Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7572379 | Removal of metal ions from onium hydroxides and onium salt solutions | Wilfred W. Wilson | 2009-08-11 |
| 6508940 | Process for recovering onium hydroxides from solutions containing onium compounds | — | 2003-01-21 |
| 4505788 | Production of p-aminobenzoylglutamic acid by electrochemical reduction | Kokichi Yoshida, Takashi Baba | 1985-03-19 |
| 4256550 | Method for producing vitamin B.sub.1 and its intermediate | Kokichi Yoshida, Masao Yokoyama | 1981-03-17 |