Assignee
Inventors
- Hidefumi Sonoda (5 patents)
- Eiji Mori (14 patents)
- Mitsuo Kawase (3 patents)
- Kazuhiro Yoneshige (13 patents)
- Akira Takahashi (622 patents)
- Hirokazu Komiya (3 patents)
- Akira Tanaka (394 patents)
US Patent 4872439 · Granted Oct 10, 1989