Carbon sheet as well as gas diffusion electrode substrate, membrane electrode assembly, and fuel cell using same
US-2026031367-A1 · Jan 29, 2026 · US
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Utsunomiya Masamichi patents
Utsunomiya Masamichi is listed as an inventor on 51 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Utsunomiya Masamichi |
| Total patents | 51 |
| First publication | Apr 30, 2015 |
| Latest publication | Jan 29, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Gas diffusion electrode base material and method for producing same, and fuel cell
US-2025343248-A1 · Nov 6, 2025 · US
Gas diffusion electrode, fuel cell, and transportation device
US-2025226424-A1 · Jul 10, 2025 · US
Method for producing gas diffusion electrode substrate
US-12142768-B2 · Nov 12, 2024 · US
Electrode base material and method for producing same
US-2024154133-A1 · May 9, 2024 · US
Gas diffusion electrode base material product and polymer electrolyte fuel cell
US-2024030461-A1 · Jan 25, 2024 · US
Gas diffusion electrode medium and method for producing the same, gas diffusion electrode, membrane electrode assembly, and polymer electrolyte fuel cell
US-11757103-B2 · Sep 12, 2023 · US
Gas diffusion layer, membrane electrode assembly, and fuel cell
US-11749810-B2 · Sep 5, 2023 · US
Gas diffusion electrode base material and production method therefor, and solid polymer fuel cell
US-11710831-B2 · Jul 25, 2023 · US
Method for producing gas diffusion electrode substrate
US-2023128336-A1 · Apr 27, 2023 · US
Recent patents
Latest publications not already listed above.
Micro-porous layer and manufacturing method therefor, gas diffusion electrode substrate, and fuel battery
US-11621426-B2 · Apr 4, 2023 · US
Gas diffusion electrode and fuel cell
US-11430995-B2 · Aug 30, 2022 · US
Gas diffusion electrode medium and method for producing the same, gas diffusion electrode, membrane electrode assembly, and polymer electrolyte fuel cell
US-2022200012-A1 · Jun 23, 2022 · US
Gas diffusion electrode substrate and method for producing gas diffusion electrode substrate
US-11329293-B2 · May 10, 2022 · US
Gas diffusion electrode, method for manufacturing gas diffusion electrode, membrane electrode assembly, and fuel cell
US-11309546-B2 · Apr 19, 2022 · US
Electrode and redox flow battery
US-11302951-B2 · Apr 12, 2022 · US
Gas diffusion layer, membrane electrode assembly, and fuel cell
US-2022037674-A1 · Feb 3, 2022 · US
Gas diffusion electrode base material and production method therefor, and solid polymer fuel cell
US-2022029170-A1 · Jan 27, 2022 · US
Gas diffusion electrode, method for manufacturing gas diffusion electrode, membrane electrode assembly, and fuel cell
US-2022006097-A1 · Jan 6, 2022 · US
Gas diffusion electrode substrate and method for producing gas diffusion electrode substrate
US-2021305584-A1 · Sep 30, 2021 · US
Electrode, redox flow battery, and method for producing electrode
US-10950867-B2 · Mar 16, 2021 · US
Gas diffusion electrode and fuel cell
US-10950868-B2 · Mar 16, 2021 · US
Carbon sheet, gas diffusion electrode substrate and fuel cell
US-10854887-B2 · Dec 1, 2020 · US
Gas diffusion electrode
US-10818934-B2 · Oct 27, 2020 · US
Gas diffusion electrode base, laminate and fuel cell
US-10804542-B2 · Oct 13, 2020 · US
Gas diffusion electrode substrate, and membrane electrode assembly and fuel cell equipped with same
US-10804544-B2 · Oct 13, 2020 · US
Micro-porous layer and manufacturing method therefor, gas diffusion electrode substrate, and fuel battery
US-2020313200-A1 · Oct 1, 2020 · US
Gas diffusion electrode and method for manufacturing same
US-10790516-B2 · Sep 29, 2020 · US
Carbon sheet, gas diffusion electrode substrate and fuel cell
US-10593956-B2 · Mar 17, 2020 · US
Gas diffusion electrode and fuel cell
US-10461334-B2 · Oct 29, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Toray Industries | 51 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| Y02E60/50 | 51 |
| H01M2008/1095 | 43 |
| H01M8/0234 | 41 |
| H01M8/0245 | 40 |
| H01M4/96 | 36 |