Assignee
Inventors
- Naruhiko Mashita (28 patents)
- Shinichi Toyosawa (28 patents)
- Youichi Nishimuro (15 patents)
- Yasushi Imai (16 patents)
- Tadashi Utsunomiya (12 patents)
- Ichiro Akasaka (1 patents)
- Youkou Saito (4 patents)
US Patent 6824730 · Granted Nov 30, 2004