Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660419 | Solid polymer electrolyte fuel cell | Eiichi Yasumoto, Hisaaki Gyoten, Kazuhito Hatoh, Makoto Uchida, Hideo Ohara +4 more | 2003-12-09 |
| 6660424 | Fuel cell and method of manufacture thereof | Hisaaki Gyoten, Eiichi Yasumoto, Makoto Uchida, Yasushi Sugawara, Kazuhito Hatoh +6 more | 2003-12-09 |
| 6531236 | Polymer electrolyte fuel cell stack | Kazuhito Hatoh, Eiichi Yasumoto, Hisaaki Gyoten, Teruhisa Kanbara, Hideo Ohara +3 more | 2003-03-11 |