Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6825310 | Halogenated aromatic compound, polymer thereof, and proton-conductive membrane comprising same | Kohei Goto, Masayuki Takahashi, Yoshitaka Yamakawa | 2004-11-30 |
| 6794480 | Monomer containing electron-withdrawing group and electron-donative group, and copolymer and proton-conductive membrane comprising same | Kohei Goto, Masayuki Takahashi, Yoshitaka Yamakawa | 2004-09-21 |
| 6685984 | Method for the production of multilayers | Kohei Goto, Yoichi Asano, Ryoichiro Takahashi, Osamu Kakutani, Gen Okiyama | 2004-02-03 |