Assignee
Inventors
- Shigeyoshi Hiratsuka (7 patents)
- Toshihiko Tsukada (5 patents)
- Shin-ichi Kojima (17 patents)
- Nobuyuki Shiraki (17 patents)
- Keiichi Shimaoka (18 patents)
- Kazuya Asaoka (11 patents)
- Sho Masuda (21 patents)
US Patent 9732926 · Granted Aug 15, 2017