Assignee
Inventors
- Kouji Ichihashi (8 patents)
- Junichi Tani (6 patents)
- Katsuhiko Tsukazaki (4 patents)
- Hiroshi Sakuyama (13 patents)
- Nobuo Baba (5 patents)
- Kiyoji Nakajima (5 patents)
- Takaaki Arai (6 patents)
- Akira Inaba (30 patents)
US Patent 4926906 · Granted May 22, 1990