Assignee
Inventors
- Sachio Matsuo (2 patents)
- Tadashi Sakane (10 patents)
- Ryoichi Noumi (5 patents)
- Shinji Fujiwara (1 patents)
- Hiroshi Fukudome (8 patents)
- Rikizo Kobashi (3 patents)
- Hiroumi Izaiku (1 patents)
- Toshinari Yazawa (1 patents)
US Patent 4432851 · Granted Feb 21, 1984