Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697145 | Method of producing a sheet electrode plate for electrochemical battery | Kenichi Fukumura | 1997-12-16 |
| 5674556 | Method for producing a sheet-like plate | Kenichi Fukumura | 1997-10-07 |