Assignee
Inventors
- Hiroko Iwasaki (33 patents)
- Kenichi Aihara (21 patents)
- Kyohji Hattori (11 patents)
- Akihiko Okamoto (35 patents)
- Yoshihiko Hotta (121 patents)
- Naoshi Mishima (8 patents)
- Tetsuo Watanabe (133 patents)
US Patent 6660452 · Granted Dec 9, 2003