Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942024 | Method for refining hydroxides of niobium and tantalum containing transition metals | Hiromi Sasaki, Tadasi Tanaka | 1990-07-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942024 | Method for refining hydroxides of niobium and tantalum containing transition metals | Hiromi Sasaki, Tadasi Tanaka | 1990-07-17 |