Assignee
Inventors
- Chiaki Saitoh (9 patents)
- Hideyo Kumazawa (3 patents)
- Kazuo Aisaka (22 patents)
- Toru Mizukami (10 patents)
- Katsuhiko Ando (33 patents)
- Keiko Ochiai (28 patents)
- Ryoichi Katsumata (36 patents)
US Patent 6485931 · Granted Nov 26, 2002