Patents by Inventor Yu Du

Yu 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: 8038867
    Abstract: A device includes a first electrode and a second electrode spaced from the first electrode to define a volume. An anion exchange membrane and a cation exchange membrane are disposed within the volume. A controller controls a supply of electrical current from an electrical source to the first electrode and to the second electrode. The electrical current supply is controlled to switch from a first mode of operation to a second mode of operation providing electrical current having a reverse polarity during each cycle. The electrical current is supplied at a controlled cycle rate and for a controlled duration. The cycle rate is greater than about 100 hertz and less than about 10 kilohertz.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: October 18, 2011
    Assignee: General Electric Company
    Inventors: Yu Du, Yunfeng Liu, Saijun Mao, Xiaoming Yuan, Chao Yang, Rihua Xiong, Chun Cao, Shengxian Wang, Wei Cai, Chang Wei, Jiyang Xia
  • Patent number: 7974076
    Abstract: A desalination system and method of desalinating liquids are provided. The desalination system includes a supercapacitor desalination unit. A first liquid source to be desalinated is provided to the supercapacitor desalination unit while the system is in a charging mode of operation. A second liquid source comprising saturated or supersaturated liquid is provided to the supercapacitor desalination unit when the system is in a discharging mode of operation.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: July 5, 2011
    Assignee: General Electric Company
    Inventors: Rihua Xiong, Wei Cai, Lei Cao, Chang Wei, Yu Du, Philip Mathew Rolchigo
  • Publication number: 20110042219
    Abstract: A non-Faraday ionic species removal process and system is described. The system includes a power supply, a pump for transporting a liquid through the system, and a plurality of porous electrodes. The electrodes , each include an electrically conductive porous portion. The electrodes may also include a substrate contiguous with the porous portion. The porous electrode can be utilized in electrodialysis and electrodialysis reversal systems. A method for forming a porous electrode is described.
    Type: Application
    Filed: November 3, 2010
    Publication date: February 24, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Chang Wei, Yu Du, Wei Cai, Rihua Xiong, Lei Cao
  • Publication number: 20100329973
    Abstract: Provided is a method for forming zinc oxide which includes introducing a zinc vapor and a water vapor to a reactor; providing a zinc particulate to the reactor to promote the reaction between the zinc vapor and water vapor, thereby forming zinc oxide and hydrogen. An apparatus for forming zinc oxide is also provided.
    Type: Application
    Filed: December 11, 2009
    Publication date: December 30, 2010
    Applicant: Industrial Technology Research Institute
    Inventors: Hung-Min CHIEN, Yu-Du Hsu
  • Patent number: 7854294
    Abstract: An earmuff assembly with a double-shell structure is disclosed for use with a sound-attenuating circumaural headset. The earmuff assembly comprises a cup-shaped outer shell mounted on a resilient outer sealing ring and a cup-shaped inner shell mounted on a resilient inner sealing ring. By means of the two sealing rings the outer and the inner shells are brought into abutment with the head surface around an ear of a wearer. Both shells are structurally rigid. The sound attenuation performance is maximized by isolating the inner shell from the outer shell.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: December 21, 2010
    Assignee: Adaptive Technologies, Inc.
    Inventors: Yu Du, Kenji Homma, Michael A. Vaudrey
  • Patent number: 7813106
    Abstract: An electrode assembly is provided. The assembly includes a chargeable electrode configured to adsorb oppositely charged ions, where the electrode comprises a porous material. The assembly further includes an ion exchange material in contact with the porous material of the chargeable electrode, where the ion exchange material is similarly charged as the chargeable electrode, and where the ion exchange material is permeable to the oppositely charged ions and at least partially impermeable to the similarly charged ions.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: October 12, 2010
    Assignee: General Electric Company
    Inventors: Wei Cai, Chang Wei, Lei Cao, Rihua Xiong, Su Lu, Yu Du, Zhigang Deng
  • Publication number: 20100254890
    Abstract: The present invention relates to a method of forming a particulate porous metal oxide or metalloid oxide, as well as uses of the obtained a particulate porous metal oxide or metalloid oxide. A solution of a non-ionic surfactant and either an ionic surfactant or an inorganic salt is formed in an acidic aqueous solution. A metal oxide precursor or a metalloid oxide precursor is added. The formed reaction mixture is heated under reflux upon agitation for a period sufficient to obtain a particulate porous metal oxide or metalloid oxide.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 7, 2010
    Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Yanhui Yang, Siu-Choon Ng, Xianbin Liu, Laisheng Li, Yu Du
  • Publication number: 20100218775
    Abstract: An earmuff assembly with a double-shell structure is disclosed for use with a sound-attenuating circumaural headset. The earmuff assembly comprises a cup-shaped outer shell mounted on a resilient outer sealing ring and a cup-shaped inner shell mounted on a resilient inner sealing ring. By means of the two sealing rings the outer and the inner shells are brought into abutment with the head surface around an ear of a wearer. Both shells are structurally rigid. The sound attenuation performance is maximized by isolating the inner shell from the outer shell.
    Type: Application
    Filed: January 22, 2010
    Publication date: September 2, 2010
    Inventors: Yu Du, Kenji Homma, Michael A. Vaudrey
  • Patent number: 7703572
    Abstract: An earmuff assembly with a double-shell structure is disclosed for use with a sound-attenuating circumaural headset. The earmuff assembly comprises a cup-shaped outer shell mounted on a resilient outer sealing ring and a cup-shaped inner shell mounted on a resilient inner sealing ring. By means of the two sealing rings the outer and the inner shells are brought into abutment with the head surface around an ear of a wearer. Both shells are structurally rigid. The sound attenuation performance is maximized by isolating the inner shell from the outer shell. The two sealing rings are interconnected through a thin skin layer of soft compliant materials, which acts as a vibration isolating/decoupling means between the outer shell and the inner shell.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: April 27, 2010
    Assignee: Adaptive Technologies, Inc.
    Inventors: Yu Du, Kenji Homma, Michael A. Vaudrey
  • Publication number: 20100009153
    Abstract: A composition comprises at least one silver nanoparticulate material, at least one conductive microparticulate material, and less than about 3% wt of an organic or polymeric resin. The composition provides a low curing temperature and upon cure good film properties. Also provided herein is a method of using an ink or paste, comprising: (i) providing the ink or paste comprising at least one silver nanoparticulate material, at least one conductive microparticulate material, and less than about 3% wt of an organic or polymeric resin; and (ii) curing the ink or paste at a temperature at lower than about 200° C. to decompose the organic resin.
    Type: Application
    Filed: June 11, 2009
    Publication date: January 14, 2010
    Inventors: Zhihao Yang, Zhiyoung Xu, Yu Du
  • Publication number: 20090159460
    Abstract: A device includes a first electrode and a second electrode spaced from the first electrode to define a volume. An anion exchange membrane and a cation exchange membrane are disposed within the volume. A controller controls a supply of electrical current from an electrical source to the first electrode and to the second electrode. The electrical current supply is controlled to switch from a first mode of operation to a second mode of operation providing electrical current having a reverse polarity during each cycle. The electrical current is supplied at a controlled cycle rate and for a controlled duration. The cycle rate is greater than about 100 hertz and less than about 10 kilohertz.
    Type: Application
    Filed: January 18, 2008
    Publication date: June 25, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Yu Du, Yunfeng Liu, Saijun Mao, Xiaoming Yuan, Chao Yang, Rihua Xiong, Chun Cao, Shengxian Wang, Wei Cai, Chang Wei, Jiyang Xia
  • Publication number: 20090110806
    Abstract: A method includes: coat a slurry that includes a carbon material, a water-insoluble binder, and a water-soluble polymer on a surface of a current collector to form a template structure; then dry the template structure; and finally, contact the template structure to an aqueous solution, and thereby to remove the water-soluble polymer and to form at least one electrode having a plurality of pores.
    Type: Application
    Filed: November 29, 2007
    Publication date: April 30, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Wei Cai, Lei Cao, Rihua Xiong, Su Lu, Chang Wei, Yu Du
  • Patent number: 7457428
    Abstract: A double hearing protection system comprises a circumaural hearing protector that covers and encircles the pinnae and an earplug device that is inserted into the ear canal. The earplug portion of the system comprises a tether that is coupled to the interior of a circumaural hearing protector. The tether retracts into the earcup when both the earplug and circumaural hearing protector are worn, ensuring that the earseal against the head is not broken by the retractable tether.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: November 25, 2008
    Assignee: Adaptive Technologies, Inc.
    Inventors: Michael A. Vaudrey, William Saunders, Yu Du, Jonathan Hager
  • Publication number: 20080185346
    Abstract: A desalination system and method of desalinating liquids are provided. The desalination system includes a supercapacitor desalination unit. A first liquid source to be desalinated is provided to the supercapacitor desalination unit while the system is in a charging mode of operation. A second liquid source comprising saturated or supersaturated liquid is provided to the supercapacitor desalination unit when the system is in a discharging mode of operation.
    Type: Application
    Filed: February 1, 2007
    Publication date: August 7, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Rihua Xiong, Wei Cai, Lei Cao, Chang Wei, Yu Du, Philip Mathew Rolchigo
  • Publication number: 20080144256
    Abstract: An electrode assembly is provided. The assembly includes a chargeable electrode configured to adsorb oppositely charged ions, where the electrode comprises a porous material. The assembly further includes an ion exchange material in contact with the porous material of the chargeable electrode, where the ion exchange material is similarly charged as the chargeable electrode, and where the ion exchange material is permeable to the oppositely charged ions and at least partially impermeable to the similarly charged ions.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 19, 2008
    Inventors: Wei Cai, Chang Wei, Lei Cao, Rihua Xiong, Su Lu, Yu Du, Zhigang Deng
  • Publication number: 20080128198
    Abstract: An earmuff assembly with a double-shell structure is disclosed for use with a sound-attenuating circumaural headset. The earmuff assembly comprises a cup-shaped outer shell mounted on a resilient outer sealing ring and a cup-shaped inner shell mounted on a resilient inner sealing ring. By means of the two sealing rings the outer and the inner shells are brought into abutment with the head surface around an ear of a wearer. Both shells are structurally rigid. The sound attenuation performance is maximized by isolating the inner shell from the outer shell. The two sealing rings are interconnected through a thin skin layer of soft compliant materials, which acts as a vibration isolating/decoupling means between the outer shell and the inner shell.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 5, 2008
    Inventors: Yu Du, Kenji Homma, Michael A. Vaudrey
  • Publication number: 20080105551
    Abstract: A supercapacitor desalination cell is provided. The cell includes electrodes formed of conducting materials that are configured to adsorb ions in a charging state of the cell and desorb the ions in a discharging state of the cell. The conducting materials comprise conducting composites. An insulating spacer is disposed between the two electrodes and is configured to electrically isolate one electrode from the other. Further, the cell includes a first current collector coupled to the first electrode, and a second current collector coupled to the second electrode. Further, an energy recovery converter may be operatively associated with the cell and configured to recover energy released by the cell while transforming from a charging state to a discharging state. The converter is configured to transfer at least a portion of the recovered energy to a grid in the discharging state of the cell.
    Type: Application
    Filed: December 14, 2005
    Publication date: May 8, 2008
    Inventors: Shengxian Wang, Chang Wei, Lei Cao, Rihua Xiong, Wei Cai, Yu Du
  • Patent number: 7346870
    Abstract: A method for verifying trace widths of a printed circuit board (PCB) layout includes the steps of: loading a PCB layout document from a database; defining a verifying area for a PCB layout specified in the PCB layout document; receiving preset design rules; creating a data structure, and loading information on traces in the verifying area into the data structure; selecting an unverified trace from the data structure; selecting an unverified segment from the selected trace; verifying the selected segment by comparing a width of the selected segment with the rules, and determining whether the selected segment satisfies the rules according to the comparison result; and annotating design rule check (DRC) information if the segment does not satisfy the rules. Other segments of the selected trace and other traces are verified by repeating appropriate of the above-described steps. A related system for implementing the method is also disclosed.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: March 18, 2008
    Assignees: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Xiao-Yu Du
  • Publication number: 20080057398
    Abstract: A non-Faraday ionic species removal process and system is described. The system includes a power supply, a pump for transporting a liquid through the system, and a plurality of porous electrodes. The electrodes, each include an electrically conductive porous portion. The electrodes may also include a substrate contiguous with the porous portion. The porous electrode can be utilized in electrodialysis and electrodialysis reversal systems. A method for forming a porous electrode is described.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 6, 2008
    Applicant: General Electric Company
    Inventors: Chang Wei, Yu Du, Wei Cai, Rihua Xiong, Lei Cao
  • Publication number: 20080025524
    Abstract: A double hearing protection system is disclosed. The earplug portion of the system contains a tether attachment mechanism that may be selectively attached to the interior of a circumaural hearing protector designed with the mating attachment. The tether retracts into the earcup when both the earplug and circumaural hearing protector are worn, ensuring that the earseal against the head is not broken by the retractable tether. The attachment point inside the ear cup mates to the end of the tether in a way that prevents foreign object damage in dangerous work environments, and limits the vibratory path from the earcup to the earplug through a flexible attachment mechanism. The benefit of both the earplug and earcup combined offers the double passive hearing protection for extreme noise environments while providing for a convenient means by which to achieve the double hearing protection and not compromise its performance through the attachment mechanism.
    Type: Application
    Filed: July 27, 2006
    Publication date: January 31, 2008
    Inventors: Michael A. Vaudrey, William Saunders, Yu Du, Jonathan Hager