Assignee
Inventors
- Yong-Ki Son (27 patents)
- Pyong-yong Seong (64 patents)
- Byung-ryul Ryoo (15 patents)
- Seok-jung Kim (50 patents)
- Joong-eon Seo (37 patents)
- In Wook HWANG (9 patents)
- Young-sun Seo (31 patents)
US Patent 6282161 · Granted Aug 28, 2001