Assignee
Inventors
- Tomio Kobayashi (16 patents)
- Heikichi Sato (11 patents)
- Makoto Kubota (182 patents)
- Shoichi Kano (3 patents)
- Tatsuo Kumura (15 patents)
- Kazushi Yamauchi (19 patents)
- Yoshimi Takahashi (30 patents)
- Junichi Saito (156 patents)
US Patent 4755899 · Granted Jul 5, 1988