Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7891958 | Impeller pump with reflux passages and apparatus using same | Toshisuke Sakai | 2011-02-22 |
| D604331 | Pump | Ryohei Tokunaga, Masahiro Hirata | 2009-11-17 |
| D604332 | Pump | Ryohei Tokunaga, Masahiro Hirata | 2009-11-17 |
| D602500 | Pump | Ryohei Tokunaga, Masahiro Hirata | 2009-10-20 |