Assignee
Inventors
- Nobuyuki Kato (64 patents)
- Kenji Matsuno (26 patents)
- Yoshitsugu Maruhashi (36 patents)
- Hideo Kurashima (35 patents)
- Hiroo Ikegami (6 patents)
- Setsuko Iida (7 patents)
- Kimio Takeuchi (11 patents)
US Patent 5611987 · Granted Mar 18, 1997