Assignee
Inventors
- Koichi Yamasaki (21 patents)
- Tatsuhiko Osaka (6 patents)
- Hitonaga Nakano (1 patents)
- Toji Mukai (5 patents)
- Yasuhiro Nagata (14 patents)
- Sadaaki Nakaoka (2 patents)
- Susumu Fujita (2 patents)
- Yoichi Hamada (9 patents)
US Patent 5320734 · Granted Jun 14, 1994