Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11739957 | Ventilation fan and ventilation system | Hidenori Syougen, Nobuyuki Morimoto, Tsuraki Nakajima, Shingo Takenawa, Masahiro Yamaguchi +1 more | 2023-08-29 |
| 11609002 | Ventilation fan and ventilation system | Hidenori Syougen, Nobuyuki Morimoto, Tsuraki Nakajima, Shingo Takenawa, Masahiro Yamaguchi +1 more | 2023-03-21 |
| 11054158 | Ventilation fan and ventilation system | Hidenori Syougen, Nobuyuki Morimoto, Tsuraki Nakajima, Shingo Takenawa, Masahiro Yamaguchi +1 more | 2021-07-06 |
| 10302321 | Ventilation fan and ventilation system | Hidenori Syougen, Nobuyuki Morimoto, Tsuraki Nakajima, Shingo Takenawa, Masahiro Yamaguchi +1 more | 2019-05-28 |
| 9581338 | Extractor hood | Masanori Yamanaka, Takashi Tonokakiuchi, Masamichi Kachi | 2017-02-28 |