Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789444 | Process for electrolytically producing metals of Ni, Co, Zn, Cu, Mn, and Cr from a solution thereof | Morio Watanabe, Nobuatsu Watanabe | 1988-12-06 |
| 4741893 | Process for producing fluorides of metals | Morio Watanabe | 1988-05-03 |
| 4678646 | Crystallizer | Morio Watanabe, Nobuatsu Watanabe | 1987-07-07 |
| 4670230 | Process for selectively stripping iron ions from an organic solvent | Morio Watanabe | 1987-06-02 |
| 4639355 | Process for recovering gallium from aluminum smelting dust | Shingo Matsui, Hidetsugu Ikeda, Akio Era | 1987-01-27 |
| 4497655 | Process for production of high-purity metallic iron | Morio Watanabe | 1985-02-05 |
| 4478804 | Recovery process of uranium | Morio Watanabe | 1984-10-23 |
| 4434002 | Process for production of high-purity metallic iron | Morio Watanabe | 1984-02-28 |
| 4397682 | Process for preparing metals from their fluorine-containing compounds | Morio Watanabe, Nobuatsu Watanabe | 1983-08-09 |
| 4390508 | Process for recovery of aluminum oxide from aluminum compounds containing fluorine | Morio Watanabe, Nobuatsu Watanabe | 1983-06-28 |
| 4349514 | Process for recovery of reusable chromic acid from the waste chromic acid solution containing impurities | Morio Watanabe | 1982-09-14 |
| 4210502 | Process for recovery of waste H.sub.2 SO.sub.4 and HCl | Morio Watanabe | 1980-07-01 |