Assignee
Inventors
- Toyohiko Kume (34 patents)
- Toshio Goto (99 patents)
- Atsumi Kamochi (37 patents)
- Akihiko Yanagi (50 patents)
- Shigeki Yagi (9 patents)
- Hiroshi Miyauchi (10 patents)
- Katsuhiko Shibuya (76 patents)
US Patent 5077401 · Granted Dec 31, 1991