Patents by Inventor Wonyong OHOI

Wonyong OHOI 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).

  • METHOD FOR MANUFACTURING PHOTOCATALYTIC FILTER FOR AIR PURIFICATION
    Publication number: 20210170061
    Abstract: Disclosed is a method for manufacturing a photocatalytic filter for air purification. The present manufacturing method comprises the steps of: oxidizing a titanium metal to obtain a nanostructured titanium dioxide (TiO2); adding the nanostructured titanium dioxide to an acidic fluorine-containing solution to allow a reaction to occur therebetween for a predetermined period of time; and, after treatment in the acidic fluorine-containing solution, performing heat treatment on the nanostructured titanium dioxide.
    Type: Application
    Filed: July 31, 2018
    Publication date: June 10, 2021
    Inventors: Jee-yeon KIM, Wonyong OHOI, Seunghyun WEON, Sae-mi KIM, Hee-jin PARK