Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333012 | Process for producing ammonium metavanadate | Toshiaki Akahoshi, Akira Sakuma, Masami Iijima | 2001-12-25 |
| 6033637 | Method for treating combustion ashes | Toshiaki Akahoshi, Akira Sakuma, Masami Iijima | 2000-03-07 |