Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833204 | Method of operating phosphoric acid fuel cell | Hiroyuki Oyanagi, Shuji Sato, Takafumi Okamoto | 2004-12-21 |
| 6767661 | Fuel cell system and method for operating the same | Takafumi Okamoto, Shuji Sato | 2004-07-27 |
| 6703152 | Method of operating phosphoric acid fuel cell | Teruaki Komiya, Masaru Iguchi | 2004-03-09 |