Patents by Inventor Chee-Young JOH

Chee-Young JOH 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).

  • Funnel-shaped underwater energy harvesting equipment
    Patent number: 11637510
    Abstract: A funnel-shaped underwater energy harvesting equipment includes a piezoelectric element configured to be installed at a seabed and to be moved by a fluid in order to convert vibration energy into electricity. The funnel-shaped underwater energy harvesting equipment further includes a fluid collector coupled to the piezoelectric element and configured to increase velocity of the fluid flowing toward the piezoelectric element. The harvesting equipment exhibits improved energy conversion efficiency, while simplifying the shape of the harvesting equipment.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: April 25, 2023
    Assignees: Agency for Defense Development, Andong National University Industry-Academic Cooperation Foundation
    Inventors: Chee-Young Joh, Hee-Seon Seo, Jong-Kil Lee, Hyun-Du Jin, Jin-Hyo Ahn
  • FUNNEL-SHAPED UNDERWATER ENERGY HARVESTING EQUIPMENT
    Publication number: 20200313575
    Abstract: A funnel-shaped underwater energy harvesting equipment includes a piezoelectric element configured to be installed at a seabed and to be moved by a fluid in order to convert vibration energy into electricity. The funnel-shaped underwater energy harvesting equipment further includes a fluid collector coupled to the piezoelectric element and configured to increase velocity of the fluid flowing toward the piezoelectric element. The harvesting equipment exhibits improved energy conversion efficiency, while simplifying the shape of the harvesting equipment.
    Type: Application
    Filed: February 13, 2020
    Publication date: October 1, 2020
    Inventors: Chee-Young JOH, Hee-Seon SEO, Jong-Kil LEE, Hyun-Du JIN, Jin-Hyo AHN