Assignee
Inventors
- Ginya Adachi (1 patents)
- Nobuhito Imanaka (2 patents)
- Hiromichi Aono (1 patents)
- Eisuke Sugimoto (2 patents)
- Yoshihiko Sadaoka (9 patents)
- Naoshi Yasuda (15 patents)
- Takeo Hara (6 patents)
- Masaki Nagata (56 patents)
US Patent 4985317 · Granted Jan 15, 1991