Patents by Inventor Wangsong He

Wangsong He 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).

  • High T.sub.c superconductor magnetic shields and method of making same
    Patent number: 5747425
    Abstract: High T.sub.c superconducting magnetic shields are provided, together with a method of fabricating such shields, wherein the shields exhibit very high critical applied magnetic field values of at least about 50 Gauss at 77 K. In fabrication procedures, a particulate superconducting ceramic oxide (24) (e.g., thallium 2223) is placed within an uniaxial die assembly (10) and subjected to compression while the die is heated via an external heating jacket (26). After formation of a self-sustaining body (24a), the die (10) is additionally heated via the jacket (26). External heating of the die (10) with the superconducting material therein reduces internal stresses within the shield body.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: May 5, 1998
    Assignee: Midwest Superconductivity Inc.
    Inventors: Ying Xin, Wangsong He, Michael S. P. Lucas, Xin Fei, Yi-Han Kao