Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7505126 | Method and device for monitoring hydrogen gas and hydrogen flame | Hideki Ninomiya, Koji Ichikawa, Hirofumi Miki | 2009-03-17 |
| 7385681 | Gas leakage monitoring method and its system | Hideki Ninomiya, Koji Ichikawa, Ken Kawahara, Hirofumi Miki | 2008-06-10 |