Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12398228 | Method for producing fluorosulfonyl group-containing fluorinated polymer, method for producing salt-type sulfonic acid group- containing fluorinated polymer and method for producing acid-type sulfonic acid group-containing fluorinated polymer | Takeshi Hirai | 2025-08-26 |
| 12261335 | Liquid composition, polymer electrolyte membrane, membrane electrode assembly and polymer electrolyte fuel cell | Takumi Okuyama, Hiroyuki Watabe | 2025-03-25 |