Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4454993 | Grinder pump | Tomoyuki Shibata | 1984-06-19 |
| 4392790 | Coupling system for submergible pump | Tomoyuki Shibata, Kiyoshi Ouchi | 1983-07-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4454993 | Grinder pump | Tomoyuki Shibata | 1984-06-19 |
| 4392790 | Coupling system for submergible pump | Tomoyuki Shibata, Kiyoshi Ouchi | 1983-07-12 |