Assignee
Inventors
- Yasuhiro Honma (7 patents)
- Nobuo Miyazaki (2 patents)
- Hisashi Misumi (4 patents)
- Toshiyasu Suda (1 patents)
- Shuichi Akazaki (7 patents)
- Yoshihiro Minematsu (4 patents)
- Michio Kawai (6 patents)
US Patent 4966158 · Granted Oct 30, 1990