Assignee
Inventors
- Tsutomu Hayashi (72 patents)
- Nobuyuki Yagigaya (1 patents)
- Masaie Kato (14 patents)
- Kazuhiko Nakamura (170 patents)
- Yoshihiro Yoshida (94 patents)
- Yoshihiro Nakajima (52 patents)
- Mitsuru Saito (74 patents)
US Patent 4781022 · Granted Nov 1, 1988