Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857155 | Process of separation of hafnium from zirconium by molten salt electrolysis | Tomoo Kirihara, Ippei Nakagawa, Yoshinobu Seki | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857155 | Process of separation of hafnium from zirconium by molten salt electrolysis | Tomoo Kirihara, Ippei Nakagawa, Yoshinobu Seki | 1989-08-15 |