Assignee
Inventors
- Kozo Fujii (23 patents)
- Keigo Nishihira (35 patents)
- Hiroyuki Sawada (5 patents)
- Shuji Tanaka (121 patents)
- Mamoru Nakai (10 patents)
- Hiroshi Yoshida (675 patents)
- Teruhiko Inoue (22 patents)
- Kiyosi Oomori (2 patents)
US Patent 4539403 · Granted Sep 3, 1985