Assignee
Inventors
- Michinori Yamamoto (2 patents)
- Shozo Tashiro (7 patents)
- Satoshi Sakane (1 patents)
- Toshiro Morita (1 patents)
- Hiroshi Shiota (8 patents)
- Tadashi Rokkaku (7 patents)
- Keiichi Katayama (19 patents)
US Patent 4791830 · Granted Dec 20, 1988