Assignee
Inventors
- Masataka Shoji (9 patents)
- Kozo Toyota (4 patents)
- Chikahiko Eguchi (15 patents)
- Ryota Yoshimoto (14 patents)
- Yoshikatsu Koyama (3 patents)
- Hideki Domoto (4 patents)
- Akira Kamimura (5 patents)
US Patent 5250681 · Granted Oct 5, 1993