Assignee
Inventors
- Yoji Nakajima (20 patents)
- Hiroyuki Iwasaki (97 patents)
- Kazuki Ishikawa (14 patents)
- Yoshio Saito (84 patents)
- Nobuo Arai (6 patents)
- Hiroyuki Goto (63 patents)
- Shuichi Togasawa (5 patents)
US Patent 6176256 · Granted Jan 23, 2001