Assignee
Inventors
- Kokichi Miyazawa (3 patents)
- Kazuo Nakata (19 patents)
- Tsuneo Ishikawa (4 patents)
- Ichiro Honma (19 patents)
- Masaharu Hirai (6 patents)
- Makoto Ogasawara (37 patents)
- Toshihiko Kawamura (11 patents)
US Patent 4501774 · Granted Feb 26, 1985