Assignee
Inventors
- Eiji Takahashi (219 patents)
- Shinichi Shimazu (1 patents)
- Yukio Wada (33 patents)
- Ichiro Iwami (1 patents)
- Takashi NISHIWAKI (11 patents)
- Toshikazu Nishiyama (13 patents)
- Yutaka Ichida (1 patents)
US Patent 4423856 · Granted Jan 3, 1984