Assignee
Inventors
- Takanari Okuda (3 patents)
- Shigeo Nomura (13 patents)
- Itaru Shibahara (2 patents)
- Yoshinori Tateishi (22 patents)
- Susumu Hirano (7 patents)
- Hiroshi Teranishi (5 patents)
- Masayuki Fujiwara (25 patents)
- Toshio Nishida (30 patents)
US Patent 4960562 · Granted Oct 2, 1990