Assignee
Inventors
- Nobuyuki Muramatsu (5 patents)
- Yasuhito Tsutsumi (4 patents)
- Tatsuo Kobayashi (55 patents)
- Toyokazu Baika (34 patents)
- Souichi Matusita (4 patents)
- Shizuo Abe (21 patents)
- Takashi Hashima (11 patents)
- Koukichi Fujimori (1 patents)
US Patent 6460509 · Granted Oct 8, 2002