Assignee
Inventors
- Takumi Hijii (4 patents)
- Naoki Nishikawa (65 patents)
- Akio Kawaguchi (17 patents)
- Koichi Nakata (75 patents)
- Yoshifumi Wakisaka (25 patents)
- Hidemasa Kosaka (3 patents)
- Fumio Shimizu (46 patents)
US Patent 8893693 · Granted Nov 25, 2014