Assignee
Inventors
- Kenichi Yakashiro (4 patents)
- Hotaka Honma (8 patents)
- Maremizu Ishibashi (7 patents)
- Akira Sakaida (6 patents)
- Tomoji Kumano (15 patents)
- Koji Yamasaki (37 patents)
- Katsuro Kuroki (23 patents)
- Osamu Tanaka (167 patents)
US Patent 5840131 · Granted Nov 24, 1998