Assignee
Inventors
- Tadasu Maeda (5 patents)
- Koji Ota (35 patents)
- Masaki Arao (2 patents)
- Taiji Sogou (1 patents)
- Hiroshi Nakajima (172 patents)
- Norichika Miyamoto (2 patents)
- Susumu Ishiguro (4 patents)
- Motoji Hayashi (3 patents)
US Patent 5796618 · Granted Aug 18, 1998