Assignee
Inventors
- Shigeo Takasaki (2 patents)
- Masaichiro Yoshioka (5 patents)
- Takashige Kubo (11 patents)
- Yoshio Ukai (4 patents)
- Yasuo Kubo (4 patents)
- Jinichi Imura (1 patents)
- Nobutaka Hagiwara (4 patents)
US Patent 5088031 · Granted Feb 11, 1992