Assignee
Inventors
- Kazuo Sawada (49 patents)
- Atsuhiko Fujii (7 patents)
- Yoshihiro Nakai (121 patents)
- Naoyuki Ohkubo (7 patents)
- Hajime Shiraishi (10 patents)
- Fumio Ono (10 patents)
- Katsushi Matsuda (13 patents)
- Kazunori Tsuji (8 patents)
US Patent 5149917 · Granted Sep 22, 1992