Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421970 | Axial fan having control board cover with windows at top surface and side peripheral surface of control board cover | Atsushi Yanagisawa | 2025-09-23 |
| 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, Takahisa Toda, Yo Muramatsu, Hikaru Urushimoto | 2018-12-25 |
| 10036660 | Measurement device having variable opening orifice for measuring airflow volume and ventilation resistance of wind blowing apparatus | Takahisa Toda, Yo Muramatsu, Masahiro Koike, Hikaru Urushimoto | 2018-07-31 |
| 9869321 | Waterproof axial flow fan | Akira Nakayama, Tatsuya Midorikawa, Masato KAKEYAMA | 2018-01-16 |
| 9857209 | Measurement device for measuring airflow volume and ventilation resistance of wind-blowing apparatus | Takahisa Toda, Yo Muramatsu | 2018-01-02 |
| 9748814 | Assembly method of an inline type fan motor | Masashi Nomura, Tomoko Hayashi | 2017-08-29 |
| 8770943 | Axial flow fan | — | 2014-07-08 |
| 7909568 | Counter-rotating axial-flow fan | Honami Oosawa | 2011-03-22 |
| 7866945 | Axial flow fan | Honami Oosawa | 2011-01-11 |
| 7828519 | Axial flow fan | Honami Oosawa | 2010-11-09 |
| 7541702 | Brushless fan motor | Naoki Murakami, Hiromitsu Kuribayashi | 2009-06-02 |
| 7445423 | Counter-rotating axial-flow fan | Honami Oosawa | 2008-11-04 |
| D560622 | Fan | Honami Ohsawa | 2008-01-29 |
| 7156611 | Counterrotating axial blower | Honami Oosawa, Toshiyuki Nakamura, Takashi Kaise, Yoshihiko Aizawa, Seiji Nishimura | 2007-01-02 |
| D517674 | Impeller for an axial fan | Honami Oosawa, Yoshihiko Aizawa | 2006-03-21 |
| D516693 | Axial fan with double impellers rotating in mutually opposite directions | Honami Oosawa, Yoshihiko Aizawa | 2006-03-07 |
| D516194 | Axial fan with double impellers rotating in mutually opposite directions | Honami Oosawa, Yoshihiko Aizawa | 2006-02-28 |