Assignee
Inventors
- Katsumi Kozu (28 patents)
- Shigeo Aoki (32 patents)
- Takashi Takemura (21 patents)
- Junji Fujiwara (69 patents)
- Yoshinori Koyanagi (4 patents)
- Keisuke Tanaka (135 patents)
- Motohide Masui (2 patents)
US Patent 6822420 · Granted Nov 23, 2004