Assignee
Inventors
- Tsutomu Nagatsuka (16 patents)
- Yoshihito Hirano (66 patents)
- Tomohiro Akiyama (39 patents)
- Ryuji Ishii (31 patents)
- Masahito Sato (17 patents)
- Toshitaka Aoyagi (25 patents)
- Eitaro Ishimura (50 patents)
US Patent 7723666 · Granted May 25, 2010