Patents by Inventor Qing-Chun Du
Qing-Chun Du 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: 8361559Abstract: A method for making a magnesium-based composite material includes mixing nanoscale reinforcements with a melted magnesium-based material to obtain a pre-mixture. The pre-mixture is agitated by an ultrasonic process to obtain a mixture. The mixture is sprayed to a substrate.Type: GrantFiled: July 7, 2009Date of Patent: January 29, 2013Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kam-Shau Chan, Cheng-Shi Chen, Kuo-Jung Chung, Qing-Chun Du, Wen-Zhen Li
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Patent number: 8210423Abstract: The present disclosure relates to a method for fabricating the above-described a magnesium-based composite material. The method includes providing at least two magnesium-based plates, providing at least one nanoscale reinforcement film, sandwiching the at least one nanoscale reinforcement film between the at least two magnesium-based plates to form a preform, and hot rolling the preform to achieve the magnesium-based composite material.Type: GrantFiled: April 26, 2010Date of Patent: July 3, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li, Kai-Li Jiang
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Patent number: 7987894Abstract: An apparatus for fabrication of a magnesium-based carbon nanotube composite material, the apparatus includes a thixomolding machine, and a feeding device. The thixomolding machine includes a heating barrel, a feeding inlet, a nozzle, a heating portion, and a plunger. The heating barrel includes a first end and a second end. The feeding inlet is disposed at the first end. The nozzle is disposed at the second end. The heating portion is disposed around the heating barrel. The plunger is disposed at a center of the heating barrel. The feeding device includes a hopper; an aspirator connected to the hopper, a first container, and a second container. The hopper is in communication with the first container and the second container. A method for fabricating a magnesium-based carbon nanotube composite material is also provided.Type: GrantFiled: August 21, 2008Date of Patent: August 2, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li
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Patent number: 7921899Abstract: A method for fabricating a magnesium-based composite material, the method includes the steps of: (a) providing a magnesium-based melt and a plurality of carbon nanotubes, mixing the carbon nanotubes with the magnesium-based melt to achieve a mixture; (b) injecting the mixture into at least one mold to achieve a preform; and (c) extruding the preform to achieve the magnesium-based carbon nanotube composite material.Type: GrantFiled: March 31, 2008Date of Patent: April 12, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li
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Patent number: 7799437Abstract: The present invention relates to a magnesium-based composite material includes a magnesium-based metallic material, and at least one nanoscale reinforcement film disposed therein. The present invention also relates to a method for fabricating the above-described a magnesium-based composite material, the method includes the steps of: (a) providing at least two magnesium-based plates; (b) providing at least one nanoscale reinforcement film; (c) sandwiching the at least one nanoscale reinforcement film between the at least two magnesium-based plates to form a preform; and (d) hot rolling the preform to achieve the magnesium-based composite material.Type: GrantFiled: April 24, 2008Date of Patent: September 21, 2010Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li, Kai-Li Jiang
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Publication number: 20100200125Abstract: The present disclosure relates to a method for fabricating the above-described a magnesium-based composite material. The method includes providing at least two magnesium-based plates, providing at least one nanoscale reinforcement film, sandwiching the at least one nanoscale reinforcement film between the at least two magnesium-based plates to form a preform, and hot rolling the preform to achieve the magnesium-based composite material.Type: ApplicationFiled: April 26, 2010Publication date: August 12, 2010Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: KAM-SHAU CHAN, CHENG-SHI CHEN, GUANG-LIANG SHEU, QING-CHUN DU, WEN-ZHEN LI, KAI-LI JIANG
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Publication number: 20100075064Abstract: A method for making a magnesium-based composite material includes mixing nanoscale reinforcements with a melted magnesium-based material to obtain a pre-mixture. The pre-mixture is agitated by an ultrasonic process to obtain a mixture. The mixture is sprayed to a substrate.Type: ApplicationFiled: July 7, 2009Publication date: March 25, 2010Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: KAM-SHAU CHAN, CHENG-SHI CHEN, KUO-JUNG CHUNG, QING-CHUN DU, WEN-ZHEN LI
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Publication number: 20090162574Abstract: A method for fabricating a light metal-based nano-composite material, the method includes the steps of: (a) providing melted metal and nanoscale reinforcements; (b) ultrasonically dispersing the nanoscale reinforcements in the melted metal by means of ultrasonically mixing to achieve a mixture with the nanoscale reinforcements uniformly dispersed therein; and (c) cooling the mixture.Type: ApplicationFiled: November 24, 2008Publication date: June 25, 2009Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Nai-Yi Li, Tadayoshi Tsukeda, Kuo-Jung Chung, Kam-Shau Chan, Cheng-Shi Chen, Qing-Chun Du, Wen-Zhen Li
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Publication number: 20090127743Abstract: A method for fabricating a magnesium-based composite material, the method includes the steps of: (a) providing a magnesium-based melt and a plurality of carbon nanotubes, mixing the carbon nanotubes with the magnesium-based melt to achieve a mixture; (b) injecting the mixture into at least one mold to achieve a preform; and (c) extruding the preform to achieve the magnesium-based carbon nanotube composite material.Type: ApplicationFiled: March 31, 2008Publication date: May 21, 2009Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: KAM-SHAU CHAN, CHENG-SHI CHEN, GUANG-LIANG SHEU, QING-CHUN DU, WEN-ZHEN LI
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Publication number: 20090081408Abstract: The present invention relates to a magnesium-based composite material includes a magnesium-based metallic material, and at least one nanoscale reinforcement film disposed therein. The present invention also relates to a method for fabricating the above-described a magnesium-based composite material, the method includes the steps of: (a) providing at least two magnesium-based plates; (b) providing at least one nanoscale reinforcement film; (c) sandwiching the at least one nanoscale reinforcement film between the at least two magnesium-based plates to form a preform; and (d) hot rolling the preform to achieve the magnesium-based composite material.Type: ApplicationFiled: April 24, 2008Publication date: March 26, 2009Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li, Kai-Li Jiang
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Publication number: 20090074603Abstract: A method for fabricating a magnesium-based composite material, the method includes the steps of: (a) providing a large amount of magnesium-based powder and a large amount of nanoscale reinforcements; (b) uniformly mixing the magnesium-based powder and the nanoscale reinforcements to form a mixture; and (c) compacting the mixture at a high velocity in a protective gas to achieve the magnesium-based composite material. High velocity compaction equipment for fabricating the magnesium-based composite material includes a sealing chamber, a gas pumping device, a mold, and a hammer. The gas pumping device is connected to the sealing chamber. The mold is disposed in the sealing chamber with an aperture formed on the top thereof. The hammer is disposed in the sealing chamber and above the mold, and moving along longitudinal thereof at a controllable ramming speed.Type: ApplicationFiled: April 9, 2008Publication date: March 19, 2009Applicants: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Kam-Shau Chan, Cheng-Shi Chen, Qing-Chun Du, Wen-Zhen Li
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Publication number: 20090057957Abstract: An apparatus for fabrication of a magnesium-based carbon nanotube composite material, the apparatus includes a thixomolding machine, and a feeding device. The thixomolding machine includes a heating barrel, a feeding inlet, a nozzle, a heating portion, and a plunger. The heating barrel includes a first end and a second end. The feeding inlet is disposed at the first end. The nozzle is disposed at the second end. The heating portion is disposed around the heating barrel. The plunger is disposed at a center of the heating barrel. The feeding device includes a hopper; an aspirator connected to the hopper, a first container, and a second container. The hopper is in communication with the first container and the second container. A method for fabricating a magnesium-based carbon nanotube composite material is also provided.Type: ApplicationFiled: August 21, 2008Publication date: March 5, 2009Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li