Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830594 | Process for producing an electric double layer capacitor and positive electrode for an electric double layer capacitor | Naoki Yoshida, Kazuya Hiratsuka | 2004-12-14 |
| 6827879 | Activated carbon material, process for producing the same and electric double layer capacitor employing the same | Kazuya Hiratsuka, Toshiharu Nonaka, Kazuyuki Murakami | 2004-12-07 |