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 |
| 6790552 | Polymer electrolyte fuel cell | Susumu Kobayashi, Kazuhito Hatoh, Hikaru Murakami, Mikio Takezawa, Takayuki Onishi | 2004-09-14 |
| 6696194 | Polymer electrolytic fuel cell | Yoshihiro Hori, Takeshi Yonamine, Osamu Sakai | 2004-02-24 |