Assignee
Inventors
- Tadashi Matsuura (6 patents)
- Masakazu Nagase (3 patents)
- Kouichi Ushiroda (11 patents)
- Akinori Tajiri (6 patents)
- Sakae Ebata (7 patents)
- Naoto Yoshida (22 patents)
- Keiya Sato (2 patents)
- Tatsuo Makita (3 patents)
US Patent 5692343 · Granted Dec 2, 1997