Patents Assigned to The Hong Kong University of Science & Technology
  • Patent number: 10381564
    Abstract: A method of fabricating a hybrid organic-inorganic halide perovskite film includes depositing a precursor layer onto a substrate, the precursor layer comprising metal halide, placing an organic source-material layer onto a boat, the organic source-material layer comprising an organic cation, and annealing the precursor layer and the organic source-material layer in a vacuum chamber enclosed in a constrained volume.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: August 13, 2019
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Hoi Sing Kwok, Guijun Li, Yeuk Lung Jacob Ho, Man Wong
  • Patent number: 10383086
    Abstract: When access point signals are altered, conventional fingerprint-based indoor localization techniques are note accuracy. Localization with altered access point and fingerprint updating can achieves accurate indoor localization and automatically update a fingerprint database with altered access points. Using subset sampling, the system detect the altered access points, filter them out by a received signal strength vector and find the location of a client. Given the received signal strength vectors received and the estimated location, the system can update a fingerprint database with the signal changes by applying a non-parametric Gaussian process regression method.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: August 13, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Shueng Han Gary Chan, Suining He
  • Patent number: 10365049
    Abstract: A passive thermal diode (10), comprising: a heat source (12); a heat sink (14); a thermal coupling element (16) removably coupled to the heat source (12) and the heat sink (14); a lever (18), the lever (18) connected to the thermal coupling element (16) via a pivot point (19); and at least one spring (20) connected to the lever (18), the spring (20) comprised of a shape memory alloy, wherein the lever (18) transmits a force to displace the thermal coupling element (16) when the force is produced by the spring (20) on the lever (18).
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: July 30, 2019
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Chi Yan Tso, Christopher Yu Hang Chao
  • Publication number: 20190198998
    Abstract: A three-broadside-mode patch antenna includes: a rotationally symmetric radiator; a patch, wherein the patch is separated from the rotationally symmetric radiator by a dielectric and configured to capacitively feed the rotationally symmetric radiator; and three antenna probes, connected to the patch, configured to provide three antenna ports corresponding to three respective broadside radiation polarizations.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 27, 2019
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Chi Yuk CHIU, Ross David MURCH
  • Publication number: 20190174749
    Abstract: Methods and formulations for antimicrobial and anti-biofouling coating comprising: a hollow round colloidal structure, comprising: an active polymer shell; and an active or inert core; wherein the active polymer shell comprises one and more polymers with antimicrobial and anti-biofouling activities selected from the group consisting of polyethylenimine (PEI), functionalized chitosan (CHI), polyquaternium, poly(diallyldimethylammonium chloride) (PDDA) and polyhexamethylene biguanide (PHMD); wherein the active or inert core contains one and more disinfectants, biocides, fragrances or inert solvent; and wherein the hollow round colloidal structure is stable for at least 3 months.
    Type: Application
    Filed: June 30, 2017
    Publication date: June 13, 2019
    Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: King Lun YEUNG, Hanrong ZHANG, Ying LI, Awais FARID
  • Publication number: 20190165376
    Abstract: A meta-solid-state battery includes a first layer disposed on a first current collector, a second layer disposed on a second current collector, and third layer disposed between the first layer and the second layer. The first layer and the second layer are the cathode and anode electrodes. The third layer includes a first meta-solid-state electrolyte material. Each of the cathode and anode electrodes contain: an active material in an amount ranging from approximately 70% to 99.98% by weight, a carbon additive in an amount ranging from approximately 0.010% to 20% by weight, and a second meta-solid-state electrolyte material in an amount ranging from approximately 0.010% to 10% by weight. The first and second meta-solid-state electrolyte material include a gel polymer.
    Type: Application
    Filed: May 3, 2016
    Publication date: May 30, 2019
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Matthew Ming-Fai Yuen, Francesco Ciucci, Stephen Chin-To Kwok, Kan Kan Yeung
  • Publication number: 20190165199
    Abstract: A UV radiation detector includes: a diode including a substrate having a first side and a second side, the first side and the second side being located on opposing faces of the substrate, an active layer including rocksalt phase crystalline structure CaS disposed on the first side of the substrate, an electrical contact disposed on the second side of the substrate, and a semi-transparent conducting layer disposed on the active layer; and a circuit connecting the semi-transparent conducting layer and the electrical contact. The UV radiation detector detects radiation having a wavelength between 200 and 280 nm.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Qinglin He, Ying Hoi Lai, Yi Liu, Iam Keong Sou
  • Patent number: 10301204
    Abstract: A method of removing organic carbon in biological wastewater treatment includes the steps of: (a) oxidizing organic carbon to carbon dioxide with elemental sulfur as an electron carrier, and reducing the elemental sulfur to sulfide; (b) oxidizing the sulfide to elemental sulfur by recycled nitrate through controlling one or more of a recycling ratio to maintain an oxidation reduction potential (ORP) within the range of ?360 mv to ?420 mv, using an auto ORP controller; (c) recycling the elemental sulfur formed during oxidation of the sulfide back to the oxidation of the organic carbon; and (d) oxidizing ammonium to nitrate then partially recycled back for sulfide oxidation.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: May 28, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Guanghao Chen, Feng Jiang, Ho Kwong Chui
  • Publication number: 20190142322
    Abstract: The present application provides a Capillary number-based method of isolating circulating rare cells from a blood sample from a subject using filtration parameters determined based on the measurement of hemorheological parameters of the sample. The present application also provides a method for determining filtration parameters in a microfluidic elasto-filtration process for isolating circulating rare cells from a blood sample from a subject. The present application further provides a device for isolating circulating rare cells from a blood sample from a subject and a non-transitory computer storage medium for performing methods described in the present application.
    Type: Application
    Filed: April 26, 2017
    Publication date: May 16, 2019
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Yi-Kuen Lee, Cong Zhao, Kashif Riaz
  • Patent number: 10281731
    Abstract: A 2D/3D switchable liquid crystal lens device includes: a polarization-dependent lens array, configured to provide a focusing effect for impinging light having a first plane of polarization of the impinging light and to provide no focusing effect for impinging light have a second plane of polarization orthogonal to the first plane of polarization; a switchable polarization rotating stage, comprising bi-stable liquid crystals, wherein the switchable polarization rotating stage is configured to output light having the first plane of polarization to the polarization-dependent lens array while the bi-stable liquid crystals are in a first state, and to output light having the second plane of polarization to the polarization-dependent lens array while the bi-stable liquid crystals are in a second state; and a driving system, configured to switch the bi-stable liquid crystals of the switchable polarization rotating stage between the first state and the second state.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: May 7, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE & TECHNOLOGY
    Inventors: Abhishek Kumar Srivastava, Vladimir Grigorievich Chigrinov, Hoi-Sing Kwok
  • Publication number: 20190129252
    Abstract: A photoaligned quantum rod enhancement film (QREF) includes: a substrate (802, 805); a photoalignment layer deposited on the substrate (802, 805); and a polymer layer deposited on the photoalignment layer, the polymer layer comprises a plurality of quantum rods, the plurality of quantum rods are configured to emit one or more wavelengths of light in response to pumping light, and are aligned to an alignment axis based on the photoalignment layer.
    Type: Application
    Filed: May 10, 2017
    Publication date: May 2, 2019
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Abhishek Kumar SRIVASTAVA, Wanlong ZHANG, Vladimir Grigorievich CHIGRINOV, Hoi Sing KWOK
  • Patent number: 10270436
    Abstract: Techniques are provided that pumping of deep traps in GaN electronic devices using photons from an on-chip photon source. In various embodiments, a method for optical pumping of deep traps in GaN HEMTs is provided using an on-chip integrated photon source that is configured to generate photons during operation of the HEMT. In an aspect, the on-chip photon source is a SoH-LED. In various additional embodiments, an integration scheme is provided that integrates the photon source into the drain electrode of a HEMT, thereby converting the conventional HEMT with an ohmic drain to a transistor with hybrid photonic-ohmic drain (POD), a POD transistor or PODFET for short.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: April 23, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jing Chen, Baikui Li, Xi Tang
  • Patent number: 10263190
    Abstract: An organic compound, a donor-acceptor conjugated polymer, a formulation and a thin film, wherein a solution of the donor-acceptor conjugated polymer exhibits a peak optical absorption spectrum red shift of at least 100 nm when the donor-acceptor conjugated polymer solution is cooled from 140° C. to room temperature.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: April 16, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: He Yan, Zhengke Li
  • Patent number: 10238762
    Abstract: A multi-walled titanium-based nanotube array containing metal or non-metal dopants is formed, in which the dopants are in the form of ions, compounds, clusters and particles located on at least one of a surface, inter-wall space and core of the nanotube. The structure can include multiple dopants, in the form of metal or non-metal ions, compounds, clusters or particles. The dopants can be located on one or more of on the surface of the nanotube, the inter-wall space (interlayer) of the nanotube and the core of the nanotube. The nanotubes may be formed by providing a titanium precursor, converting the titanium precursor into titanium-based layered materials to form titanium-based nanosheets, and transforming the titanium-based nanosheets to multi-walled titanium-based nanotubes.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: March 26, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: King Lun Yeung, Shammi Akter Ferdousi, Wei Han
  • Patent number: 10229630
    Abstract: A passive-matrix light-emitting diodes on silicon (LEDoS) micro-display is presented herein. The LEDoS micro-display comprises a passive-matrix micro-light-emitting diode (LED) array comprising passive-matrix micro-light-emitting diodes (LEDs), and a display driver configured to apply column signals to columns of LED pixels of the passive-matrix micro-LED array and scan signals to rows of the LED pixels, wherein the passive-matrix micro-LED array is flip-chip bonded to the display driver based on solder bumps located at peripheral areas of the passive-matrix micro-LED array.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: March 12, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Kei May Lau, Zhaojun Liu, Wing Cheung Chong, Wai Keung Cho, Chu Hong Wang
  • Patent number: 10223330
    Abstract: Group aware command based arrangement is provided. An alignment command can be received, an undirected graph comprising a group of graph nodes connected by graph edges can be constructed, wherein the group of graph nodes represent a group of selected display elements, and the undirected graph can be partitioned as a function of identifying a severable graph edge of the graph edges that connects a pair of graph nodes included in the group of graph nodes to form a first collection of graph nodes and a second collection of graph nodes.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: March 5, 2019
    Assignees: CITY UNIVERSITY OF HONG KONG, THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongbo Fu, Pengfei Xu, Chiew-Lan Tai
  • Patent number: 10190068
    Abstract: GER fluids are improved by the addition of a polar molecule additive. By addition of a polar molecule additive, yield stresses under electric field are improved by over 50% while the current density is reduced to less than a quarter of the original GER. The reversible response time still remains the same, and the sedimentation stability is greatly enhanced. The zero field viscosity of the modified GER fluid remains the same as that of the original GER fluid without the additive. The improved GER characteristics improve general functionality as an electrical-mechanical interface, attendant with applications to car clutches, fluid brakes, and vehicle shock absorbers.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: January 29, 2019
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ping Sheng, Maijia Liao, Weijia Wen, Ya Ying Hong
  • Publication number: 20180361727
    Abstract: Embodiments disclosed herein represent powder based additive manufacturing processes which provide a microstructure having improved mechanical properties. The methods may include the use of ultrasonic excitation in combination with the active control of a substrate's temperature to provide some level of control over the microstructure and hence the properties.
    Type: Application
    Filed: December 9, 2016
    Publication date: December 20, 2018
    Applicant: The Hong Kong University of Science and Technology
    Inventors: George Alexandru Tilita, Wenhao Chen, Chi Fong Kwan, Matthew Ming Fai Yuen
  • Patent number: 10155060
    Abstract: A gel composition for air freshening or disinfecting, comprising a silicon alkoxide or colloidal silica, a volatile or gaseous fragrance and/or disinfectant, water, an acid or base catalyst, a water-soluble solvent, and optionally other volatile components and additives, and a method for preparing the same. The gel can be transparent or colored, has a homogeneous texture and a soft to rigid structure, and contains volatile or gaseous components from 0 vol % to 85 vol % for scented materials (fragrance and oils) and/or 0-8000 ppm of disinfectant, which are released at a steady rate under ambient conditions, controlled by the shape and opening of the gel container. Botanicals or plastic decorations may be added into the gel to improve its aesthetic appeal. The preparation method is easier and requires less energy consumption and the gel is used as an air freshener or disinfectant.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 18, 2018
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: King Lun Yeung, Wei Han, Shengli Cao, Wai Kwong Ching
  • Patent number: 10158405
    Abstract: Interference alignment for a multiple-input multiple-output communications network with partial connectivity is provided. A method is provided that includes determining assignments for data streams transmitted in the multiple-input multiple-output communications network. The method also includes suppressing inter-cell interference and suppressing intra-cell interference. Also provided is inter-cell/intra-cell decomposition and exploitation of partial connectivity in a multiple-input multiple-output communications network. The multiple-input multiple-output communications network can comprise three or more cells.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: December 18, 2018
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Liangzhong Ruan, Vincent Kin Nang Lau, Xiongbin Rao