Patents by Inventor Bufa Zhang

Bufa 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).

  • Testing method for sheet resistance of sheet material
    Patent number: 10495593
    Abstract: A testing method for the sheet resistance of a sheet material, comprising: mounting two circular or annular electrodes on the surface of the sheet material; measuring the resistance between the electrodes; and calculating the sheet resistance of the sheet material on the basis of a theoretical model from the resistance measured between the electrodes, the diameters of the electrodes, and the distance between the electrodes. The method places no restriction on the diameters of the electrodes; also, the annular electrodes work as effectively as circular electrodes, and annular electrodes may improve the contact between the edges of the electrodes, and the sheet material.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: December 3, 2019
    Assignee: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Bufa Zhang, Lixin Song
  • Testing method for sheet resistance and contact resistance of connecting point of sheet material
    Patent number: 10495678
    Abstract: A testing method for the sheet resistance and contact resistance of connecting point of a sheet material, comprising: mounting at least four small electrodes on the surface of the sheet material; measuring the resistance between the electrodes; and calculating the sheet resistance and electrode contact resistance of the sheet material on the basis of a theoretical model from the resistance measured between the electrodes and the distances between the electrodes. As a main feature, the testing method is a convenient nondestructive testing method for the sheet resistance and electrode contact resistance of the sheet material, and has no strict requirement on the distribution of electrodes.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: December 3, 2019
    Assignee: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Bufa Zhang, Lixin Song
  • TESTING METHOD FOR SHEET RESISTANCE OF SHEET MATERIAL
    Publication number: 20180284046
    Abstract: A testing method for the sheet resistance of a sheet material, comprising: mounting two circular or annular electrodes on the surface of the sheet material; measuring the resistance between the electrodes; and calculating the sheet resistance of the sheet material on the basis of a theoretical model from the resistance measured between the electrodes, the diameters of the electrodes, and the distance between the electrodes. The method places no restriction on the diameters of the electrodes; also, the annular electrodes, work as effectively as circular electrodes, and annular electrodes may improve the contact between the edges of the electrodes, and the sheet material.
    Type: Application
    Filed: September 28, 2016
    Publication date: October 4, 2018
    Inventors: Bufa Zhang, Lixin Song
  • TESTING METHOD FOR SHEET RESISTANCE AND CONTACT RESISTANCE OF CONNECTING POINT OF SHEET MATERIAL
    Publication number: 20180275178
    Abstract: A testing method for the sheet resistance and contact resistance of connecting point of a sheet material, comprising: mounting at least four small electrodes on the surface of the sheet material; measuring the resistance between the electrodes; and calculating the sheet resistance and electrode contact resistance of the sheet material on the basis of a theoretical model from the resistance measured between the electrodes and the distances between the electrodes. As a main feature, the testing method is a convenient nondestructive testing method for the sheet resistance and electrode contact resistance of the sheet material, and has no strict requirement on the distribution of electrodes.
    Type: Application
    Filed: September 28, 2016
    Publication date: September 27, 2018
    Applicant: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Bufa Zhang, Lixin Song