Assignee
Inventors
- Hideaki Nagano (12 patents)
- Koichi Nakagawa (78 patents)
- Keiji Yurugi (7 patents)
- Mitsuaki Makino (5 patents)
- Tsuyoshi Hirata (47 patents)
- Koichiro Nagare (13 patents)
- Yuichi Kita (29 patents)
US Patent 5834576 · Granted Nov 10, 1998