Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6964823 | Solid polymer electrolyte, a membrane using thereof, a solution for coating electrode catalyst, a membrane/electrode assembly, and a fuel cell | Toru Koyama, Kenji Yamaga, Tomoichi Kamo, Kazutoshi Higashiyama | 2005-11-15 |
| 6893764 | Solid polyelectrolyte, assembly of membrane and electrodes, and fuel cell | Tohru Koyama, Kenji Yamaga, Tomoichi Kamo, Kazutoshi Higashiyama | 2005-05-17 |
| 6868302 | Thermal processing apparatus | Yoshihiro Koyama, Mitsukazu Takahashi | 2005-03-15 |