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).

  • Patent number: 8361559
    Abstract: 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: Grant
    Filed: July 7, 2009
    Date of Patent: January 29, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Kam-Shau Chan, Cheng-Shi Chen, Kuo-Jung Chung, Qing-Chun Du, Wen-Zhen Li
  • Patent number: 8210423
    Abstract: 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: Grant
    Filed: April 26, 2010
    Date of Patent: July 3, 2012
    Assignees: 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
  • Patent number: 7987894
    Abstract: 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: Grant
    Filed: August 21, 2008
    Date of Patent: August 2, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li
  • Patent number: 7921899
    Abstract: 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: Grant
    Filed: March 31, 2008
    Date of Patent: April 12, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li
  • Patent number: 7799437
    Abstract: 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: Grant
    Filed: April 24, 2008
    Date of Patent: September 21, 2010
    Assignees: 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
  • Publication number: 20100200125
    Abstract: 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: Application
    Filed: April 26, 2010
    Publication date: August 12, 2010
    Applicants: 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
  • Publication number: 20100075064
    Abstract: 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: Application
    Filed: July 7, 2009
    Publication date: March 25, 2010
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: KAM-SHAU CHAN, CHENG-SHI CHEN, KUO-JUNG CHUNG, QING-CHUN DU, WEN-ZHEN LI
  • Publication number: 20090162574
    Abstract: 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: Application
    Filed: November 24, 2008
    Publication date: June 25, 2009
    Applicants: 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
  • Publication number: 20090127743
    Abstract: 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: Application
    Filed: March 31, 2008
    Publication date: May 21, 2009
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: KAM-SHAU CHAN, CHENG-SHI CHEN, GUANG-LIANG SHEU, QING-CHUN DU, WEN-ZHEN LI
  • Publication number: 20090081408
    Abstract: 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: Application
    Filed: April 24, 2008
    Publication date: March 26, 2009
    Applicants: 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
  • Publication number: 20090074603
    Abstract: 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: Application
    Filed: April 9, 2008
    Publication date: March 19, 2009
    Applicants: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Kam-Shau Chan, Cheng-Shi Chen, Qing-Chun Du, Wen-Zhen Li
  • Publication number: 20090057957
    Abstract: 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: Application
    Filed: August 21, 2008
    Publication date: March 5, 2009
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Kam-Shau Chan, Cheng-Shi Chen, Guang-Liang Sheu, Qing-Chun Du, Wen-Zhen Li