Assignee
Inventors
- Kazushige Kawamura (27 patents)
- Yoichi Umehara (8 patents)
- Dai Takeda (10 patents)
- Osamu Togari (5 patents)
- Naonori Sonehara (1 patents)
- Hiroaki Nishijima (10 patents)
- Sachio Asaoka (33 patents)
US Patent 6616905 · Granted Sep 9, 2003