Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8020574 | Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method | Tadahiro Ohmi, Nobukazu Ikeda, Kouji Nishino, Masaaki Nagase, Ryutaro Nishimura | 2011-09-20 |
| 7080658 | Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method | Tadahiro Ohmi, Nobukazu Ikeda, Kouji Nishino, Masaaki Nagase, Ryutaro Nishimura | 2006-07-25 |