Assignee
Inventors
- Takeshi Chikamori (2 patents)
- Masaki Ohkubo (1 patents)
- Akira Kamisakamoto (2 patents)
- Shoji Imai (10 patents)
- Shunichi Tsubota (1 patents)
- Hideyuki Uemura (7 patents)
- Shinichi Wakutani (4 patents)
US Patent 5081974 · Granted Jan 21, 1992