Patents by Inventor Beoung Doo Yoo

Beoung Doo Yoo 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).

  • Sintered BI2TE3-based thermoelectric materials preventing P- to N-type transition
    Patent number: 5487952
    Abstract: There are sintered Bi.sub.2 Te.sub.3 -based thermoelectric materials containing Ag.sub.2 S, which prevent p- to n-type transition of Bi.sub.2 Te.sub.3 -based thermoelectric materials during polycrystalline sintering and have improved thermoelectric properties.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: January 30, 1996
    Inventors: Han-Ill Yoo, Tae Ho Park, Dae Suk Kang, Beoung Doo Yoo