Assignee
Inventors
- Masao Imai (116 patents)
- Kenichi Sugimoto (81 patents)
- Kenichi Fujii (165 patents)
- Atsuo Otsuji (38 patents)
- Tadashi Ohkuma (2 patents)
- Masatoshi Takagi (46 patents)
- Rihoko Suzuki (5 patents)
- Keisuke Takuma (49 patents)
US Patent 6458908 · Granted Oct 1, 2002