Assignee
Inventors
- Hideki Morita (99 patents)
- Kazuhiro Sugawara (43 patents)
- Pc-Chieh Hung (1 patents)
- Hirotaka Hara (33 patents)
- Tadashi Nakamura (275 patents)
- Kazuyuki Kobayashi (81 patents)
- Masashi Azuma (3 patents)
- Tsuyoshi Katsuta (4 patents)
US Patent 4899215 · Granted Feb 6, 1990