Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12199324 | Composite electrolyte membrane, electrolyte membrane having catalyst layer attached thereto, membrane-electrode composite, solid polymer-type fuel cell, and method for producing composite electrolyte membrane | Kenta Minamibayashi, Daisuke Ogata, Daisuke Izuhara | 2025-01-14 |
| 12148964 | Composite polymer electrolyte membrane, electrolyte membrane with catalyst layer, membrane-electrode assembly, and solid polymer fuel cell | Kenta Minamibayashi, Daisuke Ogata, Daisuke Izuhara | 2024-11-19 |
| 11545689 | Electrolyte membrane | Hiroaki Umeda, Tatsuhiro Inoue | 2023-01-03 |
| 10826098 | Composite polymer electrolyte membrane, membrane electrode assembly and solid polymer fuel cell using same | Yumiko Okamoto, Daisuke Izuhara, Junpei Yamaguchi, Shusuke Shirai, Hiroaki Umeda +4 more | 2020-11-03 |
| 10253147 | Polymer electrolyte composition, polymer electrolyte membrane using same, catalyst coated membrane, membrane electrode assembly and polymer electrolyte fuel cell | Daisuke Izuhara, Hiroaki Umeda | 2019-04-09 |
| 10243229 | Polymer electrolyte membrane, catalyst coated membrane, membrane electrode assembly, and polymer electrolyte fuel cell | Daisuke Izuhara, Hiroaki Umeda | 2019-03-26 |
| 10103401 | Polymer electrolyte composition and polymer electrolyte membrane, polymer electrolyte membrane with catalyst layer, membrane electrode assembly, and polymer electrolyte fuel cell each using the same | Hiroaki Umeda, Daisuke Izuhara | 2018-10-16 |
| 9748593 | Polymer electrolyte composition, and polymer electrolyte membrane, membrane electrode complex and solid polymer-type fuel cell each produced using same | Daisuke Izuhara, Naoki Shimoyama, Yuka Fujieda, Hiroaki Umeda | 2017-08-29 |
| 9685674 | Polymer electrolyte composition, and polymer electrolyte membrane, membrane electrode assembly and solid polymer fuel cell each using same | Daisuke Izuhara, Yuka Yachi | 2017-06-20 |
| 9653745 | Block copolymer, manufacturing method therefor, and polymer electrolyte material, molded polymer electrolyte, and solid-polymer fuel cell using said block copolymer | Daisuke Izuhara, Hiroaki Umeda, Emi Amano | 2017-05-16 |
| 9553326 | Aromatic sulfonic acid derivative, sulfonic acid group-containing polymer, block copolymer, polymer electrolyte material, polymer electrolyte form article, and polymer electrolyte fuel cell | Daisuke Izuhara, Hiroaki Umeda, Emi Amano | 2017-01-24 |
| 9126908 | Aromatic sulfonic acid derivative, sulfonic acid group-containing polymer, block copolymer, polymer electrolyte material, polymer electrolyte form article, and polymer electrolyte fuel cell | Daisuke Izuhara, Hiroaki Umeda, Emi Amano | 2015-09-08 |