Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11198670 | Hydrocarbon-containing carboxylic acid, hydrocarbon-containing sulfonic acid, hydrocarbon-containing sulfuric acid ester or salt thereof, and surfactant | Masahiro Higashi, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke KISHIKAWA, Hirokazu Aoyama | 2021-12-14 |
| 11072580 | Sulfuric acid ester or salt thereof, and surfactant | Manabu Fujisawa, Kazuya Asano, Takahiro Kitahara, Masahiro Higashi, Akiyoshi Yamauchi +2 more | 2021-07-27 |