Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6787117 | Porous hollow fiber membrane having chelate formability and method for recovery of germanium oxide using the porous hollow fiber membrane | Kyoichi Saito, Mitsuo Akiba | 2004-09-07 |