Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11982270 | Pump device | — | 2024-05-14 |
| 11867177 | Pump device including return passage for returning fluid from discharge passage to suction passage | — | 2024-01-09 |
| 4752525 | Wave absorber and method for making same | Tomio Oyachi, Hideo Tajima, Tatsuya Kanayama, Minoru Ishiharada | 1988-06-21 |