Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8252449 | Separator for electrochemical element | Takahiro Tsukuda | 2012-08-28 |
| 8202406 | Porous sheet, separator for electrochemical element, and method for manufacturing porous sheet | Takahiro Tsukuda, Tomohiro Sato | 2012-06-19 |
| 7977260 | Separator for an electric double layer capacitor | Takahiro Tsukuda, Tomohiro Sato | 2011-07-12 |
| 6905798 | Separator for electrochemical device and method for producing the same | Takahiro Tsukuda, Mitsuo Yoshida, Toshihiro Shigematsu, Kazuchiyo Takaoka, Kenji Hyodo | 2005-06-14 |