Assignee
Inventors
- Ko Sugisawa (40 patents)
- Masaru Shibuki (6 patents)
- Imayoshi Imada (2 patents)
- Jun Katada (6 patents)
- Yozo Yamamoto (3 patents)
- Setsuo Nakajima (119 patents)
- Toshio Kishi (1 patents)
- Shozo Sugano (6 patents)
US Patent 4578274 · Granted Mar 25, 1986