Assignee
Inventors
- Shunji Watanabe (56 patents)
- Hideharu Onodera (20 patents)
- Tsugio Sakai (23 patents)
- Toyoo Harada (11 patents)
- Yoshimi Kanno (11 patents)
- Shinichi Takasugi (8 patents)
- Tsuneaki Tamachi (30 patents)
US Patent 6459564 · Granted Oct 1, 2002