Assignee
Inventors
- Takayuki Arai (106 patents)
- Hiromichi Ofuji (8 patents)
- Takaharu Goto (8 patents)
- Takehisa Kondo (6 patents)
- Seinosuke Hara (77 patents)
- Seiji Suga (43 patents)
- Hiroaki Hamada (11 patents)
- Tatsuyuki Matsuya (5 patents)
US Patent 4809650 · Granted Mar 7, 1989