Assignee
Inventors
- Harumi Matsuzaki (20 patents)
- Ryoichi Haga (18 patents)
- Yuusaku Nishimura (18 patents)
- Kenji Baba (93 patents)
- Fumio Maruhashi (5 patents)
- Nobuko Nishimura (5 patents)
- Masahiko Ishida (88 patents)
- Setuo Saitoh (1 patents)
US Patent 5162204 · Granted Nov 10, 1992