Assignee
Inventors
- Kazuo Saito (199 patents)
- Hitoshi Shimoi (1 patents)
- Shunichi Sato (150 patents)
- Makoto Tadenuma (1 patents)
- Kiyoshi Yoshizawa (9 patents)
- Kazuhito Moriya (4 patents)
- Chikashi Izumi (3 patents)
US Patent 4910144 · Granted Mar 20, 1990