Assignee
Inventors
- Shinji Yamagata (37 patents)
- Shigemi Tamaru (12 patents)
- Hiroshi Fujii (214 patents)
- Hideo Suhara (2 patents)
- Fumiyuki Hisatsune (19 patents)
- Setsuo Hosogai (9 patents)
- Kiyomi Yamamoto (6 patents)
US Patent 4559423 · Granted Dec 17, 1985