Assignee
Inventors
- Naoki Nishikawa (65 patents)
- Akio Kawaguchi (17 patents)
- Hideo Yamashita (35 patents)
- Keisuke Tanaka (135 patents)
- Toshio Horie (15 patents)
- Yoshifumi Wakisaka (25 patents)
- Fumio Shimizu (46 patents)
US Patent 10801403 · Granted Oct 13, 2020