Assignee
Inventors
- Tsutomu Tsuruoka (5 patents)
- Satoru Nakabayashi (10 patents)
- Harumi Fukuyasu (7 patents)
- Yuuko Ishii (2 patents)
- Takashi Tsuruoka (43 patents)
- Haruo Yamamoto (11 patents)
- Shigeharu Inouye (40 patents)
- Shinichi Kondo (60 patents)
US Patent 5250545 · Granted Oct 5, 1993