Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931216 | Detergent composition comprising an anionic or amphoteric surface active agent and a branched quaternary ammonium salt | Hidekazu Ogino, Hajime Hirota | 1990-06-05 |
| 4876034 | Secondary amidoamino acid based detergent composition | Hajime Hirota, Hidekazu Ogino, Kohshiro Sotoya | 1989-10-24 |
| 4758376 | Phosphate surfactant based detergent compositions | Hajime Hirota, Hidekazu Ogino, Hideko Ishido, Yutaka Shibata, Chizuru Fukami | 1988-07-19 |