Assignee
Inventors
- Toshiro Koguchi (1 patents)
- Hiroshi Kase (37 patents)
- Isao Kawamoto (42 patents)
- Masaji Kasai (43 patents)
- Kunikatsu Shirahata (32 patents)
- Ryo Okachi (9 patents)
- Kiyoshi Nakayama (47 patents)
US Patent 4522812 · Granted Jun 11, 1985