Assignee
Inventors
- Seiichi Tanahashi (1 patents)
- Kaoru Nagano (1 patents)
- Masaaki Kasai (5 patents)
- Fujihiko Tsubone (1 patents)
- Akio Iwama (13 patents)
- Yoshitaka Kazuse (8 patents)
- Kentaro Tasaka (2 patents)
- Yutaka Isooka (1 patents)
US Patent 4787981 · Granted Nov 29, 1988