Assignee
Inventors
- Noboru Yashima (18 patents)
- Naoki Kizu (7 patents)
- Mitsuru Ishizuka (12 patents)
- Satoshi Michihata (11 patents)
- Yoshihiro Kiyose (19 patents)
- Osamu Tsukahara (8 patents)
- Masaharu Ogawa (82 patents)
US Patent 8259557 · Granted Sep 4, 2012