Assignee
Inventors
- Tsuneo Fujii (12 patents)
- Hiroshi Inukai (51 patents)
- Takayuki Deguchi (4 patents)
- Toshihiko Amano (9 patents)
- Masami Kakuchi (2 patents)
- Hiroshi Asakawa (21 patents)
- Osamu Kogure (7 patents)
US Patent 4686168 · Granted Aug 11, 1987