Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8679687 | Hydrogen generating method and hydrogen generating system based on the method | Ryoichi Okuyama, Yoshihiro Yamamoto, Masashi Motoi | 2014-03-25 |
| 7939210 | Electric automobile | Ryoichi Okuyama, Yoshihiro Yamamoto, Masashi Motoi | 2011-05-10 |
| 7910252 | Hydrogen supply system | Ryoichi Okuyama, Yoshihiro Yamamoto, Masashi Motoi | 2011-03-22 |
| 7476456 | Submarine boat | Ryoichi Okuyama, Yoshihiro Yamamoto, Masashi Motoi | 2009-01-13 |
| 5654111 | Electronic device having a battery and a battery therefor | Takeo Minomiya, Naoki Kamaya, Katsutoshi Amano, Hiroshi Kagawa | 1997-08-05 |