Assignee
Inventors
- Takashi Yonekawa (21 patents)
- Shuuichi Buma (86 patents)
- Toshio Aburaya (23 patents)
- Kunihito Sato (34 patents)
- Masaki Kawanishi (27 patents)
- Kouichi Kokubo (7 patents)
- Yutaka Iguchi (12 patents)
US Patent 5042834 · Granted Aug 27, 1991