Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10598397 | Ventilation fan | Yoshihiro Kagawa, Daisuke Kobayashi, Hiromitsu Yamauchi | 2020-03-24 |
| 7967557 | Multiblade centrifugal blower | Kazuki Okamoto, Hitoshi Kikuchi, Yasuyoshi Makino, Shoji Yamada | 2011-06-28 |