Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821665 | Proton conductor, production method thereof, and electrochemical device using the same | Koichiro Hinokuma, Björn Pietzak, Constance Gertrud Rost | 2004-11-23 |
| 6815067 | Carbonaceous complex structure and manufacturing method therefor | Matthias Ramm | 2004-11-09 |
| 6805985 | Fuel cell and fuel cell system | Atsuo Yamada | 2004-10-19 |
| 6793967 | Carbonaceous complex structure and manufacturing method therefor | Matthias Ramm | 2004-09-21 |
| 6777133 | Proton conductor, production method thereof, and electrochemical device using the same | Koichiro Hinokuma, Björn Pietzak, Constance Gertrud Rost | 2004-08-17 |