Assignee
Inventors
- Seiichi Asada (8 patents)
- Hiroyuki Suzuki (656 patents)
- Toshio Niihara (23 patents)
- Kazuetsu Yoshida (37 patents)
- Masaaki Futamoto (70 patents)
- Yukio Honda (81 patents)
- Norikazu Tsumita (16 patents)
- Kazuo Shiiki (41 patents)
US Patent 4743491 · Granted May 10, 1988