Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4537910 | Method of producing cation-exchange membrane having roughed surface | Michiharu Oogai, Toru Seita, Hideo Shuyama | 1985-08-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4537910 | Method of producing cation-exchange membrane having roughed surface | Michiharu Oogai, Toru Seita, Hideo Shuyama | 1985-08-27 |