Patents by Inventor Hyeon Seok Han

Hyeon Seok Han 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).

  • WATER RESPONSIVE SOFT ACTUATOR AND DRIVING METHOD THEREOF
    Publication number: 20220315678
    Abstract: The invention relates to a water responsive soft actuator using water responsive hydrogel whose volume hardly changes, and a method for driving the soft actuator. The water responsive soft actuator according to the invention includes polyisopropylacrylamide, and the polyisopropylacrylamide has an N-isopropylacrylamide monomer and water in a weight ratio of 87:13 to 95:5, wherein the water responsive soft actuator is driven by water absorption of the polyisopropylacrylamide.
    Type: Application
    Filed: March 22, 2022
    Publication date: October 6, 2022
    Inventors: Dong Sung Kim, Hyeon Seok Han, Andrew Choi