Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6026996 | Brick body for rotary nozzle and rotary nozzle using same | Yuji Hayakawa, Masahiro Tsuru, Hiroshi Suwabe | 2000-02-22 |
| 5249717 | Rotary nozzle | Hisao Inubushi, Masashi Matsuura | 1993-10-05 |