Patents by Inventor Junwu Zhao

Junwu Zhao 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).

  • Dredging device
    Patent number: 11851269
    Abstract: A dredging device for dredging a pipe is provided including: a carrying frame, adapted to connected to a pipe; a shaking dredging unit including a first shaking plate and a second shaking plate, and the first shaking plate and the second shaking plate are arranged within the pipe; and a driving unit, connected to the carrying frame. The driving unit is connected to the first shaking plate and the second shaking plate for driving the first shaking plate and the second shaking plate to reciprocate to approach or move away from each other.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: December 26, 2023
    Assignee: SUZHOU TPRI ENER & ENVIRO TECH CO., LTD.
    Inventors: Min Chen, Xiaohua Wang, Baokang Chen, Junwu Zhao, Zhenfeng Mei, Xiaolei Xue, Xiaomin Peng, Shengjie Yu, Ruipeng Liu, Peng Zhao, Yiwen Ding, Jinyong Zhu, Sheng Yao, Zhucheng Wang, Hao Liang, Hui Wang
  • DREDGING DEVICE
    Publication number: 20230142514
    Abstract: A dredging device for dredging a pipe is provided including: a carrying frame, adapted to connected to a pipe; a shaking dredging unit including a first shaking plate and a second shaking plate, and the first shaking plate and the second shaking plate are arranged within the pipe; and a driving unit, connected to the carrying frame. The driving unit is connected to the first shaking plate and the second shaking plate for driving the first shaking plate and the second shaking plate to reciprocate to approach or move away from each other.
    Type: Application
    Filed: December 30, 2022
    Publication date: May 11, 2023
    Inventors: Min CHEN, Xiaohua WANG, Baokang CHEN, Junwu ZHAO, Zhenfeng MEI, Xiaolei XUE, Xiaomin PENG, Shengjie YU, Ruipeng LIU, Peng ZHAO, Yiwen DING, Jinyong ZHU, Sheng YAO, Zhucheng WANG, Hao LIANG, Hui WANG
  • Bulk acoustic wave resonator and bulk acoustic wave filter
    Publication number: 20230102044
    Abstract: This present disclosure provides a bulk acoustic wave resonator and a bulk acoustic wave filter, and relates to the technical field of filters. A substrate and a piezoelectric stack structure arranged on the substrate are included. The piezoelectric stack structure includes a bottom electrode, a piezoelectric material layer and a top electrode which are sequentially stacked, and an outline of an orthographic projection of the top electrode on the substrate includes at least one Bezier curve of order greater than or equal to 2.
    Type: Application
    Filed: September 21, 2022
    Publication date: March 30, 2023
    Inventors: Bowoon SOON, Yao CAI, Jian WANG, Kunli ZHAO, Junwu ZHAO, Yaping ZHOU, Chao GAO, Chengliang SUN
  • Film bulk acoustic resonator
    Patent number: 11539340
    Abstract: The invention provides a film bulk acoustic resonator including a layered structure composed of a top electrode, a piezoelectric layer and a bottom electrode, and a substrate; a reflective interface is arranged between the bottom electrode and the substrate; and by defining the shape of all or part of the layered structure, the purpose of suppressing the lateral mode can be achieved, and without adding new process, the manufacturing cost of the device can be controlled, and the benefit of product development can be maximized.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: December 27, 2022
    Assignee: WUHAN YANXI MICRO COMPONENTS CO., LTD.
    Inventors: Pei-Chun Liao, Re-Ching Lin, Junwu Zhao
  • FILM BULK ACOUSTIC RESONATOR
    Publication number: 20190372548
    Abstract: The invention provides a film bulk acoustic resonator including a layered structure composed of a top electrode, a piezoelectric layer and a bottom electrode, and a substrate; a reflective interface is arranged between the bottom electrode and the substrate; and by defining the shape of all or part of the layered structure, the purpose of suppressing the lateral mode can be achieved, and without adding new process, the manufacturing cost of the device can be controlled, and the benefit of product development can be maximized.
    Type: Application
    Filed: August 20, 2019
    Publication date: December 5, 2019
    Inventors: Pei-Chun Liao, Re-Ching Lin, Junwu Zhao