Assignee
Inventors
- Ja-ok Koo (6 patents)
- Eun-Bi Kim (18 patents)
- Soo Yeun Yang (2 patents)
- Jung Yeob Oh (27 patents)
- Keum-koo Lee (44 patents)
- Soo Jung Lee (83 patents)
- Soon Kyu Jang (12 patents)
- Sun-Mi Jin (34 patents)
US Patent 10812418 · Granted Oct 20, 2020