Assignee
Inventors
- Katsunori Sakiyama (18 patents)
- Yoshikatsu Nagayama (9 patents)
- Hiroki Hibino (48 patents)
- Yutaka Takahashi (191 patents)
- Sakae Takehana (38 patents)
- Yoshihito Shimizu (20 patents)
- Yoshinao Oaki (24 patents)
- Koji Koda (7 patents)
US Patent 5273025 · Granted Dec 28, 1993