Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11021499 | Bis(6-methyl-3-sulphophenyl)(2-methylphenyl)phosphine, ammonium salt thereof, and method for producing same | Tatsuya Yoshikawa, Tomoaki Tsuji, Hitoshi KOIZUMI, Kyoko Sugita, Nobumichi KUMAMOTO | 2021-06-01 |
| 10696701 | Bis(6-methyl-3-sulphophenyl)phenylphosphine, ammonium salt thereof, and method for producing same | Tatsuya Yoshikawa, Tomoaki Tsuji, Hitoshi KOIZUMI, Kyoko Sugita, Nobumichi KUMAMOTO | 2020-06-30 |