Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12102442 | Device for measuring amount of perspiration with regard to each part of human body by using change in brightness and method for measuring amount of perspiration | Yong-Hak Choi, Eun Kyung Lee, Gang Ho Goh, Seung Hee CHOI, Ro Bin Yim | 2024-10-01 |
| 7209731 | Method of membership protection using mobile communication device | Yong-Hak Choi, Jong Sung Park | 2007-04-24 |