Assignee
Inventors
- Tadashi Matsuura (6 patents)
- Kouichi Ushiroda (11 patents)
- Tatsuo Makita (3 patents)
- Masakazu Nagase (3 patents)
- Akinori Tajiri (6 patents)
- Naoto Yoshida (22 patents)
- Shigeru Nanba (2 patents)
- Koichi Saito (211 patents)
US Patent 5748690 · Granted May 5, 1998