Assignee
Inventors
- Mikio Yamashita (59 patents)
- Takuzo Sato (1 patents)
- Yoshio Noguchi (66 patents)
- Yoshinobu Uchibori (4 patents)
- Akio Shinohara (18 patents)
- Hiroshi Soga (6 patents)
- Sadayuki Miyazaki (1 patents)
US Patent 4778593 · Granted Oct 18, 1988