Patents by Inventor Yunfei Xi

Yunfei Xi 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).

  • Publication number: 20240165616
    Abstract: Provided is a microfluidic chip. The microfluidic chip includes a first substrate and a second substrate disposed opposite to each other and drive electrodes, first sensing electrodes and second sensing electrodes disposed on a side of the first substrate. A microfluidic channel is formed between the first substrate and the second substrate and configured to accommodate at least one droplet. Different drive voltage signals are applied to adjacent drive electrodes, so as to drive the at least one droplet to move. Detection signals are applied to the first sensing electrodes and the second sensing electrodes, and a position of the at least one droplet is determined according to a change in capacitance between one first sensing electrode and an electrode corresponding thereto and a change in capacitance between one second sensing electrode and an electrode corresponding thereto when the at least one droplet flows by.
    Type: Application
    Filed: June 30, 2021
    Publication date: May 23, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Baiquan LIN, Kerui XI, Yunfei BAI, Wei LI, Dengming LEI, Zhen LIU, Zhenyu JIA, Junting OUYANG
  • Publication number: 20240157360
    Abstract: Microfluidic substrate, microfluidic device, and driving method thereof are provided. The microfluidic substrate includes a plurality of detection units arranged in an array. A detection unit of the plurality of detection units at least includes a first switch transistor, a second switch transistor, a drive electrode, and a photosensitive element. The microfluid substrate includes a base; a transistor array layer on a side of the base, first switch transistors and second switch transistors being on the transistor array layer; a photosensitive element array layer on a side of the transistor array layer away from the substrate, photosensitive elements being on the photosensitive element array layer; a first electrode layer on a side of the photosensitive element array layer away from the base; and a second electrode layer on a side of the first electrode layer away from the base.
    Type: Application
    Filed: March 21, 2023
    Publication date: May 16, 2024
    Inventors: Kaidi ZHANG, Baiquan LIN, Wei LI, Yunfei BAI, Linzhi WANG, Yukun HUANG, Kerui XI
  • Publication number: 20240091766
    Abstract: Provided is a microfluidic device. The microfluidic device includes a first substrate and a second substrate disposed opposite to each other. A cavity is formed between the first substrate and the second substrate and configured to accommodate liquid. The first substrate includes multiple drive electrodes and multiple first electrodes, and the drive electrodes are disposed on a side of the first electrodes facing the second substrate. At least one of the drive electrodes includes at least one opening, and the at least one opening, along a direction perpendicular to a plane where the first substrate is located, penetrates the drive electrode where the at least one opening is located. An orthographic projection of at least one first electrode on the plane where the first substrate is located covers at least an orthographic projection of one opening on the plane where the first substrate is located.
    Type: Application
    Filed: December 20, 2021
    Publication date: March 21, 2024
    Inventors: Kaidi ZHANG, Baiquan LIN, Kerui XI, Wei LI, Yunfei BAI, Ping SU
  • Publication number: 20240071325
    Abstract: Provided a microfluidic pixel driving circuit includes n boost modules, where each boost module includes a capacitor and a write unit, and n is a positive integer greater than or equal to 2; a first terminal of a first capacitor is electrically connected to a fixed potential line, a second terminal of the first capacitor is electrically connected to a pixel electrode, and the first capacitor is used for storing a voltage of the pixel electrode; a first write unit is configured to write a first data signal to the pixel electrode according to an enable level of a first scan signal; a first terminal of a second capacitor is electrically connected to the pixel electrode; and a second write unit is configured to write a second data signal to a second terminal of the second capacitor according to an enable level of a second scan signal.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicant: Shanghai Tianma Microelectronics Co., Ltd.
    Inventors: Kaidi Zhang, Baiquan Lin, Yunfei Bai, Wei Li, Kerui Xi
  • Patent number: 9199184
    Abstract: The present invention relates to modified clay sorbents which may be used as sorbents for chemical compounds. In addition, the present invention also relates to the use of modified clay sorbents for the sorption of chemical compounds. The modified clay sorbents of the present invention have particular application for the sorption of anionic and/or hydrophobic compounds.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 1, 2015
    Assignee: CRC CARE Pty Ltd
    Inventors: Megharaj Mallavarapu, Ravendra Naidu, Yunfei Xi, Binoy Sarkar
  • Publication number: 20120145639
    Abstract: The present invention relates to modified clay sorbents which may be used as sorbents for chemical compounds. In addition, the present invention also relates to the use of modified clay sorbents for the sorption of chemical compounds. The modified clay sorbents of the present invention have particular application for the sorption of anionic and/or hydrophobic compounds.
    Type: Application
    Filed: June 9, 2011
    Publication date: June 14, 2012
    Inventors: Megharaj Mallavarapu, Ravendra Naidu, Yunfei Xi, Binoy Sarkar