Assignee
Inventors
- Muneo Fukui (9 patents)
- Kouji Tomuro (1 patents)
- Shigeru Masuyama (1 patents)
- Atsushi Kajiyama (7 patents)
- Tamio Hikosaka (1 patents)
- Masayoshi Aruga (17 patents)
- Saburo Higuchi (2 patents)
- Yoshiaki Soeishi (2 patents)
US Patent 4772475 · Granted Sep 20, 1988