Assignee
Inventors
- Hiroyuki Sugiyama (219 patents)
- Nobuaki Takahashi (175 patents)
- Takeshi Shibamoto (14 patents)
- Kazunori Nishikawa (31 patents)
- Shoji Ueno (84 patents)
- Makoto Komura (8 patents)
- Shunichi Shichijo (9 patents)
US Patent 4660099 · Granted Apr 21, 1987