Patents by Inventor Hau Wang

Hau Wang 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).

  • Publication number: 20200247064
    Abstract: An additive manufacturing (AM) system, an AM method, and an AM feature extraction method are provided. The AM system includes an AM tool, a product metrology system, an in-situ metrology system, a virtual metrology (VM) system, a compensator, a track planner, a controller, a simulator and an augmented reality (AR) device. The simulator is used to find feasible parameter ranges, while the AR device is used to support operations and maintenance of the AM tool. The product metrology system, the in-situ metrology system and the VM system are integrated to estimate the variation of material on a powder bed of the AM tool. The compensator is used for compensating the process variation by adjusting process parameters. The product metrology system is used to measure the quality of products. The in-situ metrology system is used to collect features of melt pools on the powder bed.
    Type: Application
    Filed: April 22, 2020
    Publication date: August 6, 2020
    Inventors: Haw-Ching YANG, Yu-Lung LO, Hung-Chang HSIAO, Shyh-Hau WANG, Min-Chun HU, Chih-Hung HUANG, Fan-Tien CHENG
  • Publication number: 20200147893
    Abstract: An additive manufacturing (AM) system, an AM method, and an AM feature extraction method are provided. The AM system includes an AM tool, a product metrology system, an in-situ metrology system, a virtual metrology (VM) system, a compensator, a track planner, a controller, a simulator and an augmented reality (AR) device. The simulator is used to find feasible parameter ranges, while the AR device is used to support operations and maintenance of the AM tool. The product metrology system, the in-situ metrology system and the VM system are integrated to estimate the variation of material on a powder bed of the AM tool. The compensator is used for compensating the process variation by adjusting process parameters. The product metrology system is used to measure the quality of products. The in-situ metrology system is used to collect features of melt pools on the powder bed.
    Type: Application
    Filed: October 2, 2019
    Publication date: May 14, 2020
    Inventors: Haw-Ching YANG, Yu-Lung LO, Hung-Chang HSIAO, Shyh-Hau WANG, Min-Chun HU, Chih-Hung HUANG, Fan-Tien CHENG
  • Patent number: 9139905
    Abstract: A method and system for providing a micro-channel plate detector. An anodized aluminum oxide membrane is provided and includes a plurality of nanopores which have an Al coating and a thin layer of an emissive oxide material responsive to incident radiation, thereby providing a plurality of radiation sensitive channels for the micro-channel plate detector.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: September 22, 2015
    Assignee: UChicago Argonne, LLC
    Inventors: Jeffrey W. Elam, Seon W. Lee, Hsien-Hau Wang, Michael J. Pellin, Karen Byrum, Henry J. Frisch
  • Publication number: 20140052393
    Abstract: Disclosed is a method for determining the spatial location of a conducting wire and an aerial earth wire of a power transmission line, so as to solve the problem that the method in the prior art is not applicable to determining the spatial location of the conducting wire and the aerial earth wire of the conventional power transmission line with respect to lightning shielding failures.
    Type: Application
    Filed: August 29, 2011
    Publication date: February 20, 2014
    Applicants: SHANXI ELECTRIC POWER RESEARCH INSTITUTE, SHANXI ELECTRIC POWER COMPANY
    Inventors: Zhen Tang, Kanging Wang, Yujun Jia, Jianguo Xu, Yuewen Qi, Xuezhi Wan, Honglong Guo, Shikai Wei, Meisheng Chang, Xingyong Zhao, Jianhua Lian, Yong Mi, Kangmin Mi, Aixiang Feng, Hua Yang, Hau Wang, Hongwei Wang, Tianzheng Wang
  • Publication number: 20110210259
    Abstract: A method and system for providing a micro-channel plate detector. An anodized aluminum oxide membrane is provided and includes a plurality of nanopores which have an Al coating and a thin layer of an emissive oxide material responsive to incident radiation, thereby providing a plurality of radiation sensitive channels for the micro-channel plate detector.
    Type: Application
    Filed: February 22, 2011
    Publication date: September 1, 2011
    Inventors: Jeffrey W. Elam, Hsien-Hau Wang, Michael J. Pellin, Karen Byrum, Henry J. Frisch, Seon W. Lee
  • Patent number: 7820587
    Abstract: A hydrogen detector with a porous layer of alumina. Pores with average pore diameters in the range of from about 10 to about 200 nanometers (nms) and average pore depths in the range of from about 10 to about 1000 nms have Pd nanoparticles in the pores forming a film. Electrodes on the Pd film measure changes in electrical resistance of the Pd film in the presence of hydrogen. Pd may be in the form of nanotubes. The alumina is anodized for various times to form the nanowalls or pores and vary the pore depths.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: October 26, 2010
    Assignee: UChicago Argonne, LLC
    Inventors: Hsien-Hau Wang, Jianjiang Lu, Shufang Yu
  • Patent number: 7818993
    Abstract: Single-walled carbon nanotubes (SWNTs) are decorated with metal nanoparticles to form high-performance flexible hydrogen sensors. The special process to form the high-performance flexible hydrogen sensors can combine a dry transfer printing technique and modification of SWNTs with palladium (Pd) nanoparticles to provide high-performance hydrogen sensors with excellent mechanical flexibility on plastic substrates. Two approaches can be used to decorate the SWNTs. One is physical deposition, such as electron beam evaporation (EBE) and the other is electrochemical deposition which can selectively grow palladium nanoparticles on the surface of the SWNTs, resulting in significantly decreasing the use of palladium. Preferably, the Pd nanoparticles are deposed on the SWNTs in a discontinuous arrangement so that the Pd nanoparticles are spaced away from each other to form individual discontinuous Pd nanoparticles rather a continuous Pd film.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: October 26, 2010
    Assignee: UChicago Argonne, LLC
    Inventors: Yugang Sun, Hsien-Hau Wang
  • Publication number: 20100222458
    Abstract: The present invention provides the compositions and processing methods of an environmental-friendly, multiple-effect powder. The compositions of environmental-friendly, multiple-effect powder include: cement, discarded PCB powder, resin, wasted coating powder and volcano mud powder. The environmental-friendly, multiple-effect powder of the present invention can also be widely applied to civil works as a coating/filling material or other composite building materials due to its advantages such as good thermal insulation, noise absorption, water-proofing, resistance to mildew, rustiness and acid/alkali, excellent robustness and moisture retention with better industrial and economic benefits.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 2, 2010
    Inventors: Wu-Tian Wang, Wu-Ching Wang, Mei-Yu Huang Wang, Shiau-Ming Wang, Shiau-Hau Wang, Shi-Cheng Huang, Chen Hong, Teng-Ki Lin
  • Publication number: 20090084159
    Abstract: Single-walled carbon nanotubes (SWNTs) are decorated with metal nanoparticles to form high-performance flexible hydrogen sensors. The special process to form the high-performance flexible hydrogen sensors can combine a dry transfer printing technique and modification of SWNTs with palladium (Pd) nanoparticles to provide high-performance hydrogen sensors with excellent mechanical flexibility on plastic substrates. Two approaches can be used to decorate the SWNTs. One is physical deposition, such as electron beam evaporation (EBE) and the other is electrochemical deposition which can selectively grow palladium nanoparticles on the surface of the SWNTs, resulting in significantly decreasing the use of palladium. Preferably, the Pd nanoparticles are deposed on the SWNTs in a discontinuous arrangement so that the Pd nanoparticles are spaced away from each other to form individual discontinuous Pd nanoparticles rather a continuous Pd film.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Applicant: UChicago Argonne, LLC
    Inventors: Yugang Sun, Hsien-Hau Wang
  • Publication number: 20070151850
    Abstract: A hydrogen detector with a porous layer of alumina. Pores with average pore diameters in the range of from about 10 to about 200 nanometers (nms) and average pore depths in the range of from about 10 to about 1000 nms have Pd nanoparticles in the pores forming a film. Electrodes on the Pd film measure changes in electrical resistance of the Pd film in the presence of hydrogen. Pd may be in the form of nanotubes. The alumina is anodized for various times to form the nanowalls or pores and vary the pore depths.
    Type: Application
    Filed: November 28, 2006
    Publication date: July 5, 2007
    Applicant: UChicago Argonne, LLC
    Inventors: Hsien-Hau Wang, Jianjiang Lu, Shufang Yu
  • Patent number: 7220229
    Abstract: A density/solute monitor having at least one ultrasound probe, a signal processing unit, and a computing mechanism, and process for using the same, to measure phase shift between emitting and receiving ultrasound, sound velocity, compressibility, density, and solute concentration of fluid flowing through a fluid processing system. The ultrasound probe emits and receives ultrasound waves through the fluid and the signal-processing unit and computing mechanism process the ultrasound waves to determine phase and time shift. The computing mechanism converts phase shift to density, compressibility, and solute concentration measurements of the fluid. Calibrating fluids calibrate the detected phase shift in terms of sound velocity in the factory. Measurements provide information about passage of solutes and flow to achieve better solute collection efficiency, solution purity, and control of fluid processing systems.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: May 22, 2007
    Assignee: Global Monitors, Inc.
    Inventors: Lian-Pin Lee, Jen-Shih Lee, Shyh-Hau Wang, Mike Min
  • Publication number: 20060289351
    Abstract: This invention provides ways to fabricate nanotubes and nanobead arrays by utilizing nanopores in anodic aluminum oxide (AAO) membranes. Nanotubes of bismuth and other low melting point metals with controlled diameters and lengths can be fabricated by sintering AAO coated with appropriate metals at temperatures above their melting points. Carbon nanotubes may also be readily formed by carbonizing a polymer on the interior walls of the nanopores in AAO membranes. Palladium nanobead arrays which can be used as ultrafast hydrogen sensors are fabricated by coating the flat surface of AAO membranes with controlled pore-wall ratios.
    Type: Application
    Filed: June 24, 2005
    Publication date: December 28, 2006
    Inventors: Zhili Xiao, Yurong Han, Hsien-Hau Wang, Gerold Willing, Ulrich Welp, Wai-Kwong Kwok
  • Publication number: 20060077385
    Abstract: The present invention discloses an apparatus for measuring spectrum and image with high spatial resolution and spectral resolution. The apparatus comprises an imaging side telecentric lens for collecting light from an object, an optical slit positioned behind the imaging side telecentric lens, an aspheric lens for collimating lights from the optical slits, a dispersing device for separating the lights of different wavelengths into a plurality of sub-rays of different entrance angle, an achromatic lens for focusing the sub-rays, and an optical sensor for detecting the optical intensity of the sub-rays. The dispersing device can be a transmission or reflection diffraction grating, and the optical sensor may consist of a plurality of photo-detectors positioned in a two dimensional array.
    Type: Application
    Filed: June 8, 2005
    Publication date: April 13, 2006
    Inventors: Hau Wang, Fu Yang
  • Patent number: 7015072
    Abstract: In one aspect, the present invention relates to a method of manufacturing an integrated circuit package, the method including installing a carrier onto a substrate, attaching a semiconductor die to the substrate, and aligning an assembly over the semiconductor die, wherein the assembly includes a heat sink and a thermally conductive element. This aspect further includes resting the assembly on the carrier such that the thermally conductive element does not directly contact the semiconductor die, and encapsulating the thermally conductive element and the heat sink such that a portion of the heat sink is exposed to the surroundings of the package.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: March 21, 2006
    Assignee: ASAT Limited
    Inventors: Edward G. Combs, Robert P. Sheppard, Tai Wai Pun, Hau Wang Ng, Chun Ho Fan, Neil Robert McLellen
  • Patent number: 6869983
    Abstract: An in situ polymer microstructure formation method. The monomer mixture is polymerized in a solvent/precipitant through exposure to ionizing radiation in the absence any chemical mediators. If an exposure mask is employed to block out certain regions of the radiation cross section, then a patterned microstructure is formed. The polymerization mechanism is based on the so-called free-radical retrograde-precipitation polymerization process, in which polymerization occurs while the system is phase separating above the lower critical solution temperature. This method was extended to produce a crosslinked line grid-pattern of poly (N-isopropylacrylamide), which has been known to have thermoreversible properties.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: March 22, 2005
    Assignee: The University of Chicago
    Inventors: Gerard T. Caneba, Vijaya Raghavan Tirumala, Derrick C. Mancini, Hsien-Hau Wang
  • Publication number: 20050043428
    Abstract: An in situ polymer microstructure formation method. The monomer mixture is polymerized in a solvent/precipitant through exposure to ionizing radiation in the absence any chemical mediators. If an exposure mask is employed to block out certain regions of the radiation cross section, then a patterned microstructure is formed. The polymerization mechanism is based on the so-called free-radical retrograde-precipitation polymerization process, in which polymerization occurs while the system is phase separating above the lower critical solution temperature. This method was extended to produce a crosslinked line grid-pattern of poly (N-isopropylacrylamide), which has been known to have thermoreversible properties.
    Type: Application
    Filed: June 10, 2003
    Publication date: February 24, 2005
    Inventors: Gerard Caneba, Vijaya Tirumala, Derrick Mancini, Hsien-Hau Wang
  • Publication number: 20040087860
    Abstract: A density/solute monitor having at least one ultrasound probe, a signal processing unit, and a computing mechanism, and process for using the same, to measure phase shift between emitting and receiving ultrasound, sound velocity, compressibility, density, and solute concentration of fluid flowing through a fluid processing system. The ultrasound probe emits and receives ultrasound waves through the fluid and the signal-processing unit and computing mechanism process the ultrasound waves to determine phase and time shift. The computing mechanism converts phase shift to density, compressibility, and solute concentration measurements of the fluid. Calibrating fluids calibrate the detected phase shift in terms of sound velocity in the factory. Measurements provide information about passage of solutes and flow to achieve better solute collection efficiency, solution purity, and control of fluid processing systems.
    Type: Application
    Filed: October 20, 2003
    Publication date: May 6, 2004
    Inventors: Lian-Pin Lee, Jen-Shih Lee, Shyh-Hau Wang, Mike Mia
  • Patent number: 4675415
    Abstract: A new class of organic superconductors having the formula (ET).sub.2 MX.sub.2 wherein ET represents bis(ethylenedithio)-tetrathiafulvalene, M is a metal such as Au, Ag, In, Tl, Rb, Pd and the like and X is a halide. The superconductor (ET).sub.2 AuI.sub.2 exhibits a transition temperature of 5 K. which is high for organic superconductors.
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: June 23, 1987
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Jack M. Williams, Hsien-Hau Wang, Mark A. Beno
  • Patent number: 4632776
    Abstract: A new class of organic superconductors having the formula (ET).sub.2 MX.sub.2 wherein ET represents bis(ethylenedithio)-tetrathiafulvalene, M is a metal such as Au, Ag, In, Tl, Rb, Pd and the like and X is a halide. The superconductor (ET).sub.2 AuI.sub.2 exhibits a transition temperature of 5 K which is high for organic superconductors.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: December 30, 1986
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Jack M. Williams, Hsien-Hau Wang, Mark A. Beno