Patents by Inventor MINGKUI Zhang

MINGKUI 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).

  • Publication number: 20220348420
    Abstract: A method for preparation of a magnetic liquid metal includes: 1) placing A parts by weight of a liquid metal in a container; 2) placing B parts by weight of a metal powder in the container; 3) adding an acidic solution into the container until the liquid metal and the metal powder are submerged; 4) stirring until the liquid metal and the metal powder are sufficiently mixed; and 5) adding water for cleaning the acidic solution, and to obtain the magnetic liquid metal by removing the acidic solution. The viscosity and stiffness of the prepared magnetic liquid metal can quickly respond to the stimulus from an applied magnetic field, and a reversible change from liquid to semisolid or solid exists. With a change in magnetic field strengths, the Young's modulus can be regulated in a range from the level of kPa to the level of MPa.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 3, 2022
    Inventors: Xiangpeng LI, Jiangxia ZHOU, Kaiwei WANG, Mingkui ZHANG, Yue CHEN, Lining SUN
  • Patent number: 11422076
    Abstract: A K-nearest neighbour rock burst prediction method and device based on big data visualization analysis are provided. The method includes the following steps: S1, obtaining spectrum characteristics and amplitude/energy characteristics of rocks according to rock data; and S2, accurately predicting rock burst by a K-nearest neighbour algorithm according to the spectrum characteristics and the amplitude/energy characteristics. By adopting the technical scheme, the rock burst can be accurately predicted to avoid huge economic and casualties.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: August 23, 2022
    Assignee: BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
    Inventors: Yu Zhang, Mingkui Zhang, Dongqiao Liu, Maozu Guo, Jitao Li, Zhaoyong Lv, Yilin Su, Kailong Gao, Kaifeng Liu
  • Publication number: 20110296634
    Abstract: A wafer side edge cleaning apparatus includes: a cleaning device including a fixing element and a wafer brush disposed beneath the fixing element. The wafer brush is in the shape of a frustum. The frustum has a tapered surface contacting with a side edge of a wafer. The top surface of the frustum is larger than the bottom surface of the frustum. When cleaning the side edge of the wafer, the wafer and the wafer brush are rotated in different directions and a cleaning solution flows out from the fixing element rinses and washes the side edge brush.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 8, 2011
    Inventors: JINGDONG JIA, CHEE MONG LOO, MINGKUI Zhang, Yao-Hung Liu