Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5257902 | Blower with improved impeller vanes | Kiyoshi Sano, Shotaro Ito | 1993-11-02 |
| 5064346 | Impeller of multiblade blower | — | 1991-11-12 |
| 4971521 | Airfoil blade for impeller fan and manufacturing method thereof | Shotaro Ito, Kiyoshi Sano, Kazuaki Yamamoto | 1990-11-20 |
| 4893990 | Mixed flow impeller | Teruhiko Tomohiro | 1990-01-16 |