Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10670284 | Heat exchanging ventilation device | Kouji Iio, Kenichi Ishiguro, Yasuhiro Suzuki | 2020-06-02 |
| 10337758 | Heat exchanger ventilator | Kouji Iio, Yasuaki Shima, Kenichi Ishiguro, Yasuhiro Suzuki, Teruaki Yasunishi +1 more | 2019-07-02 |