Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6579639 | Polymer electrolyte fuel cell | Hisaaki Gyoten, Makoto Uchida, Eiichi Yasumoto, Yasushi Sugawara, Yoshihiro Hori | 2003-06-17 |
| 6541144 | Fuel cell system | Hisaaki Gyoten, Eiichi Yasumoto, Osamu Sakai | 2003-04-01 |