Assignee
Inventors
- Hiroshi Kaede (2 patents)
- Tadahiro KOIKE (7 patents)
- Shinji Kato (187 patents)
- Yorishige Maeda (14 patents)
- Yoshio Fuwa (32 patents)
- Shigetoshi Sugimoto (3 patents)
- Hikaru Aoyagi (8 patents)
- Shinzi Shibata (4 patents)
US Patent 4966751 · Granted Oct 30, 1990