Assignee
Inventors
- Hui-Jun Won (6 patents)
- Byung-Gil Ahn (4 patents)
- Gye Nam Kim (3 patents)
- Hoy-Sam Kwon (1 patents)
- Chul-Yong Lee (2 patents)
- Chong-Hun Jung (6 patents)
- Byung Lee (1 patents)
- Won-Zin Oh (4 patents)
US Patent 6214189 · Granted Apr 10, 2001