Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11318789 | Ultrasonic welding type wheel resonator | Joong-Wook Lee, Jong-Wook Lee, Tae Soo Chi, Eun Sang Ryu, Nam Young Kim +4 more | 2022-05-03 |
| 11130366 | Resonator wheel | Hyeon-Chang Seung, Suk Choo Rhee, Young Sik Kim, Kyoung-Duck Shin, Keon-Ki Han | 2021-09-28 |
| 10807159 | Vertical centrifugal casting device | Hyeon-Chang Seung, Young Sik Kim, Kyoung-Duck Shin, Keon-Ki Han | 2020-10-20 |