Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821665 | Proton conductor, production method thereof, and electrochemical device using the same | Koichiro Hinokuma, Björn Pietzak, Masafumi Ata | 2004-11-23 |
| 6777133 | Proton conductor, production method thereof, and electrochemical device using the same | Koichiro Hinokuma, Björn Pietzak, Masafumi Ata | 2004-08-17 |