Assignee
Inventors
- Toshihiko Setoguchi (16 patents)
- Yuichi Fujioka (12 patents)
- Yoshihiko Tsuchiyama (9 patents)
- Toshiaki Ohkubo (6 patents)
- Akinori Yasutake (24 patents)
- Norihisa Kobayashi (55 patents)
- Akira Hattori (40 patents)
US Patent 6631612 · Granted Oct 14, 2003