Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780535 | Polymer electrolyte fuel-cell separator sealing rubber composition | Yujiro Taira | 2004-08-24 |
| 6713205 | Sealing material for solid polymer fuel cell separator | Yujiro Taira | 2004-03-30 |