Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10287706 | Heating unit comprised of ring heaters with ring support units disposed between the ring heaters and ingot growing device including the same | Il Sun Pang, Kwang Hun Kim | 2019-05-14 |
| 6063454 | Impedance matching device for SiO.sub.2 coating device and a method of impedance-matching using the same | Sa-hyuk Kim, Kwang-sung Woo | 2000-05-16 |