Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6652819 | Production of high purity vanadium compound from vanadium-containing carbonaceous residues | Yoshimi Shiroto | 2003-11-25 |
| 4874483 | Process for the preparation of redox battery electrolyte and recovery of lead chloride | Yohichi Umehara, Satsuki Morie, Ikuro Kuwahara, Yoshimi Okada | 1989-10-17 |
| 4277451 | Wet process for the desulfurization of exhaust gas | Isao Masuhara | 1981-07-07 |