Assignee
Inventors
- Toshihiko Arai (8 patents)
- Masaharu Kusunoki (2 patents)
- Tadao Odaka (17 patents)
- Shozo Imanishi (21 patents)
- Yoshinori Kato (105 patents)
- Masakazu Hashimoto (30 patents)
- Yoshiyuki Hashimoto (60 patents)
US Patent 4741195 · Granted May 3, 1988