Assignee
Inventors
- Shigemitsu Aoki (25 patents)
- Nobuyoshi Shimizu (86 patents)
- Hirofumi Saso (13 patents)
- Yoshio Okamoto (133 patents)
- Chiaki Maeno (2 patents)
- Noboru Fujii (16 patents)
- Yasushi Saito (110 patents)
US Patent 6972651 · Granted Dec 6, 2005