Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8072340 | Water leakage monitoring system | Katsuya Yokokawa, Naoto Oishi | 2011-12-06 |
| 8002980 | Heavy metal collection system | Ryoichi Arimura, Nobuyuki Ashikaga, Takashi Menju, Hiromi Tsukui, Hirofumi Noguchi +1 more | 2011-08-23 |