Assignee
Inventors
- Takeo Fukushima (16 patents)
- Masami Mizuguchi (1 patents)
- Takahiro Furukawa (27 patents)
- Yoshiaki Yato (3 patents)
- Kenji Sato (420 patents)
- Naonobu Fujimoto (10 patents)
- Tetsuro Murase (1 patents)
US Patent 4885746 · Granted Dec 5, 1989