Assignee
Inventors
- Oh Seok Kim (5 patents)
- Byung-Duck Cho (17 patents)
- Young-Ky Kim (73 patents)
- Yong-duk Cho (16 patents)
- Jae-Hawk Lee (4 patents)
- Young-yong Lee (7 patents)
- Jong Han Kim (127 patents)
- Seung Wan Chae (16 patents)
US Patent 8867438 · Granted Oct 21, 2014