Assignee
Inventors
- Masatoshi Ono (53 patents)
- Wataru Mizutani (10 patents)
- Hiroshi Murakami (222 patents)
- Hiroshi Bando (19 patents)
- Shigeru Wakiyama (19 patents)
- Fumiki Sakai (4 patents)
- Takashi Wakatsuki (2 patents)
US Patent 4866271 · Granted Sep 12, 1989