Assignee
Inventors
- Takashi Aoki (398 patents)
- Minoru Yonemura (2 patents)
- Hiroji Ito (3 patents)
- Akihiro Shigeta (1 patents)
- Yasuji Imai (1 patents)
- Tatsuo Miyachi (12 patents)
- Tomoyuki Nishimura (10 patents)
- Naoya Ishikawa (11 patents)
US Patent 5199778 · Granted Apr 6, 1993