Assignee
Inventors
- Masaaki Katsumata (62 patents)
- Isamu Takagi (10 patents)
- Eiji Takahashi (219 patents)
- Tadamichi Sakai (1 patents)
- Yoji Matsumoto (2 patents)
- Hideaki Ohtsu (2 patents)
- Hiroyuki Uchida (227 patents)
- Kiyoshi Asami (8 patents)
US Patent 4855106 · Granted Aug 8, 1989