Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10302321 | Ventilation fan and ventilation system | Hirosato Sakai, Hidenori Syougen, Nobuyuki Morimoto, Tsuraki Nakajima, Masahiro Yamaguchi +1 more | 2019-05-28 |
| 10288305 | Ventilation apparatus | Tetsuya Nagase, Toshikazu Yoshizawa, Hiroyuki Kanou, Tsuraki Nakajima, Masahiro Yamaguchi | 2019-05-14 |