Assignee
Inventors
- Koji Kajitani (27 patents)
- Hirotaka Fukushima (128 patents)
- Mamoru Okubo (4 patents)
- Naoki Yanagida (5 patents)
- Mitsuhiko Takenaka (9 patents)
- Mitsuo Touji (3 patents)
- Kozo Yamamoto (61 patents)
US Patent 5687618 · Granted Nov 18, 1997