Assignee
Inventors
- Unknown
- Kiyoshi Araki (33 patents)
- Noriya Ishida (14 patents)
- Toshiya Kitamura (10 patents)
- Yasuhiko Niitsu (1 patents)
- Makiko Yanagisawa (2 patents)
- Ryo Sakamoto (32 patents)
- Fumihiro Sato (11 patents)
US Patent 5462821 · Granted Oct 31, 1995