Assignee
Inventors
- Takayoshi Togino (134 patents)
- Hiroshi Fujiwara (116 patents)
- Yutaka Takabayashi (5 patents)
- Takashi Nagano (70 patents)
- Takashi Fukaya (33 patents)
- Kazuyuki Minami (19 patents)
- Toshiyuki Tsunoda (13 patents)
US Patent 4802749 · Granted Feb 7, 1989