liang Liu, Kai-Li Jiang, Shou-Shan Fan