Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833204 | Method of operating phosphoric acid fuel cell | Shuji Sato, Masahiro Ise, Takafumi Okamoto | 2004-12-21 |
| 6770393 | Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrode | Hiroshi Akita, Masao Ichikawa, Masaru Iguchi | 2004-08-03 |
| 6767664 | Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrode | Hiroshi Akita, Masao Ichikawa, Masaru Iguchi | 2004-07-27 |