Assignee
Inventors
- Akiyoshi Johdai (30 patents)
- Keichi Kinoshita (18 patents)
- Toshio Matsui (31 patents)
- Takeshi Yoshikai (3 patents)
- Tadashi Maruyama (21 patents)
- Kazuhito Ozawa (18 patents)
- Hiroki Yamashita (121 patents)
US Patent 5083761 · Granted Jan 28, 1992