Patents by Inventor Yongmok Song

Yongmok Song 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).

  • Fluidized bed reactor with microwave heating system for preparing high-purity polycrystalline silicon
    Patent number: 4786477
    Abstract: An apparatus for preparing high-purity polycrystalline silicon is constructed with a heating applicator, a vertical fluidized bed quartz reactor within the applicator, a microwave generator, microwave guide tubes for conveying microwaves from the microwave generator to the applicator, a reacting gas inlet and outlet, a gas distribution device for distributing reacting gas within the reactor, a silicon seed inlet for introducing silicon seed into the reactor, and an outlet for withdrawing polycrystalline silicon from the reactor. The microwaves provide the heat for the fluidized bed reaction.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: November 22, 1988
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Poong Yoon, Yongmok Song