Assignee
Inventors
- Hidenobu Kato (22 patents)
- Keiichi Nakayama (8 patents)
- Seiichi Yamaguchi (13 patents)
- Takashi Enoki (28 patents)
- Manabu Yamaguchi (22 patents)
- Kaoru Ishida (86 patents)
- Hiroaki Kosugi (57 patents)
US Patent 6006080 · Granted Dec 21, 1999