Assignee
Inventors
- Shumpei Kameyama (37 patents)
- Yoshihito Hirano (66 patents)
- Kimio Asaka (7 patents)
- Toshiyuki Ando (43 patents)
- Atsushi Okamura (37 patents)
- Toshio Wakayama (17 patents)
- Hiroshi Sakamaki (59 patents)
US Patent 7209222 · Granted Apr 24, 2007