Patents by Inventor Zhaohui Han

Zhaohui Han 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: 11602725
    Abstract: A device for rapidly preparing ?-Si3N4 by gas-solid reaction and a method thereof, and relates to the technical field of recycling and reuse of waste fine silicon powder. The bottom of a stock bin communicates with a first opening and closing passage, a first connection passage, and the top of a first transitional bin; the bottom of the first transitional bin communicates with the first opening and closing passage, a second connection passage, and the top of a reaction bin; the bottom of the reaction bin communicates with a second opening and closing passage, the first connection passage, and the top of a second transitional bin; the bottom of the second transitional bin communicates with the top of a conveying passage through the first opening and closing passage; a material outlet of the conveying bin communicates with the collection bin.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: March 14, 2023
    Assignee: Kunming University of Science and Technology
    Inventors: Lei Xu, Libo Zhang, Hang Li, Zhaohui Han, Jianhua Liu, Hongying Xia, Zhimeng Tang, Lirong Guo
  • Patent number: 11571676
    Abstract: The present disclosure provides an opening-closing type microwave catalytic reaction apparatus, including a microwave system, a microwave cavity, a protective cover, a cooling system, and a vertical furnace tube, where two ends of the furnace tube are respectively stretched out of the microwave cavity, the microwave system includes a plurality of microwave transmitting units, and the microwave transmitting unit includes a microwave transmitter; the furnace tube is provided with a gas inlet on a top and a gas outlet on a bottom; a compression hinge and a cavity cover capable of being opened or closed are arranged on the microwave cavity, a convex edge plate is disposed at an edge of the cavity cover, the compression hinge can compress the cavity cover such that the convex edge plate is tightly attached to a concave edge plate on the microwave cavity, and the protective cover can cover the entire cavity cover.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: February 7, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Lei Xu, Libo Zhang, Hang Li, Zhaohui Han, Jianhua Liu, Junwen Zhou, Hongying Xia, Xiangxian Liu, Yi Xia, Xinpei Li
  • Publication number: 20220314190
    Abstract: The present disclosure provides an opening-closing type microwave catalytic reaction apparatus, including a microwave system, a microwave cavity, a protective cover, a cooling system, and a vertical furnace tube, where two ends of the furnace tube are respectively stretched out of the microwave cavity, the microwave system includes a plurality of microwave transmitting units, and the microwave transmitting unit includes a microwave transmitter; the furnace tube is provided with a gas inlet on a top and a gas outlet on a bottom; a compression hinge and a cavity cover capable of being opened or closed are arranged on the microwave cavity, a convex edge plate is disposed at an edge of the cavity cover, the compression hinge can compress the cavity cover such that the convex edge plate is tightly attached to a concave edge plate on the microwave cavity, and the protective cover can cover the entire cavity cover.
    Type: Application
    Filed: October 1, 2021
    Publication date: October 6, 2022
    Inventors: Lei XU, Libo ZHANG, Hang LI, Zhaohui HAN, Jianhua LIU, Junwen ZHOU, Hongying XIA, Xiangxian LIU, Yi XIA, Xinpei LI
  • Patent number: 11445580
    Abstract: The present invention provides a microwave-based high-throughput material processing device with a concentric rotary chassis. The device includes a microwave source generator, a microwave reaction chamber, and a temperature acquisition device. The microwave reaction chamber is provided with a rotary table, a thermal insulation barrel and a crucible die. The thermal insulation barrel is disposed on the rotary table, and the crucible die is disposed in the thermal insulation barrel. The crucible die is provided with a plurality of first grooves, and the first grooves are evenly distributed on a first circumference. A plurality of first fixing holes are disposed on a top of the thermal insulation barrel, and the first fixing holes are disposed corresponding to the first grooves. A first acquisition hole is disposed on the top of the microwave reaction chamber, and the first acquisition hole is located right above the first circumference.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 13, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Lei Xu, Jinhui Peng, Shenghui Guo, Libo Zhang, Zhaohui Han, Yi Xia, Shaohua Ju, Shanju Zheng, Shiwei Li, Zemin Wang, Zhang Xu
  • Publication number: 20220280907
    Abstract: A device for rapidly preparing ?-Si3N4 by gas-solid reaction and a method thereof, and relates to the technical field of recycling and reuse of waste fine silicon powder. The bottom of a stock bin communicates with a first opening and closing passage, a first connection passage, and the top of a first transitional bin; the bottom of the first transitional bin communicates with the first opening and closing passage, a second connection passage, and the top of a reaction bin; the bottom of the reaction bin communicates with a second opening and closing passage, the first connection passage, and the top of a second transitional bin; the bottom of the second transitional bin communicates with the top of a conveying passage through the first opening and closing passage; a material outlet of the conveying bin communicates with the collection bin.
    Type: Application
    Filed: December 1, 2021
    Publication date: September 8, 2022
    Inventors: Lei Xu, Libo Zhang, Hang Li, Zhaohui Han, Jianhua Liu, Hongying Xia, Zhimeng Tang, Lirong Guo
  • Publication number: 20200323051
    Abstract: The present invention provides a microwave-based high-throughput material processing device with a concentric rotary chassis. The device includes a microwave source generator, a microwave reaction chamber, and a temperature acquisition device. The microwave reaction chamber is provided with a rotary table, a thermal insulation barrel and a crucible die. The thermal insulation barrel is disposed on the rotary table, and the crucible die is disposed in the thermal insulation barrel. The crucible die is provided with a plurality of first grooves, and the first grooves are evenly distributed on a first circumference. A plurality of first fixing holes are disposed on a top of the thermal insulation barrel, and the first fixing holes are disposed corresponding to the first grooves. A first acquisition hole is disposed on the top of the microwave reaction chamber, and the first acquisition hole is located right above the first circumference.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Applicant: Kunming University of Science and Technology
    Inventors: Lei Xu, Jinhui Peng, Shenghui Guo, Libo Zhang, Zhaohui Han, Yi Xia, Shaohua Ju, Shanju Zheng, Shiwei Li, Zemin Wang, Zhang Xu
  • Patent number: 8568855
    Abstract: An improved electrical insulation tape (16) comprising a backing layer (20) and an electrical insulation layer (18) bonded to the backing layer (20) is provided. At least one of the electrical insulation layer (18) and the backing layer (20) includes a plurality of apertures (26) formed therein to improve flow of impregnating resin into the insulation tape (16) during resin impregnation.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: October 29, 2013
    Assignee: Siemens Energy, Inc.
    Inventors: David S. Segletes, Zhaohui Han
  • Publication number: 20120315435
    Abstract: An improved electrical insulation tape (16) comprising a backing layer (20) and an electrical insulation layer (18) bonded to the backing layer (20) is provided. At least one of the electrical insulation layer (18) and the backing layer (20) includes a plurality of apertures (26) formed therein to improve flow of impregnating resin into the insulation tape (16) during resin impregnation.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 13, 2012
    Inventors: David S. Segletes, Zhaohui Han
  • Publication number: 20120009409
    Abstract: A method is provided for applying a layer (112) of material to a surface of a non-metallic substrate (116) to enhance a performance characteristic. The method includes applying glass backing (114) to the non-metallic substrate (116) and cold spraying mica or boron nitride (BN) particles (128) onto a surface of the glass backing (114). A conductive tape is also provided, which is formed with the method. The conductive tape includes a first layer of an insulation material (114?), where the first layer is formed from a backing including a fiber-based or polymer backing with resilient and flexible properties for storage in a rolled form and a layer of mica particles or boron nitride particles. The conductive tape further includes a second layer (142?) positioned over the layer of particles, and formed from an electrical conductor material.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 12, 2012
    Inventors: William F. Jones, Zhaohui Han, Randall S. Garrett
  • Publication number: 20120009336
    Abstract: A method is provided for applying a layer (12) of electrical insulation material to a surface (14) of a conductor (16). One embodiment of the method involves preparing the surface (14) of the conductor (16), followed by cold spraying a plurality of mica particles (28) onto the surface (14) of the conductor (16). Another embodiment of the method involves preparing the surface (14) of the conductor (16), followed by cold spraying a plurality of boron nitride (BN) particles onto the surface (14) of the conductor (16).
    Type: Application
    Filed: July 8, 2010
    Publication date: January 12, 2012
    Inventors: William F. Jones, Zhaohui Han, Randall S. Garrett