Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11493228 | Ventilation system and heat exchange-type ventilation device | Kenta Shuji, Masayuki Sasaki | 2022-11-08 |
| 10690373 | Total heat exchange device and controlling method of the same | Kai Liu, Houfu Lin, Simei Huang, Taketo Yamamoto, Kouji Iio | 2020-06-23 |
| 10495341 | Supply and exhaust ventilation device | Taketo Yamamoto, Meitoku Okumura, Kouji Iio, Yasuaki Shima, Tetsuya Nagase | 2019-12-03 |