Assignee
Inventors
- Hiroaki Yanagisawa (24 patents)
- Koichi Fujimoto (23 patents)
- Yoshiya Amemiya (6 patents)
- Yasuo Shimoji (10 patents)
- Takuro Kanazaki (6 patents)
- Hiroyuki Koike (33 patents)
- Toshio Sada (8 patents)
US Patent 5616599 · Granted Apr 1, 1997