Issued Patents 2018
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10161771 | Measurement device for measuring airflow volume and a ventilation resistance and having a specific opening for allowing an opening plate to be replaceable and differential pressure measurement arrangement | Masahiro Koike, Tomoaki Ikeda, Yo Muramatsu, Katsumichi Ishihara, Hikaru Urushimoto | 2018-12-25 |
| 10036660 | Measurement device having variable opening orifice for measuring airflow volume and ventilation resistance of wind blowing apparatus | Katsumichi Ishihara, Yo Muramatsu, Masahiro Koike, Hikaru Urushimoto | 2018-07-31 |
| 9874215 | Fan motor control unit | Yo Muramatsu, Kenta Nishimaki | 2018-01-23 |
| 9857209 | Measurement device for measuring airflow volume and ventilation resistance of wind-blowing apparatus | Katsumichi Ishihara, Yo Muramatsu | 2018-01-02 |