Assignee
Inventors
- Takeshi Nakamura (21 patents)
- Tadashi Suzuki (5 patents)
- Junko Tokuda (8 patents)
- Nobuo Kato (69 patents)
- Yasuyoshi Sakai (14 patents)
- Daisuke Mochizuki (24 patents)
- Hitoshi Takahashi (133 patents)
US Patent 6140077 · Granted Oct 31, 2000