Patents by Inventor Yunfang Zhang

Yunfang Zhang 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).

  • HYBRID FIBER COUPLER AND MANUFACTURING METHOD THEREOF
    Publication number: 20210208350
    Abstract: The present application is applicable to the fiber optics field and provides a hybrid fiber coupler including a lead-in single mode fiber, a coreless fiber, a hollow glass tube and a lead-out single mode fiber fusion-spliced sequentially. Both the lead-in single mode fiber and the lead-out single mode fiber include cores and claddings. Cores of the lead-in single mode fiber and the lead-out single mode fiber are not in the same horizontal direction. A curved waveguide is inscribed inside the coreless fiber and the hollow glass tube and cores of the lead-in single mode fiber and the lead-out single mode fiber are connected with said curved waveguide. The hollow glass tube has a micro-channel at either end thereof, and the two micro-channels form a microfluidic channel with the center of the hollow glass tube for allowing the analytical liquid to access the hollow glass tube.
    Type: Application
    Filed: October 31, 2017
    Publication date: July 8, 2021
    Inventors: Changrui LIAO, Yiping WANG, Chupao LIN, Yunfang ZHANG
  • Hybrid fiber coupler and manufacturing method thereof
    Patent number: 11054577
    Abstract: The present application is applicable to the fiber optics field and provides a hybrid fiber coupler including a lead-in single mode fiber, a coreless fiber, a hollow glass tube and a lead-out single mode fiber fusion-spliced sequentially. Both the lead-in single mode fiber and the lead-out single mode fiber include cores and claddings. Cores of the lead-in single mode fiber and the lead-out single mode fiber are not in the same horizontal direction. A curved waveguide is inscribed inside the coreless fiber and the hollow glass tube and cores of the lead-in single mode fiber and the lead-out single mode fiber are connected with said curved waveguide. The hollow glass tube has a micro-channel at either end thereof, and the two micro-channels form a microfluidic channel with the center of the hollow glass tube for allowing the analytical liquid to access the hollow glass tube.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: July 6, 2021
    Assignee: SHENZHEN UNIVERSITY
    Inventors: Changrui Liao, Yiping Wang, Chupao Lin, Yunfang Zhang
  • Hair drying and volumizing brush
    Patent number: D921291
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: June 1, 2021
    Inventor: Yunfang Zhang