Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818339 | Polymer electrolyte type fuel cell | Yasushi Sugawara, Hisaaki Gyoten, Makoto Uchida, Eiichi Yasumoto, Teruhisa Kanbara +6 more | 2004-11-16 |
| 6770396 | Polymer electrolyte fuel cell | Kazuhito Hatoh, Hideo Ohara, Susumu Kobayashi, Tatsuto Yamazaki, Nobuhiro Hase +1 more | 2004-08-03 |
| 6740443 | Polymer electrolyte fuel cell | Tatsuto Yamazaki, Yoshiaki Yamamoto, Hideo Ohara, Nobuhiro Hase, Shinsuke Takeguchi | 2004-05-25 |