Assignee
Inventors
- Isamu Fujii (18 patents)
- Kiyoshi Nakai (43 patents)
- Yukihide Suzuki (27 patents)
- Sadayuki Morita (21 patents)
- Hidekazu Egawa (8 patents)
- Katura Abe (2 patents)
- Noriaki Sakamoto (113 patents)
US Patent 6707139 · Granted Mar 16, 2004