Assignee
Inventors
- Akira Imaizumi (12 patents)
- Nobukazu ONO (3 patents)
- Ryosei Sakai (1 patents)
- Toshihiko Ando (15 patents)
- Naoyuki Okamoto (34 patents)
- Fumio Imamura (2 patents)
- Masahiko Higashiyama (2 patents)
US Patent 9664681 · Granted May 30, 2017