Patents by Inventor Youjie Hua

Youjie Hua 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).

  • Molding device and molding method for optical fiber preform
    Patent number: 11970420
    Abstract: A molding device and a molding method for an optical fiber preform are provided. The molding device includes a rotating mechanism, an extrusion mechanism, and a cylinder mold that is of a cylindrical structure with two ends each having an opening. After a hollow cladding sleeve is obtained by rotating the cylinder mold through the rotating mechanism, a molten core glass is then reversely extruded into the cladding sleeve in the cylinder mold from bottom to top by the extrusion mechanism to prepare the optical fiber preform.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: April 30, 2024
    Assignee: CHINA JILIANG UNIVERSITY
    Inventors: Shiqing Xu, Youjie Hua, Bingpeng Li, Ying Tian, Feifei Huang, Junjie Zhang, Muzhi Cai, Renguang Ye
  • Laser glass doped with high concentration of mid-infrared fluoroindate and preparation method thereof
    Patent number: 11939261
    Abstract: A laser glass doped with high concentration of mid-infrared fluoroindate and a preparation method thereof are provided in the present application, belonging to the technical field of luminescent glass. The laser glass doped with high concentration of mid-infrared fluoroindate includes the raw materials in parts by mole percentage: 27-38 parts of InF3, 13 parts of ZnF2, 10 parts of GdF3, 19 parts of BaF2, 5 parts of CaF2, 10 parts of SrF2, 5-15 parts of Al(PO3)3 and 1-11 parts of ErF3.
    Type: Grant
    Filed: October 13, 2023
    Date of Patent: March 26, 2024
    Assignee: CHINA JILIANG UNIVERSITY
    Inventors: Feifei Huang, Shiqing Xu, Junjie Zhang, Ying Tian, Bingpeng Li, Youjie Hua
  • MOLDING DEVICE AND MOLDING METHOD FOR OPTICAL FIBER PREFORM
    Publication number: 20230312391
    Abstract: A molding device and a molding method for an optical fiber preform are provided. The molding device includes a rotating mechanism, an extrusion mechanism, and a cylinder mold that is of a cylindrical structure with two ends each having an opening. After a hollow cladding sleeve is obtained by rotating the cylinder mold through the rotating mechanism, a molten core glass is then reversely extruded into the cladding sleeve in the cylinder mold from bottom to top by the extrusion mechanism to prepare the optical fiber preform.
    Type: Application
    Filed: June 13, 2022
    Publication date: October 5, 2023
    Inventors: Shiqing Xu, Youjie Hua, Bingpeng Li, Ying Tian, Feifei Huang, Junjie Zhang, Muzhi Cai, Renguang Ye