Assignee
Inventors
- Michio Takaoka (15 patents)
- Tsuneaki Motai (8 patents)
- Motoyuki Ono (8 patents)
- Shotaro Yoshida (13 patents)
- Unknown
- Toru Takahashi (508 patents)
- Keiichiro Kataoka (2 patents)
- Hiroshi Yamanouchi (17 patents)
US Patent 4626618 · Granted Dec 2, 1986