Assignee
Inventors
- Hajime Katayama (25 patents)
- Tateki Nagaoka (5 patents)
- Yusaku Takada (11 patents)
- Shigeyoshi Onoda (33 patents)
- Atsushi Kubota (93 patents)
- Hiroshi Hara (164 patents)
- Masashi Suda (10 patents)
US Patent 4401385 · Granted Aug 30, 1983