Assignee
Inventors
- Hiroaki Komatsubara (4 patents)
- Masanao Kobayashi (9 patents)
- Toshiaki Shimizu (39 patents)
- Ikuo Yamauchi (2 patents)
- Unknown
- Eiji Tabata (15 patents)
- Fumio Kawahara (21 patents)
- Yuzo Matsuda (2 patents)
US Patent 10711220 · Granted Jul 14, 2020