Assignee
Inventors
- Kazunori Shigemori (8 patents)
- Hidetoshi Azuma (4 patents)
- Yoshihiro Makuta (7 patents)
- Hirosi Yamamoto (2 patents)
- Nobuyasu Ota (6 patents)
- Kazuhiro Sato (233 patents)
- Ryuji Ota (2 patents)
US Patent 6740463 · Granted May 25, 2004