Assignee
Inventors
- Kiyoshi Yoneda (60 patents)
- Hiroshi Takeuchi (265 patents)
- Tetsuo Yamatani (3 patents)
- Toyoto Hijiya (19 patents)
- Hideo Takeda (15 patents)
- Koji Shibuya (8 patents)
- Kiichiro Tanaka (11 patents)
US Patent 4536842 · Granted Aug 20, 1985